Annotation of gcc/cp/cp-tree.h, revision 1.1.1.1

1.1       root        1: /* Definitions for C++ parsing and type checking.
                      2:    Copyright (C) 1987, 1993 Free Software Foundation, Inc.
                      3:    Hacked by Michael Tiemann ([email protected])
                      4: 
                      5: This file is part of GNU CC.
                      6: 
                      7: GNU CC is free software; you can redistribute it and/or modify
                      8: it under the terms of the GNU General Public License as published by
                      9: the Free Software Foundation; either version 2, or (at your option)
                     10: any later version.
                     11: 
                     12: GNU CC is distributed in the hope that it will be useful,
                     13: but WITHOUT ANY WARRANTY; without even the implied warranty of
                     14: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     15: GNU General Public License for more details.
                     16: 
                     17: You should have received a copy of the GNU General Public License
                     18: along with GNU CC; see the file COPYING.  If not, write to
                     19: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
                     20: 
                     21: #ifndef _CP_TREE_H
                     22: #define _CP_TREE_H
                     23: 
                     24: /* Borrow everything that is C from c-tree.h,
                     25:    but do so by copy, not by inclusion, since c-tree.h defines
                     26:    lang_identifier.  */
                     27: 
                     28: #ifndef STDIO_PROTO
                     29: #ifdef BUFSIZ
                     30: #define STDIO_PROTO(ARGS) PROTO(ARGS)
                     31: #else
                     32: #define STDIO_PROTO(ARGS) ()
                     33: #endif
                     34: #endif
                     35: 
                     36: /* Language-dependent contents of an identifier.  */
                     37: 
                     38: struct lang_identifier
                     39: {
                     40:   struct tree_identifier ignore;
                     41:   tree global_value, local_value;
                     42:   tree class_value;
                     43:   tree class_template_info;
                     44:   struct lang_id2 *x;
                     45: };
                     46: 
                     47: struct lang_id2
                     48: {
                     49:   tree label_value, implicit_decl;
                     50:   tree type_desc, as_list, error_locus;
                     51: };
                     52: 
                     53: /* To identify to the debug emitters if it should pay attention to the
                     54:    flag `-Wtemplate-debugging'.  */
                     55: #define HAVE_TEMPLATES 1
                     56: 
                     57: /* Macros for access to language-specific slots in an identifier.  */
                     58: 
                     59: #define IDENTIFIER_GLOBAL_VALUE(NODE)  \
                     60:   (((struct lang_identifier *)(NODE))->global_value)
                     61: #define IDENTIFIER_CLASS_VALUE(NODE)   \
                     62:   (((struct lang_identifier *)(NODE))->class_value)
                     63: #define IDENTIFIER_LOCAL_VALUE(NODE)   \
                     64:   (((struct lang_identifier *)(NODE))->local_value)
                     65: #define IDENTIFIER_TEMPLATE(NODE)      \
                     66:   (((struct lang_identifier *)(NODE))->class_template_info)
                     67: 
                     68: #define IDENTIFIER_TYPE_VALUE(NODE) (TREE_TYPE (NODE))
                     69: #define SET_IDENTIFIER_TYPE_VALUE(NODE,TYPE) (TREE_TYPE (NODE) = TYPE)
                     70: #define IDENTIFIER_HAS_TYPE_VALUE(NODE) (TREE_TYPE (NODE) ? 1 : 0)
                     71: 
                     72: #define LANG_ID_FIELD(NAME,NODE) \
                     73:   (((struct lang_identifier *)(NODE))->x \
                     74:    ? ((struct lang_identifier *)(NODE))->x->NAME : 0)
                     75: #define SET_LANG_ID(NODE,VALUE,NAME) \
                     76:   (((struct lang_identifier *)(NODE))->x == 0                              \
                     77:    ? ((struct lang_identifier *)(NODE))->x                                 \
                     78:       = (struct lang_id2 *)perm_calloc (1, sizeof (struct lang_id2)) : 0,   \
                     79:    ((struct lang_identifier *)(NODE))->x->NAME = (VALUE))
                     80: 
                     81: #define IDENTIFIER_LABEL_VALUE(NODE)       LANG_ID_FIELD(label_value, NODE)
                     82: #define SET_IDENTIFIER_LABEL_VALUE(NODE,VALUE)   \
                     83:        SET_LANG_ID(NODE, VALUE, label_value)
                     84: 
                     85: #define IDENTIFIER_IMPLICIT_DECL(NODE)     LANG_ID_FIELD(implicit_decl, NODE)
                     86: #define SET_IDENTIFIER_IMPLICIT_DECL(NODE,VALUE) \
                     87:        SET_LANG_ID(NODE, VALUE, implicit_decl)
                     88: 
                     89: #define IDENTIFIER_AS_DESC(NODE)           LANG_ID_FIELD(type_desc, NODE)
                     90: #define SET_IDENTIFIER_AS_DESC(NODE,DESC)      \
                     91:        SET_LANG_ID(NODE, DESC, type_desc)
                     92: 
                     93: #define IDENTIFIER_AS_LIST(NODE)           LANG_ID_FIELD(as_list, NODE)
                     94: #define SET_IDENTIFIER_AS_LIST(NODE,LIST)      \
                     95:        SET_LANG_ID(NODE, LIST, as_list)
                     96: 
                     97: #define IDENTIFIER_ERROR_LOCUS(NODE)       LANG_ID_FIELD(error_locus, NODE)
                     98: #define SET_IDENTIFIER_ERROR_LOCUS(NODE,VALUE) \
                     99:        SET_LANG_ID(NODE, VALUE, error_locus)
                    100: 
                    101: 
                    102: #define IDENTIFIER_VIRTUAL_P(NODE) TREE_LANG_FLAG_1(NODE)
                    103: 
                    104: /* Nonzero if this identifier is the prefix for a mangled C++ operator name.  */
                    105: #define IDENTIFIER_OPNAME_P(NODE) TREE_LANG_FLAG_2(NODE)
                    106: 
                    107: #define IDENTIFIER_TYPENAME_P(NODE)    \
                    108:   (! strncmp (IDENTIFIER_POINTER (NODE),                       \
                    109:              IDENTIFIER_POINTER (ansi_opname[(int) TYPE_EXPR]),        \
                    110:              IDENTIFIER_LENGTH (ansi_opname[(int) TYPE_EXPR])))
                    111: 
                    112: /* Nonzero means reject anything that ANSI standard C forbids.  */
                    113: extern int pedantic;
                    114: 
                    115: /* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is read-only.  */
                    116: #define C_TYPE_FIELDS_READONLY(type) TYPE_LANG_FLAG_0 (type)
                    117: 
                    118: /* If non-zero, a VAR_DECL whose cleanup will cause a throw to the
                    119:    next exception handler.  */
                    120: extern tree exception_throw_decl;
                    121: 
                    122: extern tree double_type_node, long_double_type_node, float_type_node;
                    123: extern tree char_type_node, unsigned_char_type_node, signed_char_type_node;
                    124: extern tree ptrdiff_type_node;
                    125: 
                    126: extern tree short_integer_type_node, short_unsigned_type_node;
                    127: extern tree long_integer_type_node, long_unsigned_type_node;
                    128: extern tree long_long_integer_type_node, long_long_unsigned_type_node;
                    129: extern tree unsigned_type_node;
                    130: extern tree string_type_node, char_array_type_node, int_array_type_node;
                    131: extern tree wchar_array_type_node;
                    132: extern tree wchar_type_node, signed_wchar_type_node, unsigned_wchar_type_node;
                    133: extern tree intQI_type_node, unsigned_intQI_type_node;
                    134: extern tree intHI_type_node, unsigned_intHI_type_node;
                    135: extern tree intSI_type_node, unsigned_intSI_type_node;
                    136: extern tree intDI_type_node, unsigned_intDI_type_node;
                    137: 
                    138: extern int current_function_returns_value;
                    139: extern int current_function_returns_null;
                    140: extern tree current_function_return_value;
                    141: 
                    142: extern tree ridpointers[];
                    143: extern tree ansi_opname[];
                    144: extern tree ansi_assopname[];
                    145: 
                    146: /* Nonzero means `$' can be in an identifier.  */
                    147: 
                    148: extern int dollars_in_ident;
                    149: 
                    150: /* Nonzero means allow type mismatches in conditional expressions;
                    151:    just make their values `void'.   */
                    152: 
                    153: extern int flag_cond_mismatch;
                    154: 
                    155: /* Nonzero means don't recognize the keyword `asm'.  */
                    156: 
                    157: extern int flag_no_asm;
                    158: 
                    159: /* For cross referencing.  */
                    160: 
                    161: extern int flag_gnu_xref;
                    162: 
                    163: /* For environments where you can use GNU binutils (as, ld in particular).  */
                    164: 
                    165: extern int flag_gnu_binutils;
                    166: 
                    167: /* Nonzero means ignore `#ident' directives.  */
                    168: 
                    169: extern int flag_no_ident;
                    170: 
                    171: /* Nonzero means warn about implicit declarations.  */
                    172: 
                    173: extern int warn_implicit;
                    174: 
                    175: /* Nonzero means warn when all ctors or dtors are private, and the class
                    176:    has no friends.  */
                    177: 
                    178: extern int warn_ctor_dtor_privacy;
                    179: 
                    180: /* Nonzero means warn about function definitions that default the return type
                    181:    or that use a null return and have a return-type other than void.  */
                    182: 
                    183: extern int warn_return_type;
                    184: 
                    185: /* Nonzero means give string constants the type `const char *'
                    186:    to get extra warnings from them.  These warnings will be too numerous
                    187:    to be useful, except in thoroughly ANSIfied programs.  */
                    188: 
                    189: extern int warn_write_strings;
                    190: 
                    191: /* Nonzero means warn about sizeof(function) or addition/subtraction
                    192:    of function pointers.  */
                    193: 
                    194: extern int warn_pointer_arith;
                    195: 
                    196: /* Nonzero means warn for all old-style non-prototype function decls.  */
                    197: 
                    198: extern int warn_strict_prototypes;
                    199: 
                    200: /* Nonzero means warn about suggesting putting in ()'s.  */
                    201: 
                    202: extern int warn_parentheses;
                    203: 
                    204: /* Nonzero means warn about multiple (redundant) decls for the same single
                    205:    variable or function.  */
                    206: 
                    207: extern int warn_redundant_decls;
                    208: 
                    209: /* Warn if initializer is not completely bracketed.  */
                    210: 
                    211: extern int warn_missing_braces;
                    212: 
                    213: /* Warn about a subscript that has type char.  */
                    214: 
                    215: extern int warn_char_subscripts;
                    216: 
                    217: /* Nonzero means warn about pointer casts that can drop a type qualifier
                    218:    from the pointer target type.  */
                    219: 
                    220: extern int warn_cast_qual;
                    221: 
                    222: /* Warn about traditional constructs whose meanings changed in ANSI C.  */
                    223: 
                    224: extern int warn_traditional;
                    225: 
                    226: /* Warn about *printf or *scanf format/argument anomalies. */
                    227: 
                    228: extern int warn_format;
                    229: 
                    230: /* Nonzero means warn about non virtual destructors in classes that have
                    231:    virtual functions. */
                    232: 
                    233: extern int warn_nonvdtor;
                    234: 
                    235: /* Non-zero means warn when a function is declared extern and later inline.  */
                    236: extern int warn_extern_inline;
                    237: 
                    238: /* Nonzero means do some things the same way PCC does.  */
                    239: 
                    240: extern int flag_traditional;
                    241: 
                    242: /* Nonzero means to treat bitfields as unsigned unless they say `signed'.  */
                    243: 
                    244: extern int flag_signed_bitfields;
                    245: 
                    246: /* 3 means write out only virtuals function tables `defined'
                    247:    in this implementation file.
                    248:    2 means write out only specific virtual function tables
                    249:    and give them (C) public access.
                    250:    1 means write out virtual function tables and give them
                    251:    (C) public access.
                    252:    0 means write out virtual function tables and give them
                    253:    (C) static access (default).
                    254:    -1 means declare virtual function tables extern.  */
                    255: 
                    256: extern int write_virtuals;
                    257: 
                    258: /* True for more efficient but incompatible (not not fully tested)
                    259:    vtable implementation (using thunks).
                    260:    0 is old behavior; 1 is new behavior. */
                    261: extern int flag_vtable_thunks;
                    262: 
                    263: /* INTERFACE_ONLY nonzero means that we are in an "interface"
                    264:    section of the compiler.  INTERFACE_UNKNOWN nonzero means
                    265:    we cannot trust the value of INTERFACE_ONLY.  If INTERFACE_UNKNOWN
                    266:    is zero and INTERFACE_ONLY is zero, it means that we are responsible
                    267:    for exporting definitions that others might need.  */
                    268: extern int interface_only, interface_unknown;
                    269: 
                    270: /* Nonzero means we should attempt to elide constructors when possible.  */
                    271: 
                    272: extern int flag_elide_constructors;
                    273: 
                    274: /* Nonzero means handle things in ANSI, instead of GNU fashion.  */
                    275: 
                    276: extern int flag_ansi;
                    277: 
                    278: /* Nonzero means recognize and handle ansi-style exception handling
                    279:    constructs.  */
                    280: 
                    281: extern int flag_handle_exceptions;
                    282: 
                    283: /* Nonzero means recognize and handle signature language constructs.  */
                    284: 
                    285: extern int flag_handle_signatures;
                    286: 
                    287: /* Nonzero means that member functions defined in class scope are
                    288:    inline by default.  */
                    289: 
                    290: extern int flag_default_inline;
                    291: 
                    292: /* Nonzero means emit cadillac protocol.  */
                    293: 
                    294: extern int flag_cadillac;
                    295: 
                    296: /* C++ language-specific tree codes.  */
                    297: #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) SYM,
                    298: enum cplus_tree_code {
                    299:   __DUMMY = LAST_AND_UNUSED_TREE_CODE,
                    300: #include "tree.def"
                    301:   LAST_CPLUS_TREE_CODE
                    302: };
                    303: #undef DEFTREECODE
                    304: 
                    305: /* Override OFFSET_REFs from the back-end, as we want our very own. */
                    306: /* Allow complex pointer to members to work correctly. */
                    307: #define OFFSET_REF CP_OFFSET_REF
                    308: 
                    309: enum languages { lang_c, lang_cplusplus };
                    310: 
                    311: /* Macros to make error reporting functions' lives easier.  */
                    312: #define TYPE_IDENTIFIER(NODE) (DECL_NAME (TYPE_NAME (NODE)))
                    313: #define TYPE_NAME_STRING(NODE) (IDENTIFIER_POINTER (TYPE_IDENTIFIER (NODE)))
                    314: #define TYPE_NAME_LENGTH(NODE) (IDENTIFIER_LENGTH (TYPE_IDENTIFIER (NODE)))
                    315: 
                    316: #define TYPE_ASSEMBLER_NAME_STRING(NODE) (IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (TYPE_NAME  (NODE))))
                    317: #define TYPE_ASSEMBLER_NAME_LENGTH(NODE) (IDENTIFIER_LENGTH (DECL_ASSEMBLER_NAME (TYPE_NAME (NODE))))
                    318: 
                    319: /* The _DECL for this _TYPE.  */
                    320: #define TYPE_MAIN_DECL(NODE) (TYPE_NAME (NODE))
                    321: 
                    322: #define IS_AGGR_TYPE(t)                (TYPE_LANG_FLAG_5 (t))
                    323: #define IS_AGGR_TYPE_CODE(t)   (t == RECORD_TYPE || t == UNION_TYPE || t == UNINSTANTIATED_P_TYPE)
                    324: #define IS_AGGR_TYPE_2(TYPE1,TYPE2) \
                    325:   (TREE_CODE (TYPE1) == TREE_CODE (TYPE2)      \
                    326:    && IS_AGGR_TYPE (TYPE1)&IS_AGGR_TYPE (TYPE2))
                    327: #define IS_OVERLOAD_TYPE_CODE(t) (IS_AGGR_TYPE_CODE (t) || t == ENUMERAL_TYPE)
                    328: #define IS_OVERLOAD_TYPE(t) (IS_OVERLOAD_TYPE_CODE (TREE_CODE (t)))
                    329: 
                    330: /* In a *_TYPE, nonzero means a built-in type.  */
                    331: #define TYPE_BUILT_IN(NODE) TYPE_LANG_FLAG_6(NODE)
                    332: 
                    333: /* Macros which might want to be replaced by function calls.  */
                    334: 
                    335: #define DELTA_FROM_VTABLE_ENTRY(ENTRY) \
                    336:   (!flag_vtable_thunks ? \
                    337:      TREE_VALUE (CONSTRUCTOR_ELTS (ENTRY)) \
                    338:    : TREE_CODE (TREE_OPERAND ((ENTRY), 0)) != THUNK_DECL ? integer_zero_node \
                    339:    : build_int_2 (THUNK_DELTA (TREE_OPERAND ((ENTRY), 0)), 0))
                    340: #if 1
                    341: /* Virtual function addresses can be gotten from a virtual function
                    342:    table entry using this macro.  */
                    343: #define FNADDR_FROM_VTABLE_ENTRY(ENTRY) \
                    344:   (!flag_vtable_thunks ? \
                    345:      TREE_VALUE (TREE_CHAIN (TREE_CHAIN (CONSTRUCTOR_ELTS (ENTRY)))) \
                    346:    : TREE_CODE (TREE_OPERAND ((ENTRY), 0)) != THUNK_DECL ? (ENTRY) \
                    347:    : DECL_INITIAL (TREE_OPERAND ((ENTRY), 0)))
                    348: #define SET_FNADDR_FROM_VTABLE_ENTRY(ENTRY,VALUE) \
                    349:   (TREE_VALUE (TREE_CHAIN (TREE_CHAIN (CONSTRUCTOR_ELTS (ENTRY)))) = (VALUE))
                    350: #define FUNCTION_ARG_CHAIN(NODE) (TREE_CHAIN (TYPE_ARG_TYPES (TREE_TYPE (NODE))))
                    351: #define PROMOTES_TO_AGGR_TYPE(NODE,CODE)       \
                    352:   (((CODE) == TREE_CODE (NODE)                 \
                    353:        && IS_AGGR_TYPE (TREE_TYPE (NODE)))     \
                    354:    || IS_AGGR_TYPE (NODE))
                    355: 
                    356: #else
                    357: #define FNADDR_FROM_VTABLE_ENTRY(ENTRY) (fnaddr_from_vtable_entry (ENTRY))
                    358: #define SET_FNADDR_FROM_VTABLE_ENTRY(ENTRY,VALUE) \
                    359:   (set_fnaddr_from_vtable_entry (ENTRY, VALUE))
                    360: /* #define TYPE_NAME_STRING(NODE) (type_name_string (NODE)) */
                    361: #define FUNCTION_ARG_CHAIN(NODE) (function_arg_chain (NODE))
                    362: #define PROMOTES_TO_AGGR_TYPE(NODE,CODE) (promotes_to_aggr_type (NODE, CODE))
                    363: /* #define IS_AGGR_TYPE_2(TYPE1, TYPE2) (is_aggr_type_2 (TYPE1, TYPE2)) */
                    364: #endif
                    365: /* Nonzero iff TYPE is uniquely derived from PARENT.  Under MI, PARENT can
                    366:    be an ambiguous base class of TYPE, and this macro will be false.  */
                    367: #define UNIQUELY_DERIVED_FROM_P(PARENT, TYPE) (get_base_distance (PARENT, TYPE, 0, (tree *)0) >= 0)
                    368: #define ACCESSIBLY_DERIVED_FROM_P(PARENT, TYPE) (get_base_distance (PARENT, TYPE, -1, (tree *)0) >= 0)
                    369: #define ACCESSIBLY_UNIQUELY_DERIVED_P(PARENT, TYPE) (get_base_distance (PARENT, TYPE, 1, (tree *)0) >= 0)
                    370: #define DERIVED_FROM_P(PARENT, TYPE) (get_base_distance (PARENT, TYPE, 0, (tree *)0) != -1)
                    371: 
                    372: enum conversion_type { ptr_conv, constptr_conv, int_conv,
                    373:                       real_conv, last_conversion_type };
                    374: 
                    375: /* Statistics show that while the GNU C++ compiler may generate
                    376:    thousands of different types during a compilation run, it
                    377:    generates relatively few (tens) of classtypes.  Because of this,
                    378:    it is not costly to store a generous amount of information
                    379:    in classtype nodes.  This struct must fill out to a multiple of 4 bytes.  */
                    380: struct lang_type
                    381: {
                    382:   struct
                    383:     {
                    384:       unsigned has_type_conversion : 1;
                    385:       unsigned has_int_conversion : 1;
                    386:       unsigned has_float_conversion : 1;
                    387:       unsigned has_init_ref : 1;
                    388:       unsigned gets_init_aggr : 1;
                    389:       unsigned has_assignment : 1;
                    390:       unsigned has_default_ctor : 1;
                    391:       unsigned uses_multiple_inheritance : 1;
                    392: 
                    393:       unsigned has_nonpublic_ctor : 2;
                    394:       unsigned has_nonpublic_assign_ref : 2;
                    395:       unsigned const_needs_init : 1;
                    396:       unsigned ref_needs_init : 1;
                    397:       unsigned has_const_assign_ref : 1;
                    398:       unsigned vtable_needs_writing : 1;
                    399: 
                    400:       unsigned has_assign_ref : 1;
                    401:       unsigned gets_new : 2;
                    402:       unsigned gets_delete : 2;
                    403:       unsigned has_call_overloaded : 1;
                    404:       unsigned has_array_ref_overloaded : 1;
                    405:       unsigned has_arrow_overloaded : 1;
                    406: 
                    407:       unsigned local_typedecls : 1;
                    408:       unsigned interface_only : 1;
                    409:       unsigned interface_unknown : 1;
                    410:       unsigned needs_virtual_reinit : 1;
                    411:       unsigned declared_exception : 1;
                    412:       unsigned declared_class : 1;
                    413:       unsigned being_defined : 1;
                    414:       unsigned redefined : 1;
                    415: 
                    416:       unsigned no_globalize : 1;
                    417:       unsigned marked : 1;
                    418:       unsigned marked2 : 1;
                    419:       unsigned marked3 : 1;
                    420:       unsigned marked4 : 1;
                    421:       unsigned marked5 : 1;
                    422:       unsigned marked6 : 1;
                    423: 
                    424:       unsigned use_template : 2;
                    425:       unsigned debug_requested : 1;
                    426:       unsigned has_method_call_overloaded : 1;
                    427:       unsigned private_attr : 1;
                    428:       unsigned got_semicolon : 1;
                    429:       unsigned ptrmemfunc_flag : 1;
                    430:       unsigned is_signature : 1;
                    431:       unsigned is_signature_pointer : 1;
                    432: 
                    433:       unsigned is_signature_reference : 1;
                    434:       unsigned has_default_implementation : 1;
                    435:       unsigned grokking_typedef : 1;
                    436:       unsigned has_opaque_typedecls : 1;
                    437:       unsigned sigtable_has_been_generated : 1;
                    438:       unsigned was_anonymous : 1;
                    439:       unsigned has_real_assignment : 1;
                    440:       unsigned has_real_assign_ref : 1;
                    441: 
                    442:       unsigned has_const_init_ref : 1;
                    443:       unsigned has_complex_init_ref : 1;
                    444:       unsigned has_complex_assign_ref : 1;
                    445:       unsigned vec_delete_takes_size : 1;
                    446:       unsigned has_abstract_assign_ref : 1;
                    447: 
                    448:       /* The MIPS compiler gets it wrong if this struct also
                    449:         does not fill out to a multiple of 4 bytes.  Add a
                    450:         member `dummy' with new bits if you go over the edge.  */
                    451:       unsigned dummy : 19;
                    452: 
                    453:       unsigned n_vancestors : 16;
                    454:     } type_flags;
                    455: 
                    456:   int cid;
                    457:   int n_ancestors;
                    458:   int vsize;
                    459:   int max_depth;
                    460:   int vfield_parent;
                    461: 
                    462:   union tree_node *vbinfo[2];
                    463:   union tree_node *baselink_vec;
                    464:   union tree_node *vfields;
                    465:   union tree_node *vbases;
                    466:   union tree_node *vbase_size;
                    467: 
                    468:   union tree_node *tags;
                    469:   char *memoized_table_entry;
                    470: 
                    471:   char *search_slot;
                    472: 
                    473: #ifdef ONLY_INT_FIELDS
                    474:   unsigned int mode : 8;
                    475: #else
                    476:   enum machine_mode mode : 8;
                    477: #endif
                    478: 
                    479:   unsigned char size_unit;
                    480:   unsigned char align;
                    481:   unsigned char sep_unit;
                    482: 
                    483:   union tree_node *sep;
                    484:   union tree_node *size;
                    485: 
                    486:   union tree_node *base_init_list;
                    487:   union tree_node *abstract_virtuals;
                    488:   union tree_node *as_list;
                    489:   union tree_node *id_as_list;
                    490:   union tree_node *binfo_as_list;
                    491:   union tree_node *vtbl_ptr;
                    492:   union tree_node *instance_variable;
                    493:   union tree_node *friend_classes;
                    494: 
                    495:   char *mi_matrix;
                    496:   union tree_node *conversions[last_conversion_type];
                    497: 
                    498:   union tree_node *dossier;
                    499: 
                    500:   union tree_node *methods;
                    501: 
                    502:   union tree_node *signature;
                    503:   union tree_node *signature_pointer_to;
                    504:   union tree_node *signature_reference_to;
                    505: 
                    506:   int linenum;
                    507: };
                    508: 
                    509: #define CLASSTYPE_SOURCE_LINE(NODE) (TYPE_LANG_SPECIFIC(NODE)->linenum)
                    510: 
                    511: /* Indicates whether or not (and how) a template was expanded for this class.
                    512:      0=no information yet/non-template class
                    513:      1=implicit template instantiation
                    514:      2=explicit template specialization
                    515:      3=explicit template instantiation  */
                    516: #define CLASSTYPE_USE_TEMPLATE(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.use_template)
                    517: 
                    518: /* Fields used for storing information before the class is defined.
                    519:    After the class is defined, these fields hold other information.  */
                    520: 
                    521: /* List of friends which were defined inline in this class definition.  */
                    522: #define CLASSTYPE_INLINE_FRIENDS(NODE) (TYPE_NONCOPIED_PARTS (NODE))
                    523: 
                    524: /* Nonzero for _CLASSTYPE means that the _CLASSTYPE either has
                    525:    a special meaning for the assignment operator ("operator="),
                    526:    or one of its fields (or base members) has a special meaning
                    527:    defined.  */
                    528: #define TYPE_HAS_ASSIGNMENT(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.has_assignment)
                    529: #define TYPE_HAS_REAL_ASSIGNMENT(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.has_real_assignment)
                    530: 
                    531: /* Nonzero for _CLASSTYPE means that operator new and delete are defined,
                    532:    respectively.  */
                    533: #define TYPE_GETS_NEW(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.gets_new)
                    534: #define TYPE_GETS_DELETE(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.gets_delete)
                    535: #define TYPE_GETS_REG_DELETE(NODE) (TYPE_GETS_DELETE (NODE) & 1)
                    536: 
                    537: /* Nonzero for _CLASSTYPE means that operator vec delete is defined and
                    538:    takes the optional size_t argument.  */
                    539: #define TYPE_VEC_DELETE_TAKES_SIZE(NODE) \
                    540:   (TYPE_LANG_SPECIFIC(NODE)->type_flags.vec_delete_takes_size)
                    541: #define TYPE_VEC_NEW_USES_COOKIE(NODE) \
                    542:   (TYPE_NEEDS_DESTRUCTOR (NODE) \
                    543:    || (TYPE_LANG_SPECIFIC (NODE) && TYPE_VEC_DELETE_TAKES_SIZE (NODE)))
                    544: 
                    545: /* Nonzero for TREE_LIST or _TYPE node means that this node is class-local.  */
                    546: #define TREE_NONLOCAL_FLAG(NODE) (TREE_LANG_FLAG_0 (NODE))
                    547: 
                    548: /* Nonzero for a _CLASSTYPE node which we know to be private.  */
                    549: #define TYPE_PRIVATE_P(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.private_attr)
                    550: 
                    551: /* Nonzero means that this _CLASSTYPE node defines ways of converting
                    552:    itself to other types.  */
                    553: #define TYPE_HAS_CONVERSION(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.has_type_conversion)
                    554: 
                    555: /* Nonzero means that this _CLASSTYPE node can convert itself to an
                    556:    INTEGER_TYPE.  */
                    557: #define TYPE_HAS_INT_CONVERSION(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.has_int_conversion)
                    558: 
                    559: /* Nonzero means that this _CLASSTYPE node can convert itself to an
                    560:    REAL_TYPE.  */
                    561: #define TYPE_HAS_REAL_CONVERSION(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.has_float_conversion)
                    562: 
                    563: /* Nonzero means that this _CLASSTYPE node overloads operator=(X&).  */
                    564: #define TYPE_HAS_ASSIGN_REF(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.has_assign_ref)
                    565: #define TYPE_HAS_CONST_ASSIGN_REF(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.has_const_assign_ref)
                    566: 
                    567: /* Nonzero means that this _CLASSTYPE node has an X(X&) constructor.  */
                    568: #define TYPE_HAS_INIT_REF(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.has_init_ref)
                    569: #define TYPE_HAS_CONST_INIT_REF(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.has_const_init_ref)
                    570: 
                    571: /* Nonzero means that this _CLASSTYPE node has an X(X ...) constructor.
                    572:    Note that there must be other arguments, or this constructor is flagged
                    573:    as being erroneous.  */
                    574: #define TYPE_GETS_INIT_AGGR(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.gets_init_aggr)
                    575: 
                    576: /* Nonzero means that this type is being defined.  I.e., the left brace
                    577:    starting the definition of this type has been seen.  */
                    578: #define TYPE_BEING_DEFINED(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.being_defined)
                    579: /* Nonzero means that this type has been redefined.  In this case, if
                    580:    convenient, don't reprocess any methods that appear in its redefinition.  */
                    581: #define TYPE_REDEFINED(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.redefined)
                    582: 
                    583: /* Nonzero means that this _CLASSTYPE node overloads the method call
                    584:    operator.  In this case, all method calls go through `operator->()(...).  */
                    585: #define TYPE_OVERLOADS_METHOD_CALL_EXPR(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.has_method_call_overloaded)
                    586: 
                    587: /* Nonzero means that this type is a signature.  */
                    588: # define IS_SIGNATURE(NODE) (TYPE_LANG_SPECIFIC(NODE)?TYPE_LANG_SPECIFIC(NODE)->type_flags.is_signature:0)
                    589: # define SET_SIGNATURE(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.is_signature=1)
                    590: # define CLEAR_SIGNATURE(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.is_signature=0)
                    591: 
                    592: /* Nonzero means that this type is a signature pointer type.  */
                    593: # define IS_SIGNATURE_POINTER(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.is_signature_pointer)
                    594: 
                    595: /* Nonzero means that this type is a signature reference type.  */
                    596: # define IS_SIGNATURE_REFERENCE(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.is_signature_reference)
                    597: 
                    598: /* Nonzero means that this signature type has a default implementation.  */
                    599: # define HAS_DEFAULT_IMPLEMENTATION(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.has_default_implementation)
                    600: 
                    601: /* Nonzero means that grokdeclarator works on a signature-local typedef.  */
                    602: #define SIGNATURE_GROKKING_TYPEDEF(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.grokking_typedef)
                    603: 
                    604: /* Nonzero means that this signature contains opaque type declarations.  */
                    605: #define SIGNATURE_HAS_OPAQUE_TYPEDECLS(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.has_opaque_typedecls)
                    606: 
                    607: /* Nonzero means that a signature table has been generated
                    608:    for this signature.  */
                    609: #define SIGTABLE_HAS_BEEN_GENERATED(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.sigtable_has_been_generated)
                    610: 
                    611: /* If NODE is a class, this is the signature type that contains NODE's
                    612:    signature after it has been computed using sigof().  */
                    613: #define CLASSTYPE_SIGNATURE(NODE) (TYPE_LANG_SPECIFIC(NODE)->signature)
                    614: 
                    615: /* If NODE is a signature pointer or signature reference, this is the
                    616:    signature type the pointer/reference points to.  */
                    617: #define SIGNATURE_TYPE(NODE) (TYPE_LANG_SPECIFIC(NODE)->signature)
                    618: 
                    619: /* If NODE is a signature, this is a vector of all methods defined
                    620:    in the signature or in its base types together with their default
                    621:    implementations.  */
                    622: #define SIGNATURE_METHOD_VEC(NODE) (TYPE_LANG_SPECIFIC(NODE)->signature)
                    623: 
                    624: /* If NODE is a signature, this is the _TYPE node that contains NODE's
                    625:    signature pointer type.  */
                    626: #define SIGNATURE_POINTER_TO(NODE) (TYPE_LANG_SPECIFIC(NODE)->signature_pointer_to)
                    627: 
                    628: /* If NODE is a signature, this is the _TYPE node that contains NODE's
                    629:    signature reference type.  */
                    630: #define SIGNATURE_REFERENCE_TO(NODE) (TYPE_LANG_SPECIFIC(NODE)->signature_reference_to)
                    631: 
                    632: /* The is the VAR_DECL that contains NODE's dossier.  */
                    633: #define CLASSTYPE_DOSSIER(NODE) (TYPE_LANG_SPECIFIC(NODE)->dossier)
                    634: 
                    635: /* List of all explicit methods (chained using DECL_NEXT_METHOD),
                    636:    in order they were parsed. */
                    637: #define CLASSTYPE_METHODS(NODE) (TYPE_LANG_SPECIFIC(NODE)->methods)
                    638: 
                    639: /* Nonzero means that this _CLASSTYPE node overloads operator().  */
                    640: #define TYPE_OVERLOADS_CALL_EXPR(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.has_call_overloaded)
                    641: 
                    642: /* Nonzero means that this _CLASSTYPE node overloads operator[].  */
                    643: #define TYPE_OVERLOADS_ARRAY_REF(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.has_array_ref_overloaded)
                    644: 
                    645: /* Nonzero means that this _CLASSTYPE node overloads operator->.  */
                    646: #define TYPE_OVERLOADS_ARROW(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.has_arrow_overloaded)
                    647: 
                    648: /* Nonzero means that this _CLASSTYPE (or one of its ancestors) uses
                    649:    multiple inheritance.  If this is 0 for the root of a type
                    650:    hierarchy, then we can use more efficient search techniques.  */
                    651: #define TYPE_USES_MULTIPLE_INHERITANCE(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.uses_multiple_inheritance)
                    652: 
                    653: /* Nonzero means that this _CLASSTYPE (or one of its ancestors) uses
                    654:    virtual base classes.  If this is 0 for the root of a type
                    655:    hierarchy, then we can use more efficient search techniques.  */
                    656: #define TYPE_USES_VIRTUAL_BASECLASSES(NODE) (TREE_LANG_FLAG_3(NODE))
                    657: 
                    658: /* List of lists of member functions defined in this class.  */
                    659: #define CLASSTYPE_METHOD_VEC(NODE) TYPE_METHODS(NODE)
                    660: 
                    661: /* Pointer from any member function to the head of the list of
                    662:    member functions of the type that member function belongs to.  */
                    663: #define CLASSTYPE_BASELINK_VEC(NODE) (TYPE_LANG_SPECIFIC(NODE)->baselink_vec)
                    664: 
                    665: /* Mark bits for depth-first and breath-first searches.  */
                    666: #define CLASSTYPE_MARKED(NODE)  (TYPE_LANG_SPECIFIC(NODE)->type_flags.marked)
                    667: #define CLASSTYPE_MARKED2(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.marked2)
                    668: #define CLASSTYPE_MARKED3(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.marked3)
                    669: #define CLASSTYPE_MARKED4(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.marked4)
                    670: #define CLASSTYPE_MARKED5(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.marked5)
                    671: #define CLASSTYPE_MARKED6(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.marked6)
                    672: /* Macros to modify the above flags */
                    673: #define SET_CLASSTYPE_MARKED(NODE)     (CLASSTYPE_MARKED(NODE) = 1)
                    674: #define CLEAR_CLASSTYPE_MARKED(NODE)   (CLASSTYPE_MARKED(NODE) = 0)
                    675: #define SET_CLASSTYPE_MARKED2(NODE)    (CLASSTYPE_MARKED2(NODE) = 1)
                    676: #define CLEAR_CLASSTYPE_MARKED2(NODE)  (CLASSTYPE_MARKED2(NODE) = 0)
                    677: #define SET_CLASSTYPE_MARKED3(NODE)    (CLASSTYPE_MARKED3(NODE) = 1)
                    678: #define CLEAR_CLASSTYPE_MARKED3(NODE)  (CLASSTYPE_MARKED3(NODE) = 0)
                    679: #define SET_CLASSTYPE_MARKED4(NODE)    (CLASSTYPE_MARKED4(NODE) = 1)
                    680: #define CLEAR_CLASSTYPE_MARKED4(NODE)  (CLASSTYPE_MARKED4(NODE) = 0)
                    681: #define SET_CLASSTYPE_MARKED5(NODE)    (CLASSTYPE_MARKED5(NODE) = 1)
                    682: #define CLEAR_CLASSTYPE_MARKED5(NODE)  (CLASSTYPE_MARKED5(NODE) = 0)
                    683: #define SET_CLASSTYPE_MARKED6(NODE)    (CLASSTYPE_MARKED6(NODE) = 1)
                    684: #define CLEAR_CLASSTYPE_MARKED6(NODE)  (CLASSTYPE_MARKED6(NODE) = 0)
                    685: 
                    686: #define CLASSTYPE_TAGS(NODE)           (TYPE_LANG_SPECIFIC(NODE)->tags)
                    687: 
                    688: /* If this class has any bases, this is the number of the base class from
                    689:    which our VFIELD is based, -1 otherwise.  If this class has no base
                    690:    classes, this is not used.
                    691:    In D : B1, B2, PARENT would be 0, if D's vtable came from B1,
                    692:    1, if D's vtable came from B2. */
                    693: #define CLASSTYPE_VFIELD_PARENT(NODE)  (TYPE_LANG_SPECIFIC(NODE)->vfield_parent)
                    694: 
                    695: /* Remove when done merging.  */
                    696: #define CLASSTYPE_VFIELD(NODE) TYPE_VFIELD(NODE)
                    697: 
                    698: /* The number of virtual functions defined for this
                    699:    _CLASSTYPE node.  */
                    700: #define CLASSTYPE_VSIZE(NODE) (TYPE_LANG_SPECIFIC(NODE)->vsize)
                    701: /* The virtual base classes that this type uses.  */
                    702: #define CLASSTYPE_VBASECLASSES(NODE) (TYPE_LANG_SPECIFIC(NODE)->vbases)
                    703: /* The virtual function pointer fields that this type contains.  */
                    704: #define CLASSTYPE_VFIELDS(NODE) (TYPE_LANG_SPECIFIC(NODE)->vfields)
                    705: 
                    706: /* Number of baseclasses defined for this type.
                    707:    0 means no base classes.  */
                    708: #define CLASSTYPE_N_BASECLASSES(NODE) \
                    709:   (TYPE_BINFO_BASETYPES (NODE) ? TREE_VEC_LENGTH (TYPE_BINFO_BASETYPES(NODE)) : 0)
                    710: 
                    711: /* Memoize the number of super classes (base classes) tha this node
                    712:    has.  That way we can know immediately (albeit conservatively how
                    713:    large a multiple-inheritance matrix we need to build to find
                    714:    derivation information.  */
                    715: #define CLASSTYPE_N_SUPERCLASSES(NODE) (TYPE_LANG_SPECIFIC(NODE)->n_ancestors)
                    716: #define CLASSTYPE_N_VBASECLASSES(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.n_vancestors)
                    717: 
                    718: /* Record how deep the inheritance is for this class so `void*' conversions
                    719:    are less favorable than a conversion to the most base type.  */
                    720: #define CLASSTYPE_MAX_DEPTH(NODE) (TYPE_LANG_SPECIFIC(NODE)->max_depth)
                    721: 
                    722: /* Used for keeping search-specific information.  Any search routine
                    723:    which uses this must define what exactly this slot is used for.  */
                    724: #define CLASSTYPE_SEARCH_SLOT(NODE) (TYPE_LANG_SPECIFIC(NODE)->search_slot)
                    725: 
                    726: /* Entry for keeping memoization tables for this type to
                    727:    hopefully speed up search routines.  Since it is a pointer,
                    728:    it can mean almost anything.  */
                    729: #define CLASSTYPE_MTABLE_ENTRY(NODE) (TYPE_LANG_SPECIFIC(NODE)->memoized_table_entry)
                    730: 
                    731: /* This is the total size of the baseclasses defined for this type.
                    732:    Needed because it is desirable to layout such information
                    733:    before beginning to process the class itself, and we
                    734:    don't want to compute it second time when actually laying
                    735:    out the type for real.  */
                    736: #define CLASSTYPE_SIZE(NODE) (TYPE_LANG_SPECIFIC(NODE)->size)
                    737: #define CLASSTYPE_SIZE_UNIT(NODE) (TYPE_LANG_SPECIFIC(NODE)->size_unit)
                    738: #define CLASSTYPE_MODE(NODE) (TYPE_LANG_SPECIFIC(NODE)->mode)
                    739: #define CLASSTYPE_ALIGN(NODE) (TYPE_LANG_SPECIFIC(NODE)->align)
                    740: 
                    741: /* This is the space needed for virtual base classes.  NULL if
                    742:    there are no virtual basetypes.  */
                    743: #define CLASSTYPE_VBASE_SIZE(NODE) (TYPE_LANG_SPECIFIC(NODE)->vbase_size)
                    744: 
                    745: /* A cons list of structure elements which either have constructors
                    746:    to be called, or virtual function table pointers which
                    747:    need initializing.  Depending on what is being initialized,
                    748:    the TREE_PURPOSE and TREE_VALUE fields have different meanings:
                    749: 
                    750:    Member initialization: <FIELD_DECL, TYPE>
                    751:    Base class construction: <NULL_TREE, BASETYPE>
                    752:    Base class initialization: <BASE_INITIALIZATION, THESE_INITIALIZATIONS>
                    753:    Whole type: <MEMBER_INIT, BASE_INIT>.  */
                    754: #define CLASSTYPE_BASE_INIT_LIST(NODE) (TYPE_LANG_SPECIFIC(NODE)->base_init_list)
                    755: 
                    756: /* A cons list of virtual functions which cannot be inherited by
                    757:    derived classes.  When deriving from this type, the derived
                    758:    class must provide its own definition for each of these functions.  */
                    759: #define CLASSTYPE_ABSTRACT_VIRTUALS(NODE) (TYPE_LANG_SPECIFIC(NODE)->abstract_virtuals)
                    760: 
                    761: /* Nonzero means that this aggr type has been `closed' by a semicolon.  */
                    762: #define CLASSTYPE_GOT_SEMICOLON(NODE) (TYPE_LANG_SPECIFIC (NODE)->type_flags.got_semicolon)
                    763: 
                    764: /* Nonzero means that the main virtual function table pointer needs to be
                    765:    set because base constructors have placed the wrong value there.
                    766:    If this is zero, it means that they placed the right value there,
                    767:    and there is no need to change it.  */
                    768: #define CLASSTYPE_NEEDS_VIRTUAL_REINIT(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.needs_virtual_reinit)
                    769: 
                    770: /* Nonzero means that if this type has virtual functions, that
                    771:    the virtual function table will be written out.  */
                    772: #define CLASSTYPE_VTABLE_NEEDS_WRITING(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.vtable_needs_writing)
                    773: 
                    774: /* Nonzero means that this type defines its own local type declarations.  */
                    775: #define CLASSTYPE_LOCAL_TYPEDECLS(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.local_typedecls)
                    776: 
                    777: /* Nonzero means that this type has an X() constructor.  */
                    778: #define TYPE_HAS_DEFAULT_CONSTRUCTOR(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.has_default_ctor)
                    779: 
                    780: /* Nonzero means the type declared a ctor as private or protected.  We
                    781:    use this to make sure we don't try to generate a copy ctor for a 
                    782:    class that has a member of type NODE.  */
                    783: #define TYPE_HAS_NONPUBLIC_CTOR(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.has_nonpublic_ctor)
                    784: 
                    785: /* Ditto, for operator=.  */
                    786: #define TYPE_HAS_NONPUBLIC_ASSIGN_REF(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.has_nonpublic_assign_ref)
                    787: 
                    788: /* Many routines need to cons up a list of basetypes for access
                    789:    checking.  This field contains a TREE_LIST node whose TREE_VALUE
                    790:    is the main variant of the type, and whose TREE_VIA_PUBLIC
                    791:    and TREE_VIA_VIRTUAL bits are correctly set.  */
                    792: #define CLASSTYPE_AS_LIST(NODE) (TYPE_LANG_SPECIFIC(NODE)->as_list)
                    793: /* Same, but cache a list whose value is the name of this type.  */
                    794: #define CLASSTYPE_ID_AS_LIST(NODE) (TYPE_LANG_SPECIFIC(NODE)->id_as_list)
                    795: /* Same, but cache a list whose value is the binfo of this type.  */
                    796: #define CLASSTYPE_BINFO_AS_LIST(NODE) (TYPE_LANG_SPECIFIC(NODE)->binfo_as_list)
                    797: 
                    798: /* Slot in which to cache a copy of the local vtable pointer.  */
                    799: #define CLASSTYPE_VTBL_PTR(NODE) (TYPE_LANG_SPECIFIC(NODE)->vtbl_ptr)
                    800: 
                    801: /* Hold the instance object associated with this method.  */
                    802: #define CLASSTYPE_INST_VAR(NODE) (TYPE_LANG_SPECIFIC(NODE)->instance_variable)
                    803: 
                    804: /* A list of class types with which this type is a friend.  */
                    805: #define CLASSTYPE_FRIEND_CLASSES(NODE) (TYPE_LANG_SPECIFIC(NODE)->friend_classes)
                    806: 
                    807: /* Keep an inheritance lattice around so we can quickly tell whether
                    808:    a type is derived from another or not.  */
                    809: #define CLASSTYPE_MI_MATRIX(NODE) (TYPE_LANG_SPECIFIC(NODE)->mi_matrix)
                    810: 
                    811: /* If there is exactly one conversion to a non-void, non-const pointer type,
                    812:    remember that here.  If there are more than one, put
                    813:    `error_mark_node' here.  If there are none, this holds NULL_TREE.  */
                    814: #define CLASSTYPE_CONVERSION(NODE,KIND) \
                    815:   (TYPE_LANG_SPECIFIC(NODE)->conversions[(int) KIND])
                    816: 
                    817: /* Say whether this node was declared as a "class" or a "struct".  */
                    818: #define CLASSTYPE_DECLARED_CLASS(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.declared_class)
                    819: /* Say whether this node was declared as a "class" or a "struct".  */
                    820: #define CLASSTYPE_DECLARED_EXCEPTION(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.declared_exception)
                    821: /* whether this can be globalized.  */
                    822: #define CLASSTYPE_NO_GLOBALIZE(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.no_globalize)
                    823: 
                    824: /* Nonzero if this class has const members which have no specified initialization.  */
                    825: #define CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.const_needs_init)
                    826: 
                    827: /* Nonzero if this class has ref members which have no specified initialization.  */
                    828: #define CLASSTYPE_REF_FIELDS_NEED_INIT(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.ref_needs_init)
                    829: 
                    830: /* Nonzero if this class is included from a header file which employs
                    831:    `#pragma interface', and it is not included in its implementation file.  */
                    832: #define CLASSTYPE_INTERFACE_ONLY(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.interface_only)
                    833: 
                    834: /* Same as above, but for classes whose purpose we do not know.  */
                    835: #define CLASSTYPE_INTERFACE_UNKNOWN(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.interface_unknown)
                    836: #define CLASSTYPE_INTERFACE_KNOWN(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.interface_unknown == 0)
                    837: #define SET_CLASSTYPE_INTERFACE_UNKNOWN_X(NODE,X) (TYPE_LANG_SPECIFIC(NODE)->type_flags.interface_unknown = !!(X))
                    838: #define SET_CLASSTYPE_INTERFACE_UNKNOWN(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.interface_unknown = 1)
                    839: #define SET_CLASSTYPE_INTERFACE_KNOWN(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.interface_unknown = 0)
                    840: 
                    841: /* Nonzero if a _DECL node requires us to output debug info for this class.  */
                    842: #define CLASSTYPE_DEBUG_REQUESTED(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.debug_requested)
                    843: 
                    844: /* Additional macros for inheritance information.  */
                    845: 
                    846: #define CLASSTYPE_VBINFO(NODE,VIA_PUBLIC) \
                    847:   (TYPE_LANG_SPECIFIC (NODE)->vbinfo[VIA_PUBLIC])
                    848: 
                    849: /* When following an binfo-specific chain, this is the cumulative
                    850:    via-public flag.  */
                    851: #define BINFO_VIA_PUBLIC(NODE) TREE_LANG_FLAG_5 (NODE)
                    852: 
                    853: /* When building a matrix to determine by a single lookup
                    854:    whether one class is derived from another or not,
                    855:    this field is the index of the class in the table.  */
                    856: #define CLASSTYPE_CID(NODE) (TYPE_LANG_SPECIFIC(NODE)->cid)
                    857: #define BINFO_CID(NODE) CLASSTYPE_CID(BINFO_TYPE(NODE))
                    858: 
                    859: /* Nonzero means marked by DFS or BFS search, including searches
                    860:    by `get_binfo' and `get_base_distance'.  */
                    861: #define BINFO_MARKED(NODE) (TREE_VIA_VIRTUAL(NODE)?CLASSTYPE_MARKED(BINFO_TYPE(NODE)):TREE_LANG_FLAG_0(NODE))
                    862: /* Macros needed because of C compilers that don't allow conditional
                    863:    expressions to be lvalues.  Grr!  */
                    864: #define SET_BINFO_MARKED(NODE) (TREE_VIA_VIRTUAL(NODE)?SET_CLASSTYPE_MARKED(BINFO_TYPE(NODE)):(TREE_LANG_FLAG_0(NODE)=1))
                    865: #define CLEAR_BINFO_MARKED(NODE) (TREE_VIA_VIRTUAL(NODE)?CLEAR_CLASSTYPE_MARKED(BINFO_TYPE(NODE)):(TREE_LANG_FLAG_0(NODE)=0))
                    866: 
                    867: /* Nonzero means marked in building initialization list.  */
                    868: #define BINFO_BASEINIT_MARKED(NODE) CLASSTYPE_MARKED2 (BINFO_TYPE (NODE))
                    869: /* Modifier macros */
                    870: #define SET_BINFO_BASEINIT_MARKED(NODE) SET_CLASSTYPE_MARKED2 (BINFO_TYPE (NODE))
                    871: #define CLEAR_BINFO_BASEINIT_MARKED(NODE) CLEAR_CLASSTYPE_MARKED2 (BINFO_TYPE (NODE))
                    872: 
                    873: /* Nonzero means marked in search through virtual inheritance hierarchy.  */
                    874: #define BINFO_VBASE_MARKED(NODE) CLASSTYPE_MARKED2 (BINFO_TYPE (NODE))
                    875: /* Modifier macros */
                    876: #define SET_BINFO_VBASE_MARKED(NODE) SET_CLASSTYPE_MARKED2 (BINFO_TYPE (NODE))
                    877: #define CLEAR_BINFO_VBASE_MARKED(NODE) CLEAR_CLASSTYPE_MARKED2 (BINFO_TYPE (NODE))
                    878: 
                    879: /* Nonzero means marked in search for members or member functions.  */
                    880: #define BINFO_FIELDS_MARKED(NODE) \
                    881:   (TREE_VIA_VIRTUAL(NODE)?CLASSTYPE_MARKED2 (BINFO_TYPE (NODE)):TREE_LANG_FLAG_2(NODE))
                    882: #define SET_BINFO_FIELDS_MARKED(NODE) (TREE_VIA_VIRTUAL(NODE)?SET_CLASSTYPE_MARKED2(BINFO_TYPE(NODE)):(TREE_LANG_FLAG_2(NODE)=1))
                    883: #define CLEAR_BINFO_FIELDS_MARKED(NODE) (TREE_VIA_VIRTUAL(NODE)?CLEAR_CLASSTYPE_MARKED2(BINFO_TYPE(NODE)):(TREE_LANG_FLAG_2(NODE)=0))
                    884: 
                    885: /* Nonzero means that this class is on a path leading to a new vtable.  */
                    886: #define BINFO_VTABLE_PATH_MARKED(NODE) \
                    887:   (TREE_VIA_VIRTUAL(NODE)?CLASSTYPE_MARKED3(BINFO_TYPE(NODE)):TREE_LANG_FLAG_3(NODE))
                    888: #define SET_BINFO_VTABLE_PATH_MARKED(NODE) (TREE_VIA_VIRTUAL(NODE)?SET_CLASSTYPE_MARKED3(BINFO_TYPE(NODE)):(TREE_LANG_FLAG_3(NODE)=1))
                    889: #define CLEAR_BINFO_VTABLE_PATH_MARKED(NODE) (TREE_VIA_VIRTUAL(NODE)?CLEAR_CLASSTYPE_MARKED3(BINFO_TYPE(NODE)):(TREE_LANG_FLAG_3(NODE)=0))
                    890: 
                    891: /* Nonzero means that this class has a new vtable.  */
                    892: #define BINFO_NEW_VTABLE_MARKED(NODE) \
                    893:   (TREE_VIA_VIRTUAL(NODE)?CLASSTYPE_MARKED4(BINFO_TYPE(NODE)):TREE_LANG_FLAG_4(NODE))
                    894: #define SET_BINFO_NEW_VTABLE_MARKED(NODE) (TREE_VIA_VIRTUAL(NODE)?SET_CLASSTYPE_MARKED4(BINFO_TYPE(NODE)):(TREE_LANG_FLAG_4(NODE)=1))
                    895: #define CLEAR_BINFO_NEW_VTABLE_MARKED(NODE) (TREE_VIA_VIRTUAL(NODE)?CLEAR_CLASSTYPE_MARKED4(BINFO_TYPE(NODE)):(TREE_LANG_FLAG_4(NODE)=0))
                    896: 
                    897: /* Nonzero means this class has initialized its virtual baseclasses.  */
                    898: #define BINFO_VBASE_INIT_MARKED(NODE) \
                    899:   (TREE_VIA_VIRTUAL(NODE)?CLASSTYPE_MARKED5(BINFO_TYPE(NODE)):TREE_LANG_FLAG_5(NODE))
                    900: #define SET_BINFO_VBASE_INIT_MARKED(NODE) (TREE_VIA_VIRTUAL(NODE)?SET_CLASSTYPE_MARKED5(BINFO_TYPE(NODE)):(TREE_LANG_FLAG_5(NODE)=1))
                    901: #define CLEAR_BINFO_VBASE_INIT_MARKED(NODE) (TREE_VIA_VIRTUAL(NODE)?CLEAR_CLASSTYPE_MARKED5(BINFO_TYPE(NODE)):(TREE_LANG_FLAG_5(NODE)=0))
                    902: 
                    903: /* Accessor macros for the vfield slots in structures.  */
                    904: 
                    905: /* Get the assoc info that caused this vfield to exist.  */
                    906: #define VF_BINFO_VALUE(NODE) TREE_PURPOSE (NODE)
                    907: 
                    908: /* Get that same information as a _TYPE.  */
                    909: #define VF_BASETYPE_VALUE(NODE) TREE_VALUE (NODE)
                    910: 
                    911: /* Get the value of the top-most type dominating the non-`normal' vfields.  */
                    912: #define VF_DERIVED_VALUE(NODE) (VF_BINFO_VALUE (NODE) ? BINFO_TYPE (VF_BINFO_VALUE (NODE)) : NULL_TREE)
                    913: 
                    914: /* Get the value of the top-most type that's `normal' for the vfield.  */
                    915: #define VF_NORMAL_VALUE(NODE) TREE_TYPE (NODE)
                    916: 
                    917: /* Nonzero for TREE_LIST node means that this list of things
                    918:    is a list of parameters, as opposed to a list of expressions.  */
                    919: #define TREE_PARMLIST(NODE) ((NODE)->common.unsigned_flag) /* overloaded! */
                    920: 
                    921: /* For FUNCTION_TYPE or METHOD_TYPE, a list of the exceptions that
                    922:    this type can raise.  */
                    923: #define TYPE_RAISES_EXCEPTIONS(NODE) TYPE_NONCOPIED_PARTS (NODE)
                    924: 
                    925: struct lang_decl_flags
                    926: {
                    927: #ifdef ONLY_INT_FIELDS
                    928:   int language : 8;
                    929: #else
                    930:   enum languages language : 8;
                    931: #endif
                    932: 
                    933:   unsigned operator_attr : 1;
                    934:   unsigned constructor_attr : 1;
                    935:   unsigned returns_first_arg : 1;
                    936:   unsigned preserves_first_arg : 1;
                    937:   unsigned friend_attr : 1;
                    938:   unsigned static_function : 1;
                    939:   unsigned const_memfunc : 1;
                    940:   unsigned volatile_memfunc : 1;
                    941: 
                    942:   unsigned abstract_virtual : 1;
                    943:   unsigned permanent_attr : 1 ;
                    944:   unsigned constructor_for_vbase_attr : 1;
                    945:   unsigned mutable_flag : 1;
                    946:   unsigned is_default_implementation : 1;
                    947:   unsigned saved_inline : 1;
                    948:   unsigned use_template : 2;
                    949: 
                    950:   unsigned dummy : 8;
                    951: 
                    952:   tree access;
                    953:   tree context;
                    954:   tree memfunc_pointer_to;
                    955: };
                    956: 
                    957: struct lang_decl
                    958: {
                    959:   struct lang_decl_flags decl_flags;
                    960: 
                    961:   struct template_info *template_info;
                    962:   tree main_decl_variant;
                    963:   struct pending_inline *pending_inline_info;
                    964:   tree next_method;
                    965:   tree chain;
                    966: };
                    967: 
                    968: /* Non-zero if NODE is a _DECL with TREE_READONLY set.  */
                    969: #define TREE_READONLY_DECL_P(NODE) \
                    970:   (TREE_READONLY (NODE) && TREE_CODE_CLASS (TREE_CODE (NODE)) == 'd')
                    971: 
                    972: /* For FUNCTION_DECLs: return the language in which this decl
                    973:    was declared.  */
                    974: #define DECL_LANGUAGE(NODE) (DECL_LANG_SPECIFIC(NODE)->decl_flags.language)
                    975: 
                    976: /* For FUNCTION_DECLs: nonzero means that this function is a constructor.  */
                    977: #define DECL_CONSTRUCTOR_P(NODE) (DECL_LANG_SPECIFIC(NODE)->decl_flags.constructor_attr)
                    978: /* For FUNCTION_DECLs: nonzero means that this function is a constructor
                    979:    for an object with virtual baseclasses.  */
                    980: #define DECL_CONSTRUCTOR_FOR_VBASE_P(NODE) (DECL_LANG_SPECIFIC(NODE)->decl_flags.constructor_for_vbase_attr)
                    981: 
                    982: /* For FUNCTION_DECLs: nonzero means that this function is a default
                    983:    implementation of a signature method.  */
                    984: #define IS_DEFAULT_IMPLEMENTATION(NODE) (DECL_LANG_SPECIFIC(NODE)->decl_flags.is_default_implementation)
                    985: 
                    986: /* For FUNCTION_DECLs: nonzero means that the constructor
                    987:    is known to return a non-zero `this' unchanged.  */
                    988: #define DECL_RETURNS_FIRST_ARG(NODE) (DECL_LANG_SPECIFIC(NODE)->decl_flags.returns_first_arg)
                    989: 
                    990: /* Nonzero for FUNCTION_DECL means that this constructor is known to
                    991:    not make any assignment to `this', and therefore can be trusted
                    992:    to return it unchanged.  Otherwise, we must re-assign `current_class_decl'
                    993:    after performing base initializations.  */
                    994: #define DECL_PRESERVES_THIS(NODE) (DECL_LANG_SPECIFIC(NODE)->decl_flags.preserves_first_arg)
                    995: 
                    996: /* Nonzero for _DECL means that this decl appears in (or will appear
                    997:    in) as a member in a RECORD_TYPE or UNION_TYPE node.  It is also for
                    998:    detecting circularity in case members are multiply defined.  In the
                    999:    case of a VAR_DECL, it is also used to determine how program storage
                   1000:    should be allocated.  */
                   1001: #define DECL_IN_AGGR_P(NODE) (DECL_LANG_FLAG_3(NODE))
                   1002: 
                   1003: /* Nonzero for FUNCTION_DECL means that this decl is just a
                   1004:    friend declaration, and should not be added to the list of
                   1005:    member functions for this class.  */
                   1006: #define DECL_FRIEND_P(NODE) (DECL_LANG_SPECIFIC(NODE)->decl_flags.friend_attr)
                   1007: 
                   1008: /* Nonzero for FUNCTION_DECL means that this decl is a static
                   1009:    member function.  */
                   1010: #define DECL_STATIC_FUNCTION_P(NODE) (DECL_LANG_SPECIFIC(NODE)->decl_flags.static_function)
                   1011: 
                   1012: /* Nonzero for a class member means that it is shared between all objects
                   1013:    of that class.  */
                   1014: #define SHARED_MEMBER_P(NODE) \
                   1015:   (TREE_CODE (NODE) == VAR_DECL || TREE_CODE (NODE) == TYPE_DECL \
                   1016:    || TREE_CODE (NODE) == CONST_DECL)
                   1017:                                
                   1018: /* Nonzero for FUNCTION_DECL means that this decl is a member function
                   1019:    (static or non-static).  */
                   1020: #define DECL_FUNCTION_MEMBER_P(NODE) \
                   1021:  (TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE || DECL_STATIC_FUNCTION_P (NODE))
                   1022: 
                   1023: /* Nonzero for FUNCTION_DECL means that this member function
                   1024:    has `this' as const X *const.  */
                   1025: #define DECL_CONST_MEMFUNC_P(NODE) (DECL_LANG_SPECIFIC(NODE)->decl_flags.const_memfunc)
                   1026: 
                   1027: /* Nonzero for FUNCTION_DECL means that this member function
                   1028:    has `this' as volatile X *const.  */
                   1029: #define DECL_VOLATILE_MEMFUNC_P(NODE) (DECL_LANG_SPECIFIC(NODE)->decl_flags.volatile_memfunc)
                   1030: 
                   1031: /* Nonzero for _DECL means that this member object type
                   1032:    is mutable.  */
                   1033: #define DECL_MUTABLE_P(NODE) (DECL_LANG_SPECIFIC(NODE)->decl_flags.mutable_flag)
                   1034: 
                   1035: /* Nonzero for FUNCTION_DECL means that this member function
                   1036:    exists as part of an abstract class's interface.  */
                   1037: #define DECL_ABSTRACT_VIRTUAL_P(NODE) (DECL_LANG_SPECIFIC(NODE)->decl_flags.abstract_virtual)
                   1038: 
                   1039: /* Nonzero if allocated on permanent_obstack.  */
                   1040: #define LANG_DECL_PERMANENT(LANGDECL) ((LANGDECL)->decl_flags.permanent_attr)
                   1041: 
                   1042: /* The _TYPE context in which this _DECL appears.  This field holds the
                   1043:    class where a virtual function instance is actually defined, and the
                   1044:    lexical scope of a friend function defined in a class body.  */
                   1045: #define DECL_CLASS_CONTEXT(NODE) (DECL_LANG_SPECIFIC(NODE)->decl_flags.context)
                   1046: 
                   1047: /* For a FUNCTION_DECL: the chain through which the next method
                   1048:    in the method chain is found.  We now use TREE_CHAIN to
                   1049:    link into the FIELD_DECL chain.  */
                   1050: #if 1
                   1051: #define DECL_CHAIN(NODE) (DECL_LANG_SPECIFIC(NODE)->chain)
                   1052: #else
                   1053: #define DECL_CHAIN(NODE) (TREE_CHAIN (NODE))
                   1054: #endif
                   1055: 
                   1056: /* Next method in CLASSTYPE_METHODS list. */
                   1057: #define DECL_NEXT_METHOD(NODE) (DECL_LANG_SPECIFIC(NODE)->next_method)
                   1058: 
                   1059: /* Points back to the decl which caused this lang_decl to be allocated.  */
                   1060: #define DECL_MAIN_VARIANT(NODE) (DECL_LANG_SPECIFIC(NODE)->main_decl_variant)
                   1061: 
                   1062: /* For a FUNCTION_DECL: if this function was declared inline inside of
                   1063:    a class declaration, this is where the text for the function is
                   1064:    squirreled away.  */
                   1065: #define DECL_PENDING_INLINE_INFO(NODE) (DECL_LANG_SPECIFIC(NODE)->pending_inline_info)
                   1066: 
                   1067: /* True if on the saved_inlines (see decl2.c) list. */
                   1068: #define DECL_SAVED_INLINE(DECL) \
                   1069:   (DECL_LANG_SPECIFIC(DECL)->decl_flags.saved_inline)
                   1070: 
                   1071: /* For a FUNCTION_DECL: if this function was declared inside a signature
                   1072:    declaration, this is the corresponding member function pointer that was
                   1073:    created for it.  */
                   1074: #define DECL_MEMFUNC_POINTER_TO(NODE) (DECL_LANG_SPECIFIC(NODE)->decl_flags.memfunc_pointer_to)
                   1075: 
                   1076: /* For a FIELD_DECL: this points to the signature member function from
                   1077:    which this signature member function pointer was created.  */
                   1078: #define DECL_MEMFUNC_POINTING_TO(NODE) (DECL_LANG_SPECIFIC(NODE)->decl_flags.memfunc_pointer_to)
                   1079: 
                   1080: /* For a TEMPLATE_DECL: template-specific information.  */
                   1081: #define DECL_TEMPLATE_INFO(NODE) (DECL_LANG_SPECIFIC(NODE)->template_info)
                   1082: 
                   1083: /* Nonzero in INT_CST means that this int is negative by dint of
                   1084:    using a twos-complement negated operand.  */
                   1085: #define TREE_NEGATED_INT(NODE) (TREE_LANG_FLAG_0 (NODE))
                   1086: 
                   1087: /* Nonzero in any kind of _EXPR or _REF node means that it is a call
                   1088:    to a storage allocation routine.  If, later, alternate storage
                   1089:    is found to hold the object, this call can be ignored.  */
                   1090: #define TREE_CALLS_NEW(NODE) (TREE_LANG_FLAG_1 (NODE))
                   1091: 
                   1092: /* Nonzero in any kind of _TYPE that uses multiple inheritance
                   1093:    or virtual baseclasses.  */
                   1094: #define TYPE_USES_COMPLEX_INHERITANCE(NODE) (TREE_LANG_FLAG_1 (NODE))
                   1095: 
                   1096: /* Nonzero in IDENTIFIER_NODE means that this name is not the name the user
                   1097:    gave; it's a DECL_NESTED_TYPENAME.  Someone may want to set this on
                   1098:    mangled function names, too, but it isn't currently.  */
                   1099: #define TREE_MANGLED(NODE) (TREE_LANG_FLAG_0 (NODE))
                   1100: 
                   1101: #if 0                          /* UNUSED */
                   1102: /* Nonzero in IDENTIFIER_NODE means that this name is overloaded, and
                   1103:    should be looked up in a non-standard way.  */
                   1104: #define DECL_OVERLOADED(NODE) (DECL_LANG_FLAG_4 (NODE))
                   1105: #endif
                   1106: 
                   1107: /* Nonzero if this (non-TYPE)_DECL has its virtual attribute set.
                   1108:    For a FUNCTION_DECL, this is when the function is a virtual function.
                   1109:    For a VAR_DECL, this is when the variable is a virtual function table.
                   1110:    For a FIELD_DECL, when the field is the field for the virtual function table.
                   1111:    For an IDENTIFIER_NODE, nonzero if any function with this name
                   1112:    has been declared virtual.
                   1113: 
                   1114:    For a _TYPE if it uses virtual functions (or is derived from
                   1115:    one that does).  */
                   1116: #define TYPE_VIRTUAL_P(NODE) (TREE_LANG_FLAG_2 (NODE))
                   1117: 
                   1118: #if 0
                   1119: /* Same, but tells if this field is private in current context.  */
                   1120: #define DECL_PRIVATE(NODE) (DECL_LANG_FLAG_5 (NODE))
                   1121: 
                   1122: /* Same, but tells if this field is private in current context.  */
                   1123: #define DECL_PROTECTED(NODE) (DECL_LANG_FLAG_6 (NODE))
                   1124: 
                   1125: #define DECL_PUBLIC(NODE) (DECL_LANG_FLAG_7 (NODE))
                   1126: #endif
                   1127: 
                   1128: /* This _DECL represents a compiler-generated entity.  */
                   1129: #define DECL_ARTIFICIAL(NODE) (DECL_SOURCE_LINE (NODE) == 0)
                   1130: #define SET_DECL_ARTIFICIAL(NODE) (DECL_SOURCE_LINE (NODE) = 0)
                   1131: 
                   1132: /* Record whether a typedef for type `int' was actually `signed int'.  */
                   1133: #define C_TYPEDEF_EXPLICITLY_SIGNED(exp) DECL_LANG_FLAG_1 ((exp))
                   1134: 
                   1135: /* Nonzero if the type T promotes to itself.
                   1136:    ANSI C states explicitly the list of types that promote;
                   1137:    in particular, short promotes to int even if they have the same width.  */
                   1138: #define C_PROMOTING_INTEGER_TYPE_P(t)                          \
                   1139:   (TREE_CODE ((t)) == INTEGER_TYPE                             \
                   1140:    && (TYPE_MAIN_VARIANT (t) == char_type_node                 \
                   1141:        || TYPE_MAIN_VARIANT (t) == signed_char_type_node       \
                   1142:        || TYPE_MAIN_VARIANT (t) == unsigned_char_type_node     \
                   1143:        || TYPE_MAIN_VARIANT (t) == short_integer_type_node     \
                   1144:        || TYPE_MAIN_VARIANT (t) == short_unsigned_type_node))
                   1145: 
                   1146: #define INTEGRAL_CODE_P(CODE) \
                   1147:   (CODE == INTEGER_TYPE || CODE == ENUMERAL_TYPE || CODE == BOOLEAN_TYPE)
                   1148: #define ARITHMETIC_TYPE_P(TYPE) (INTEGRAL_TYPE_P (TYPE) || FLOAT_TYPE_P (TYPE))
                   1149: 
                   1150: /* Mark which labels are explicitly declared.
                   1151:    These may be shadowed, and may be referenced from nested functions.  */
                   1152: #define C_DECLARED_LABEL_FLAG(label) TREE_LANG_FLAG_1 (label)
                   1153: 
                   1154: /* Record whether a type or decl was written with nonconstant size.
                   1155:    Note that TYPE_SIZE may have simplified to a constant.  */
                   1156: #define C_TYPE_VARIABLE_SIZE(type) TREE_LANG_FLAG_4 (type)
                   1157: #define C_DECL_VARIABLE_SIZE(type) DECL_LANG_FLAG_8 (type)
                   1158: 
                   1159: /* Nonzero for _TYPE means that the _TYPE defines
                   1160:    at least one constructor.  */
                   1161: #define TYPE_HAS_CONSTRUCTOR(NODE) (TYPE_LANG_FLAG_1(NODE))
                   1162: 
                   1163: /* When appearing in an INDIRECT_REF, it means that the tree structure
                   1164:    underneath is actually a call to a constructor.  This is needed
                   1165:    when the constructor must initialize local storage (which can
                   1166:    be automatically destroyed), rather than allowing it to allocate
                   1167:    space from the heap.
                   1168: 
                   1169:    When appearing in a SAVE_EXPR, it means that underneath
                   1170:    is a call to a constructor.
                   1171: 
                   1172:    When appearing in a CONSTRUCTOR, it means that it was
                   1173:    a GNU C constructor expression.
                   1174: 
                   1175:    When appearing in a FIELD_DECL, it means that this field
                   1176:    has been duly initialized in its constructor.  */
                   1177: #define TREE_HAS_CONSTRUCTOR(NODE) (TREE_LANG_FLAG_4(NODE))
                   1178: 
                   1179: #define EMPTY_CONSTRUCTOR_P(NODE) (TREE_CODE (NODE) == CONSTRUCTOR \
                   1180:                                   && CONSTRUCTOR_ELTS (NODE) == NULL_TREE)
                   1181: 
                   1182: /* Indicates that a NON_LVALUE_EXPR came from a C++ reference.
                   1183:    Used to generate more helpful error message in case somebody
                   1184:    tries to take its address.  */
                   1185: #define TREE_REFERENCE_EXPR(NODE) (TREE_LANG_FLAG_3(NODE))
                   1186: 
                   1187: /* Nonzero for _TYPE means that the _TYPE defines a destructor.  */
                   1188: #define TYPE_HAS_DESTRUCTOR(NODE) (TYPE_LANG_FLAG_2(NODE))
                   1189: 
                   1190: #if 0
                   1191: /* Nonzero for _TYPE node means that creating an object of this type
                   1192:    will involve a call to a constructor.  This can apply to objects
                   1193:    of ARRAY_TYPE if the type of the elements needs a constructor.  */
                   1194: #define TYPE_NEEDS_CONSTRUCTING(NODE) (TYPE_LANG_FLAG_3(NODE))
                   1195: #endif
                   1196: 
                   1197: /* Nonzero if there is a user-defined X::op=(x&) for this class.  */
                   1198: #define TYPE_HAS_REAL_ASSIGN_REF(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.has_real_assign_ref)
                   1199: #define TYPE_HAS_COMPLEX_ASSIGN_REF(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.has_complex_assign_ref)
                   1200: #define TYPE_HAS_ABSTRACT_ASSIGN_REF(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.has_abstract_assign_ref)
                   1201: #define TYPE_HAS_COMPLEX_INIT_REF(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.has_complex_init_ref)
                   1202: 
                   1203: /* Nonzero for _TYPE node means that destroying an object of this type
                   1204:    will involve a call to a destructor.  This can apply to objects
                   1205:    of ARRAY_TYPE is the type of the elements needs a destructor.  */
                   1206: #define TYPE_NEEDS_DESTRUCTOR(NODE) (TYPE_LANG_FLAG_4(NODE))
                   1207: 
                   1208: /* Nonzero for _TYPE node means that this type is a pointer to member
                   1209:    function type. */
                   1210: #define TYPE_PTRMEMFUNC_P(NODE) (TREE_CODE(NODE) == RECORD_TYPE && TYPE_LANG_SPECIFIC(NODE)->type_flags.ptrmemfunc_flag)
                   1211: #define TYPE_PTRMEMFUNC_FLAG(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.ptrmemfunc_flag)
                   1212: /* Get the POINTER_TYPE to the METHOD_TYPE associated with this
                   1213:    pointer to member function.  TYPE_PTRMEMFUNC_P _must_ be true,
                   1214:    before using this macro. */
                   1215: #define TYPE_PTRMEMFUNC_FN_TYPE(NODE) (TREE_TYPE (TYPE_FIELDS (TREE_TYPE (TREE_CHAIN (TREE_CHAIN (TYPE_FIELDS (NODE)))))))
                   1216: /* These are use to manipulate the the canonical RECORD_TYPE from the
                   1217:    hashed POINTER_TYPE, and can only be used on the POINTER_TYPE. */
                   1218: #define TYPE_GET_PTRMEMFUNC_TYPE(NODE) ((tree)TYPE_LANG_SPECIFIC(NODE))
                   1219: #define TYPE_SET_PTRMEMFUNC_TYPE(NODE, VALUE) (TYPE_LANG_SPECIFIC(NODE) = ((struct lang_type *)(void*)(VALUE)))
                   1220: /* These are to get the delta2 and pfn fields from a TYPE_PTRMEMFUNC_P. */
                   1221: #define DELTA2_FROM_PTRMEMFUNC(NODE) (build_component_ref (build_component_ref ((NODE), pfn_or_delta2_identifier, 0, 0), delta2_identifier, 0, 0))
                   1222: #define PFN_FROM_PTRMEMFUNC(NODE) (build_component_ref (build_component_ref ((NODE), pfn_or_delta2_identifier, 0, 0), pfn_identifier, 0, 0))
                   1223: 
                   1224: /* Nonzero for VAR_DECL and FUNCTION_DECL node means that `external' was
                   1225:    specified in its declaration.  */
                   1226: #define DECL_THIS_EXTERN(NODE) (DECL_LANG_FLAG_2(NODE))
                   1227: 
                   1228: /* Nonzero for SAVE_EXPR if used to initialize a PARM_DECL.  */
                   1229: #define PARM_DECL_EXPR(NODE) (TREE_LANG_FLAG_2(NODE))
                   1230: 
                   1231: /* Nonzero in FUNCTION_DECL means it is really an operator.
                   1232:    Just used to communicate formatting information to dbxout.c.  */
                   1233: #define DECL_OPERATOR(NODE) (DECL_LANG_SPECIFIC(NODE)->decl_flags.operator_attr)
                   1234: 
                   1235: #define ANON_UNION_P(NODE) (DECL_NAME (NODE) == 0)
                   1236: 
                   1237: #define UNKNOWN_TYPE LANG_TYPE
                   1238: 
                   1239: /* Define fields and accessors for nodes representing declared names.  */
                   1240: 
                   1241: #if 0
                   1242: /* C++: A derived class may be able to directly use the virtual
                   1243:    function table of a base class.  When it does so, it may
                   1244:    still have a decl node used to access the virtual function
                   1245:    table (so that variables of this type can initialize their
                   1246:    virtual function table pointers by name).  When such thievery
                   1247:    is committed, know exactly which base class's virtual function
                   1248:    table is the one being stolen.  This effectively computes the
                   1249:    transitive closure.  */
                   1250: #define DECL_VPARENT(NODE) ((NODE)->decl.arguments)
                   1251: #endif
                   1252: 
                   1253: /* Make a slot so we can implement nested types.  This slot holds
                   1254:    the IDENTIFIER_NODE that uniquely names the nested type.  This
                   1255:    is for TYPE_DECLs only.  */
                   1256: #define DECL_NESTED_TYPENAME(NODE) ((NODE)->decl.arguments)
                   1257: #define TYPE_NESTED_NAME(NODE) (DECL_NESTED_TYPENAME (TYPE_NAME (NODE)))
                   1258: 
                   1259: #define TYPE_WAS_ANONYMOUS(NODE) (TYPE_LANG_SPECIFIC (NODE)->type_flags.was_anonymous)
                   1260: 
                   1261: /* C++: all of these are overloaded!  These apply only to TYPE_DECLs.  */
                   1262: #define DECL_FRIENDLIST(NODE)          (DECL_INITIAL (NODE))
                   1263: #if 0
                   1264: #define DECL_UNDEFINED_FRIENDS(NODE)   ((NODE)->decl.result)
                   1265: #endif
                   1266: #define DECL_WAITING_FRIENDS(NODE)     ((tree)(NODE)->decl.rtl)
                   1267: #define SET_DECL_WAITING_FRIENDS(NODE,VALUE) \
                   1268:        ((NODE)->decl.rtl=(struct rtx_def*)VALUE)
                   1269: 
                   1270: /* The DECL_ACCESS is used to record under which context
                   1271:    special access rules apply.  */
                   1272: #define DECL_ACCESS(NODE) (DECL_LANG_SPECIFIC(NODE)->decl_flags.access)
                   1273: 
                   1274: /* C++: all of these are overloaded!
                   1275:    These apply to PARM_DECLs and VAR_DECLs.  */
                   1276: #define DECL_REFERENCE_SLOT(NODE) ((tree)(NODE)->decl.arguments)
                   1277: #define SET_DECL_REFERENCE_SLOT(NODE,VAL) ((NODE)->decl.arguments=VAL)
                   1278: 
                   1279: /* For local VAR_DECLs, holds index into gc-protected obstack.  */
                   1280: #define DECL_GC_OFFSET(NODE) ((NODE)->decl.result)
                   1281: 
                   1282: /* Accessor macros for C++ template decl nodes.  */
                   1283: #define DECL_TEMPLATE_IS_CLASS(NODE)    (DECL_RESULT(NODE) == NULL_TREE)
                   1284: #define DECL_TEMPLATE_PARMS(NODE)       DECL_ARGUMENTS(NODE)
                   1285: /* For class templates.  */
                   1286: #define DECL_TEMPLATE_MEMBERS(NODE)     DECL_SIZE(NODE)
                   1287: /* For function, method, class-data templates.  */
                   1288: #define DECL_TEMPLATE_RESULT(NODE)      DECL_RESULT(NODE)
                   1289: #define DECL_TEMPLATE_INSTANTIATIONS(NODE) DECL_VINDEX(NODE)
                   1290: 
                   1291: /* Indicates whether or not (and how) a template was expanded for this
                   1292:    FUNCTION_DECL or VAR_DECL.
                   1293:      0=normal declaration, e.g. int min (int, int);
                   1294:      1=implicit template instantiation
                   1295:      2=explicit template specialization, e.g. int min<int> (int, int);
                   1296:      3=explicit template instantiation, e.g. template int min<int> (int, int);
                   1297:  */
                   1298: #define DECL_USE_TEMPLATE(NODE) (DECL_LANG_SPECIFIC(NODE)->decl_flags.use_template)
                   1299: 
                   1300: #define DECL_TEMPLATE_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) & 1)
                   1301: #define CLASSTYPE_TEMPLATE_INSTANTIATION(NODE) \
                   1302:   (CLASSTYPE_USE_TEMPLATE (NODE) & 1)
                   1303: 
                   1304: #define DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) == 2)
                   1305: #define SET_DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) = 2)
                   1306: #define CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \
                   1307:   (CLASSTYPE_USE_TEMPLATE (NODE) == 2)
                   1308: #define SET_CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \
                   1309:   (CLASSTYPE_USE_TEMPLATE (NODE) = 2)
                   1310: 
                   1311: #define DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 1)
                   1312: #define SET_DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 1)
                   1313: #define CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \
                   1314:   (CLASSTYPE_USE_TEMPLATE(NODE) == 1)
                   1315: #define SET_CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \
                   1316:   (CLASSTYPE_USE_TEMPLATE(NODE) = 1)
                   1317: 
                   1318: #define DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 3)
                   1319: #define SET_DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 3)
                   1320: #define CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \
                   1321:   (CLASSTYPE_USE_TEMPLATE(NODE) == 3)
                   1322: #define SET_CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \
                   1323:   (CLASSTYPE_USE_TEMPLATE(NODE) = 3)
                   1324: 
                   1325: #define THUNK_DELTA(DECL) ((DECL)->decl.frame_size.i)
                   1326: 
                   1327: /* ...and for unexpanded-parameterized-type nodes.  */
                   1328: #define UPT_TEMPLATE(NODE)      TREE_PURPOSE(TYPE_VALUES(NODE))
                   1329: #define UPT_PARMS(NODE)         TREE_VALUE(TYPE_VALUES(NODE))
                   1330: 
                   1331: /* An enumeration of the kind of tags that C++ accepts.  */
                   1332: enum tag_types { record_type, class_type, union_type, enum_type,
                   1333:                   exception_type, signature_type };
                   1334: 
                   1335: /* Zero means prototype weakly, as in ANSI C (no args means nothing).
                   1336:    Each language context defines how this variable should be set.  */
                   1337: extern int strict_prototype;
                   1338: extern int strict_prototypes_lang_c, strict_prototypes_lang_cplusplus;
                   1339: 
                   1340: /* Non-zero means that if a label exists, and no other identifier
                   1341:    applies, use the value of the label.  */
                   1342: extern int flag_labels_ok;
                   1343: 
                   1344: /* Non-zero means to collect statistics which might be expensive
                   1345:    and to print them when we are done.  */
                   1346: extern int flag_detailed_statistics;
                   1347: 
                   1348: /* Non-zero means warn in function declared in derived class has the
                   1349:    same name as a virtual in the base class, but fails to match the
                   1350:    type signature of any virtual function in the base class.  */
                   1351: extern int warn_overloaded_virtual;
                   1352: 
                   1353: /* in c-common.c */
                   1354: extern void declare_function_name               PROTO((void));
                   1355: extern void decl_attributes                     PROTO((tree, tree));
                   1356: extern void init_function_format_info          PROTO((void));
                   1357: extern void record_function_format             PROTO((tree, tree, int, int, int));
                   1358: extern void check_function_format              PROTO((tree, tree, tree));
                   1359: /* Print an error message for invalid operands to arith operation CODE.
                   1360:    NOP_EXPR is used as a special case (see truthvalue_conversion).  */
                   1361: extern void binary_op_error                     PROTO((enum tree_code));
                   1362: extern tree cp_build_type_variant                PROTO((tree, int, int));
                   1363: extern void c_expand_expr_stmt                  PROTO((tree));
                   1364: /* Validate the expression after `case' and apply default promotions.  */
                   1365: extern tree check_case_value                    PROTO((tree));
                   1366: /* Concatenate a list of STRING_CST nodes into one STRING_CST.  */
                   1367: extern tree combine_strings                     PROTO((tree));
                   1368: extern void constant_expression_warning         PROTO((tree));
                   1369: extern tree convert_and_check                  PROTO((tree, tree));
                   1370: extern void overflow_warning                   PROTO((tree));
                   1371: extern void unsigned_conversion_warning                PROTO((tree, tree));
                   1372: /* Read the rest of the current #-directive line.  */
                   1373: extern char *get_directive_line                 STDIO_PROTO((FILE *));
                   1374: /* Subroutine of build_binary_op, used for comparison operations.
                   1375:    See if the operands have both been converted from subword integer types
                   1376:    and, if so, perhaps change them both back to their original type.  */
                   1377: extern tree shorten_compare                     PROTO((tree *, tree *, tree *, enum tree_code *));
                   1378: /* Prepare expr to be an argument of a TRUTH_NOT_EXPR,
                   1379:    or validate its data type for an `if' or `while' statement or ?..: exp. */
                   1380: extern tree truthvalue_conversion               PROTO((tree));
                   1381: extern tree type_for_mode                       PROTO((enum machine_mode, int));
                   1382: extern tree type_for_size                       PROTO((unsigned, int));
                   1383: 
                   1384: /* in decl{2}.c */
                   1385: extern tree void_list_node;
                   1386: extern tree void_zero_node;
                   1387: extern tree default_function_type;
                   1388: extern tree vtable_entry_type;
                   1389: extern tree sigtable_entry_type;
                   1390: extern tree __t_desc_type_node, __i_desc_type_node, __m_desc_type_node;
                   1391: extern tree Type_info_type_node;
                   1392: extern tree class_star_type_node;
                   1393: extern tree this_identifier;
                   1394: extern tree pfn_identifier;
                   1395: extern tree index_identifier;
                   1396: extern tree delta_identifier;
                   1397: extern tree delta2_identifier;
                   1398: extern tree pfn_or_delta2_identifier;
                   1399: 
                   1400: /* A node that is a list (length 1) of error_mark_nodes.  */
                   1401: extern tree error_mark_list;
                   1402: 
                   1403: extern tree ptr_type_node, const_ptr_type_node;
                   1404: extern tree class_type_node, record_type_node, union_type_node, enum_type_node;
                   1405: extern tree exception_type_node, unknown_type_node;
                   1406: extern tree opaque_type_node, signature_type_node;
                   1407: 
                   1408: /* Node for "pointer to (virtual) function".
                   1409:    This may be distinct from ptr_type_node so gdb can distinuish them. */
                   1410: #define vfunc_ptr_type_node \
                   1411:   (flag_vtable_thunks ? vtable_entry_type : ptr_type_node)
                   1412: 
                   1413: /* Array type `(void *)[]' */
                   1414: extern tree vtbl_type_node;
                   1415: extern tree delta_type_node;
                   1416: 
                   1417: extern tree long_long_integer_type_node, long_long_unsigned_type_node;
                   1418: /* For building calls to `delete'.  */
                   1419: extern tree integer_two_node, integer_three_node;
                   1420: extern tree bool_type_node, true_node, false_node;
                   1421: 
                   1422: /* in except.c */
                   1423: extern tree current_exception_type;
                   1424: extern tree current_exception_decl;
                   1425: extern tree current_exception_object;
                   1426: 
                   1427: /* in pt.c  */
                   1428: /* PARM_VEC is a vector of template parameters, either IDENTIFIER_NODEs or
                   1429:    PARM_DECLs.  BINDINGS, if non-null, is a vector of bindings for those
                   1430:    parameters.  */
                   1431: struct template_info {
                   1432:   /* Vector of template parameters, either PARM_DECLs or IDENTIFIER_NODEs.  */
                   1433:   tree parm_vec;
                   1434:   /* If non-null, a vector of bindings for the template parms.  */
                   1435:   tree bindings;
                   1436: 
                   1437:   /* Text of template, and length.  */
                   1438:   char *text;
                   1439:   int length;
                   1440:   /* Where it came from.  */
                   1441:   char *filename;
                   1442:   int lineno;
                   1443: 
                   1444:   /* What kind of aggregate -- struct, class, or null.  */
                   1445:   tree aggr;
                   1446: };
                   1447: extern int processing_template_decl, processing_template_defn;
                   1448: 
                   1449: /* The template currently being instantiated, and where the instantiation
                   1450:    was triggered.  */
                   1451: struct tinst_level
                   1452: {
                   1453:   tree classname;
                   1454:   int line;
                   1455:   char *file;
                   1456:   struct tinst_level *next;
                   1457: };
                   1458: 
                   1459: extern struct tinst_level *current_tinst_level;
                   1460: 
                   1461: /* in class.c */
                   1462: extern tree current_class_name;
                   1463: extern tree current_class_type;
                   1464: extern tree previous_class_type;
                   1465: 
                   1466: extern tree current_lang_name, lang_name_cplusplus, lang_name_c;
                   1467: 
                   1468: /* Points to the name of that function. May not be the DECL_NAME
                   1469:    of CURRENT_FUNCTION_DECL due to overloading */
                   1470: extern tree original_function_name;
                   1471: 
                   1472: extern tree current_class_name, current_class_type, current_class_decl, C_C_D;
                   1473: extern tree current_vtable_decl;
                   1474: 
                   1475: /* in init.c  */
                   1476: extern tree global_base_init_list;
                   1477: extern tree current_base_init_list, current_member_init_list;
                   1478: 
                   1479: extern int current_function_assigns_this;
                   1480: extern int current_function_just_assigned_this;
                   1481: extern int current_function_parms_stored;
                   1482: 
                   1483: /* Here's where we control how name mangling takes place.  */
                   1484: 
                   1485: #define OPERATOR_ASSIGN_FORMAT "__a%s"
                   1486: #define OPERATOR_FORMAT "__%s"
                   1487: #define OPERATOR_TYPENAME_FORMAT "__op"
                   1488: #define OPERATOR_TYPENAME_P(ID_NODE) \
                   1489:   (IDENTIFIER_POINTER (ID_NODE)[0] == '_'      \
                   1490:    && IDENTIFIER_POINTER (ID_NODE)[1] == '_'   \
                   1491:    && IDENTIFIER_POINTER (ID_NODE)[2] == 'o'   \
                   1492:    && IDENTIFIER_POINTER (ID_NODE)[3] == 'p')
                   1493: 
                   1494: 
                   1495: /* Cannot use '$' up front, because this confuses gdb
                   1496:    (names beginning with '$' are gdb-local identifiers).
                   1497: 
                   1498:    Note that all forms in which the '$' is significant are long enough
                   1499:    for direct indexing (meaning that if we know there is a '$'
                   1500:    at a particular location, we can index into the string at
                   1501:    any other location that provides distinguishing characters).  */
                   1502: 
                   1503: /* Define NO_DOLLAR_IN_LABEL in your favorite tm file if your assembler
                   1504:    doesn't allow '$' in symbol names.  */
                   1505: #ifndef NO_DOLLAR_IN_LABEL
                   1506: 
                   1507: #define JOINER '$'
                   1508: 
                   1509: #define VPTR_NAME "$v"
                   1510: #define THROW_NAME "$eh_throw"
                   1511: #define DESTRUCTOR_DECL_PREFIX "_$_"
                   1512: #define AUTO_VTABLE_NAME "__vtbl$me__"
                   1513: #define AUTO_TEMP_NAME "_$tmp_"
                   1514: #define AUTO_TEMP_FORMAT "_$tmp_%d"
                   1515: #define VTABLE_BASE "$vb"
                   1516: #define VTABLE_NAME_FORMAT (flag_vtable_thunks ? "__vt_%s" : "_vt$%s")
                   1517: #define VFIELD_BASE "$vf"
                   1518: #define VFIELD_NAME "_vptr$"
                   1519: #define VFIELD_NAME_FORMAT "_vptr$%s"
                   1520: #define VBASE_NAME "_vb$"
                   1521: #define VBASE_NAME_FORMAT "_vb$%s"
                   1522: #define STATIC_NAME_FORMAT "_%s$%s"
                   1523: #define ANON_AGGRNAME_FORMAT "$_%d"
                   1524: 
                   1525: #else /* NO_DOLLAR_IN_LABEL */
                   1526: 
                   1527: #ifndef NO_DOT_IN_LABEL
                   1528: 
                   1529: #define JOINER '.'
                   1530: 
                   1531: #define VPTR_NAME ".v"
                   1532: #define THROW_NAME ".eh_throw"
                   1533: #define DESTRUCTOR_DECL_PREFIX "_._"
                   1534: #define AUTO_VTABLE_NAME "__vtbl.me__"
                   1535: #define AUTO_TEMP_NAME "_.tmp_"
                   1536: #define AUTO_TEMP_FORMAT "_.tmp_%d"
                   1537: #define VTABLE_BASE ".vb"
                   1538: #define VTABLE_NAME_FORMAT (flag_vtable_thunks ? "__vt_%s" : "_vt.%s")
                   1539: #define VFIELD_BASE ".vf"
                   1540: #define VFIELD_NAME "_vptr."
                   1541: #define VFIELD_NAME_FORMAT "_vptr.%s"
                   1542: #define VBASE_NAME "_vb."
                   1543: #define VBASE_NAME_FORMAT "_vb.%s"
                   1544: #define STATIC_NAME_FORMAT "_%s.%s"
                   1545: 
                   1546: #define ANON_AGGRNAME_FORMAT "._%d"
                   1547: 
                   1548: #else /* NO_DOT_IN_LABEL */
                   1549: 
                   1550: #define VPTR_NAME "__vptr"
                   1551: #define VPTR_NAME_P(ID_NODE) \
                   1552:   (!strncmp (IDENTIFIER_POINTER (ID_NODE), VPTR_NAME, sizeof (VPTR_NAME) - 1))
                   1553: #define THROW_NAME "__eh_throw"
                   1554: #define DESTRUCTOR_DECL_PREFIX "__destr_"
                   1555: #define DESTRUCTOR_NAME_P(ID_NODE) \
                   1556:   (!strncmp (IDENTIFIER_POINTER (ID_NODE), DESTRUCTOR_DECL_PREFIX, \
                   1557:             sizeof (DESTRUCTOR_DECL_PREFIX) - 1))
                   1558: #define IN_CHARGE_NAME "__in_chrg"
                   1559: #define AUTO_VTABLE_NAME "__vtbl_me__"
                   1560: #define AUTO_TEMP_NAME "__tmp_"
                   1561: #define TEMP_NAME_P(ID_NODE) \
                   1562:   (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, \
                   1563:             sizeof (AUTO_TEMP_NAME) - 1))
                   1564: #define AUTO_TEMP_FORMAT "__tmp_%d"
                   1565: #define VTABLE_BASE "__vtb"
                   1566: #define VTABLE_NAME "__vt_"
                   1567: #define VTABLE_NAME_FORMAT (flag_vtable_thunks ? "__vt_%s" : "_vt_%s")
                   1568: #define VTABLE_NAME_P(ID_NODE) \
                   1569:   (!strncmp (IDENTIFIER_POINTER (ID_NODE), VTABLE_NAME, \
                   1570:             sizeof (VTABLE_NAME) - 1))
                   1571: #define VFIELD_BASE "__vfb"
                   1572: #define VFIELD_NAME "__vptr_"
                   1573: #define VFIELD_NAME_P(ID_NODE) \
                   1574:   (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, \
                   1575:            sizeof (VFIELD_NAME) - 1))
                   1576: #define VFIELD_NAME_FORMAT "_vptr_%s"
                   1577: #define VBASE_NAME "__vb_"
                   1578: #define VBASE_NAME_P(ID_NODE) \
                   1579:   (!strncmp (IDENTIFIER_POINTER (ID_NODE), VBASE_NAME, \
                   1580:             sizeof (VBASE_NAME) - 1))
                   1581: #define VBASE_NAME_FORMAT "__vb_%s"
                   1582: #define STATIC_NAME_FORMAT "__static_%s_%s"
                   1583: 
                   1584: #define ANON_AGGRNAME_PREFIX "__anon_"
                   1585: #define ANON_AGGRNAME_P(ID_NODE) \
                   1586:   (!strncmp (IDENTIFIER_POINTER (ID_NODE), ANON_AGGRNAME_PREFIX, \
                   1587:             sizeof (ANON_AGGRNAME_PREFIX) - 1))
                   1588: #define ANON_AGGRNAME_FORMAT "__anon_%d"
                   1589: #define ANON_PARMNAME_FORMAT "__%d"
                   1590: #define ANON_PARMNAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[0] == '_' \
                   1591:                                  && IDENTIFIER_POINTER (ID_NODE)[1] == '_' \
                   1592:                                  && IDENTIFIER_POINTER (ID_NODE)[2] <= '9')
                   1593: 
                   1594: #endif /* NO_DOT_IN_LABEL */
                   1595: #endif /* NO_DOLLAR_IN_LABEL */
                   1596: 
                   1597: #define THIS_NAME "this"
                   1598: #define DESTRUCTOR_NAME_FORMAT "~%s"
                   1599: #define FILE_FUNCTION_PREFIX_LEN 9
                   1600: 
                   1601: #define IN_CHARGE_NAME "__in_chrg"
                   1602: 
                   1603: #define VTBL_PTR_TYPE          "__vtbl_ptr_type"
                   1604: #define VTABLE_DELTA_NAME      "__delta"
                   1605: #define VTABLE_INDEX_NAME      "__index"
                   1606: #define VTABLE_PFN_NAME                "__pfn"
                   1607: #define VTABLE_DELTA2_NAME     "__delta2"
                   1608: 
                   1609: #define SIGNATURE_FIELD_NAME   "__s_"
                   1610: #define SIGNATURE_FIELD_NAME_FORMAT "__s_%s"
                   1611: #define SIGNATURE_OPTR_NAME    "__optr"
                   1612: #define SIGNATURE_SPTR_NAME    "__sptr"
                   1613: #define SIGNATURE_VPTR_NAME    "__vptr"
                   1614: #define SIGNATURE_POINTER_NAME "__sp_"
                   1615: #define SIGNATURE_POINTER_NAME_FORMAT "__%s%ssp_%s"
                   1616: #define SIGNATURE_REFERENCE_NAME "__sr_"
                   1617: #define SIGNATURE_REFERENCE_NAME_FORMAT "__%s%ssr_%s"
                   1618: 
                   1619: #define SIGTABLE_PTR_TYPE      "__sigtbl_ptr_type"
                   1620: #define SIGTABLE_NAME_FORMAT   "__st_%s_%s"
                   1621: #define SIGTABLE_NAME_FORMAT_LONG "__st_%s_%s_%d"
                   1622: #define SIGTABLE_CODE_NAME     "__code"
                   1623: #define SIGTABLE_OFFSET_NAME   "__offset"
                   1624: #define SIGTABLE_PFN_NAME      "__pfn"
                   1625: #define EXCEPTION_CLEANUP_NAME         "exception cleanup"
                   1626: 
                   1627: #define THIS_NAME_P(ID_NODE) (strcmp(IDENTIFIER_POINTER (ID_NODE), "this") == 0)
                   1628: 
                   1629: #if !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL)
                   1630: 
                   1631: #define VPTR_NAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[0] == JOINER \
                   1632:                              && IDENTIFIER_POINTER (ID_NODE)[1] == 'v')
                   1633: #define DESTRUCTOR_NAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[1] == JOINER \
                   1634:                                     && IDENTIFIER_POINTER (ID_NODE)[2] == '_') 
                   1635: 
                   1636: #define VTABLE_NAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[1] == 'v' \
                   1637:   && IDENTIFIER_POINTER (ID_NODE)[2] == 't' \
                   1638:   && IDENTIFIER_POINTER (ID_NODE)[3] == JOINER)
                   1639: 
                   1640: #define VBASE_NAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[1] == 'v' \
                   1641:   && IDENTIFIER_POINTER (ID_NODE)[2] == 'b' \
                   1642:   && IDENTIFIER_POINTER (ID_NODE)[3] == JOINER)
                   1643: 
                   1644: #define TEMP_NAME_P(ID_NODE) (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, sizeof (AUTO_TEMP_NAME)-1))
                   1645: #define VFIELD_NAME_P(ID_NODE) (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, sizeof(VFIELD_NAME)-1))
                   1646: 
                   1647: /* For anonymous aggregate types, we need some sort of name to
                   1648:    hold on to.  In practice, this should not appear, but it should
                   1649:    not be harmful if it does.  */
                   1650: #define ANON_AGGRNAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[0] == JOINER \
                   1651:                                  && IDENTIFIER_POINTER (ID_NODE)[1] == '_')
                   1652: #define ANON_PARMNAME_FORMAT "_%d"
                   1653: #define ANON_PARMNAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[0] == '_' \
                   1654:                                  && IDENTIFIER_POINTER (ID_NODE)[1] <= '9')
                   1655: #endif /* !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL) */
                   1656: 
                   1657: /* Define the sets of attributes that member functions and baseclasses
                   1658:    can have.  These are sensible combinations of {public,private,protected}
                   1659:    cross {virtual,non-virtual}.  */
                   1660: 
                   1661: enum access_type {
                   1662:   access_default,
                   1663:   access_public,
                   1664:   access_protected,
                   1665:   access_private,
                   1666:   access_default_virtual,
                   1667:   access_public_virtual,
                   1668:   access_private_virtual
                   1669: };
                   1670: 
                   1671: /* in lex.c  */
                   1672: extern tree current_unit_name, current_unit_language;
                   1673: 
                   1674: /* Things for handling inline functions.  */
                   1675: 
                   1676: struct pending_inline
                   1677: {
                   1678:   struct pending_inline *next; /* pointer to next in chain */
                   1679:   int lineno;                  /* line number we got the text from */
                   1680:   char *filename;              /* name of file we were processing */
                   1681:   tree fndecl;                 /* FUNCTION_DECL that brought us here */
                   1682:   int token;                   /* token we were scanning */
                   1683:   int token_value;             /* value of token we were scanning (YYSTYPE) */
                   1684: 
                   1685:   char *buf;                   /* pointer to character stream */
                   1686:   int len;                     /* length of stream */
                   1687:   tree parm_vec, bindings;     /* in case this is derived from a template */
                   1688:   unsigned int can_free : 1;   /* free this after we're done with it? */
                   1689:   unsigned int deja_vu : 1;    /* set iff we don't want to see it again.  */
                   1690:   unsigned int interface : 2;  /* 0=interface 1=unknown 2=implementation */
                   1691: };
                   1692: 
                   1693: /* in method.c */
                   1694: extern struct pending_inline *pending_inlines;
                   1695: 
                   1696: /* 1 for -fall-virtual: make every member function (except
                   1697:    constructors) lay down in the virtual function table.
                   1698:    Calls can then either go through the virtual function table or not,
                   1699:    depending on whether we know what function will actually be called.  */
                   1700: 
                   1701: extern int flag_all_virtual;
                   1702: 
                   1703: /* Positive values means that we cannot make optimizing assumptions about
                   1704:    `this'.  Negative values means we know `this' to be of static type.  */
                   1705: 
                   1706: extern int flag_this_is_variable;
                   1707: 
                   1708: /* Controls whether enums and ints freely convert.
                   1709:    1 means with complete freedom.
                   1710:    0 means enums can convert to ints, but not vice-versa.  */
                   1711: 
                   1712: extern int flag_int_enum_equivalence;
                   1713: 
                   1714: /* Nonzero means layout structures so that we can do garbage collection.  */
                   1715: 
                   1716: extern int flag_gc;
                   1717: 
                   1718: /* Nonzero means generate 'dossiers' that give run-time type information.  */
                   1719: 
                   1720: extern int flag_dossier;
                   1721: 
                   1722: /* Nonzero means do emit exported implementations of functions even if
                   1723:    they can be inlined.  */
                   1724: 
                   1725: extern int flag_implement_inlines;
                   1726: 
                   1727: /* Nonzero means templates obey #pragma interface and implementation.  */
                   1728: 
                   1729: extern int flag_external_templates;
                   1730: 
                   1731: /* Nonzero means templates are emitted where they are instantiated.  */
                   1732: 
                   1733: extern int flag_alt_external_templates;
                   1734: 
                   1735: /* Nonzero means implicit template instantatiations are emitted.  */
                   1736: 
                   1737: extern int flag_implicit_templates;
                   1738: 
                   1739: /* Current end of entries in the gc obstack for stack pointer variables.  */
                   1740: 
                   1741: extern int current_function_obstack_index;
                   1742: 
                   1743: /* Flag saying whether we have used the obstack in this function or not.  */
                   1744: 
                   1745: extern int current_function_obstack_usage;
                   1746: 
                   1747: enum overload_flags { NO_SPECIAL = 0, DTOR_FLAG, OP_FLAG, TYPENAME_FLAG };
                   1748: 
                   1749: extern tree current_class_decl, C_C_D; /* PARM_DECL: the class instance variable */
                   1750: 
                   1751: /* The following two can be derived from the previous one */
                   1752: extern tree current_class_name;        /* IDENTIFIER_NODE: name of current class */
                   1753: extern tree current_class_type;        /* _TYPE: the type of the current class */
                   1754: 
                   1755: /* Some macros for char-based bitfields.  */
                   1756: #define B_SET(a,x) (a[x>>3] |= (1 << (x&7)))
                   1757: #define B_CLR(a,x) (a[x>>3] &= ~(1 << (x&7)))
                   1758: #define B_TST(a,x) (a[x>>3] & (1 << (x&7)))
                   1759: 
                   1760: /* These are uses as bits in flags passed to build_method_call
                   1761:    to control its error reporting behavior.
                   1762: 
                   1763:    LOOKUP_PROTECT means flag access violations.
                   1764:    LOOKUP_COMPLAIN mean complain if no suitable member function
                   1765:      matching the arguments is found.
                   1766:    LOOKUP_NORMAL is just a combination of these two.
                   1767:    LOOKUP_AGGR requires the instance to be of aggregate type.
                   1768:    LOOKUP_NONVIRTUAL means make a direct call to the member function found
                   1769:    LOOKUP_GLOBAL means search through the space of overloaded functions,
                   1770:      as well as the space of member functions.
                   1771:    LOOKUP_HAS_IN_CHARGE means that the "in charge" variable is already
                   1772:      in the parameter list.
                   1773:    LOOKUP_NO_CONVERSION means that user-defined conversions are not
                   1774:      permitted.  Built-in conversions are permitted.
                   1775:    LOOKUP_DESTRUCTOR means explicit call to destructor.  */
                   1776: 
                   1777: #define LOOKUP_PROTECT (1)
                   1778: #define LOOKUP_COMPLAIN (2)
                   1779: #define LOOKUP_NORMAL (3)
                   1780: #define LOOKUP_AGGR (4)
                   1781: #define LOOKUP_NONVIRTUAL (8)
                   1782: #define LOOKUP_GLOBAL (16)
                   1783: #define LOOKUP_HAS_IN_CHARGE (32)
                   1784: #define LOOKUP_SPECULATIVELY (64)
                   1785: /* 128 & 256 are free */
                   1786: #define LOOKUP_NO_CONVERSION (512)
                   1787: #define LOOKUP_DESTRUCTOR (512)
                   1788: 
                   1789: /* These flags are used by the conversion code.
                   1790:    CONV_IMPLICIT   :  Perform implicit conversions (standard and user-defined).
                   1791:    CONV_STATIC     :  Perform the explicit conversions for static_cast.
                   1792:    CONV_CONST      :  Perform the explicit conversions for const_cast.
                   1793:    CONV_REINTERPRET:  Perform the explicit conversions for reinterpret_cast.
                   1794:    CONV_PRIVATE    :  Perform upcasts to private bases.  */
                   1795: 
                   1796: #define CONV_IMPLICIT    1
                   1797: #define CONV_STATIC      2
                   1798: #define CONV_CONST       4
                   1799: #define CONV_REINTERPRET 8
                   1800: #define CONV_PRIVATE    16
                   1801: #define CONV_STATIC_CAST (CONV_IMPLICIT | CONV_STATIC)
                   1802: #define CONV_OLD_CONVERT (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \
                   1803:                          | CONV_REINTERPRET)
                   1804: #define CONV_C_CAST      (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \
                   1805:                          | CONV_REINTERPRET | CONV_PRIVATE)
                   1806: 
                   1807: /* Anatomy of a DECL_FRIENDLIST (which is a TREE_LIST):
                   1808:    purpose = friend name (IDENTIFIER_NODE);
                   1809:    value = TREE_LIST of FUNCTION_DECLS;
                   1810:    chain, type = EMPTY;  */
                   1811: #define FRIEND_NAME(LIST) (TREE_PURPOSE (LIST))
                   1812: #define FRIEND_DECLS(LIST) (TREE_VALUE (LIST))
                   1813: 
                   1814: /* These macros are for accessing the fields of TEMPLATE...PARM nodes.  */
                   1815: #define TEMPLATE_TYPE_TPARMLIST(NODE) TREE_PURPOSE (TYPE_FIELDS (NODE))
                   1816: #define TEMPLATE_TYPE_IDX(NODE) TREE_INT_CST_LOW (TREE_VALUE (TYPE_FIELDS (NODE)))
                   1817: #define TEMPLATE_TYPE_SET_INFO(NODE,P,I) \
                   1818:   (TYPE_FIELDS (NODE) = build_tree_list (P, build_int_2 (I, 0)))
                   1819: #define TEMPLATE_CONST_TPARMLIST(NODE) (*(tree*)&TREE_INT_CST_LOW(NODE))
                   1820: #define TEMPLATE_CONST_IDX(NODE) (TREE_INT_CST_HIGH(NODE))
                   1821: #define TEMPLATE_CONST_SET_INFO(NODE,P,I) \
                   1822:   (TEMPLATE_CONST_TPARMLIST (NODE) = saved_parmlist, \
                   1823:    TEMPLATE_CONST_IDX (NODE) = I)
                   1824: 
                   1825: /* in lex.c  */
                   1826: /* Indexed by TREE_CODE, these tables give C-looking names to
                   1827:    operators represented by TREE_CODES.  For example,
                   1828:    opname_tab[(int) MINUS_EXPR] == "-".  */
                   1829: extern char **opname_tab, **assignop_tab;
                   1830: 
                   1831: /* in c-common.c */
                   1832: extern tree convert_and_check                  PROTO((tree, tree));
                   1833: extern void overflow_warning                   PROTO((tree));
                   1834: extern void unsigned_conversion_warning                PROTO((tree, tree));
                   1835: 
                   1836: /* in call.c */
                   1837: extern struct candidate *ansi_c_bullshit;
                   1838: 
                   1839: extern int rank_for_overload                   PROTO((struct candidate *, struct candidate *));
                   1840: extern void compute_conversion_costs           PROTO((tree, tree, struct candidate *, int));
                   1841: extern int get_arglist_len_in_bytes            PROTO((tree));
                   1842: extern tree build_vfield_ref                   PROTO((tree, tree));
                   1843: extern tree find_scoped_type                   PROTO((tree, tree, tree));
                   1844: extern tree resolve_scope_to_name              PROTO((tree, tree));
                   1845: extern tree build_scoped_method_call           PROTO((tree, tree, tree, tree));
                   1846: extern tree build_method_call                  PROTO((tree, tree, tree, tree, int));
                   1847: extern tree build_overload_call_real           PROTO((tree, tree, int, struct candidate *, int));
                   1848: extern tree build_overload_call                        PROTO((tree, tree, int, struct candidate *));
                   1849: extern tree build_overload_call_maybe          PROTO((tree, tree, int, struct candidate *));
                   1850: 
                   1851: /* in class.c */
                   1852: extern tree build_vbase_pointer                        PROTO((tree, tree));
                   1853: extern tree build_vbase_path                   PROTO((enum tree_code, tree, tree, tree, int));
                   1854: extern tree build_vtable_entry                 PROTO((tree, tree));
                   1855: extern tree build_vfn_ref                      PROTO((tree *, tree, tree));
                   1856: extern void add_method                         PROTO((tree, tree *, tree));
                   1857: extern tree get_vfield_offset                  PROTO((tree));
                   1858: extern void duplicate_tag_error                        PROTO((tree));
                   1859: extern tree finish_struct                      PROTO((tree, tree, int));
                   1860: extern int resolves_to_fixed_type_p            PROTO((tree, int *));
                   1861: extern void init_class_processing              PROTO((void));
                   1862: extern void pushclass                          PROTO((tree, int));
                   1863: extern void popclass                           PROTO((int));
                   1864: extern void push_nested_class                  PROTO((tree, int));
                   1865: extern void pop_nested_class                   PROTO((int));
                   1866: extern void push_lang_context                  PROTO((tree));
                   1867: extern void pop_lang_context                   PROTO((void));
                   1868: extern int root_lang_context_p                 PROTO((void));
                   1869: extern tree instantiate_type                   PROTO((tree, tree, int));
                   1870: extern void print_class_statistics             PROTO((void));
                   1871: extern void maybe_push_cache_obstack           PROTO((void));
                   1872: 
                   1873: /* in cvt.c */
                   1874: extern tree convert_to_reference               PROTO((tree, tree, int, int, tree));
                   1875: extern tree convert_from_reference             PROTO((tree));
                   1876: extern tree convert_to_aggr                    PROTO((tree, tree, char **, int));
                   1877: extern tree convert_pointer_to                 PROTO((tree, tree));
                   1878: extern tree convert_pointer_to_real            PROTO((tree, tree));
                   1879: extern tree convert_pointer_to_vbase           PROTO((tree, tree));
                   1880: extern tree convert                            PROTO((tree, tree));
                   1881: extern tree convert_force                      PROTO((tree, tree));
                   1882: extern tree build_type_conversion              PROTO((enum tree_code, tree, tree, int));
                   1883: extern int build_default_binary_type_conversion        PROTO((enum tree_code, tree *, tree *));
                   1884: extern int build_default_unary_type_conversion PROTO((enum tree_code, tree *));
                   1885: extern tree type_promotes_to                   PROTO((tree));
                   1886: 
                   1887: /* decl.c */
                   1888: extern int global_bindings_p                   PROTO((void));
                   1889: extern void keep_next_level                    PROTO((void));
                   1890: extern int kept_level_p                                PROTO((void));
                   1891: extern void declare_parm_level                 PROTO((void));
                   1892: extern void declare_implicit_exception         PROTO((void));
                   1893: extern int have_exceptions_p                   PROTO((void));
                   1894: extern void declare_uninstantiated_type_level  PROTO((void));
                   1895: extern int uninstantiated_type_level_p         PROTO((void));
                   1896: extern void declare_pseudo_global_level                PROTO((void));
                   1897: extern int pseudo_global_level_p               PROTO((void));
                   1898: extern void pushlevel                          PROTO((int));
                   1899: extern void pushlevel_temporary                        PROTO((int));
                   1900: extern tree poplevel                           PROTO((int, int, int));
                   1901: extern void delete_block                       PROTO((tree));
                   1902: extern void insert_block                       PROTO((tree));
                   1903: extern void add_block_current_level            PROTO((tree));
                   1904: extern void set_block                          PROTO((tree));
                   1905: extern void pushlevel_class                    PROTO((void));
                   1906: extern tree poplevel_class                     PROTO((int));
                   1907: /* skip print_other_binding_stack and print_binding_level */
                   1908: extern void print_binding_stack                        PROTO((void));
                   1909: extern void push_to_top_level                  PROTO((void));
                   1910: extern void pop_from_top_level                 PROTO((void));
                   1911: extern void set_identifier_type_value          PROTO((tree, tree));
                   1912: extern void pop_everything                     PROTO((void));
                   1913: extern tree make_type_decl                     PROTO((tree, tree));
                   1914: extern void pushtag                            PROTO((tree, tree, int));
                   1915: extern tree make_anon_name                     PROTO((void));
                   1916: extern void clear_anon_tags                    PROTO((void));
                   1917: extern tree pushdecl                           PROTO((tree));
                   1918: extern tree pushdecl_top_level                 PROTO((tree));
                   1919: extern void push_class_level_binding           PROTO((tree, tree));
                   1920: extern void push_overloaded_decl_top_level     PROTO((tree, int));
                   1921: extern tree pushdecl_class_level               PROTO((tree));
                   1922: extern int overloaded_globals_p                        PROTO((tree));
                   1923: extern tree push_overloaded_decl               PROTO((tree, int));
                   1924: extern tree implicitly_declare                 PROTO((tree));
                   1925: extern tree lookup_label                       PROTO((tree));
                   1926: extern tree shadow_label                       PROTO((tree));
                   1927: extern tree define_label                       PROTO((char *, int, tree));
                   1928: extern void define_case_label                  PROTO((tree));
                   1929: extern tree getdecls                           PROTO((void));
                   1930: extern tree gettags                            PROTO((void));
                   1931: extern void set_current_level_tags_transparency        PROTO((int));
                   1932: extern tree typedecl_for_tag                   PROTO((tree));
                   1933: extern tree lookup_name                                PROTO((tree, int));
                   1934: extern tree lookup_name_current_level          PROTO((tree));
                   1935: extern void init_decl_processing               PROTO((void));
                   1936: /* skipped define_function */
                   1937: extern void shadow_tag                         PROTO((tree));
                   1938: extern int grok_ctor_properties                        PROTO((tree, tree));
                   1939: extern tree groktypename                       PROTO((tree));
                   1940: extern tree start_decl                         PROTO((tree, tree, int, tree));
                   1941: extern void finish_decl                                PROTO((tree, tree, tree, int));
                   1942: extern void expand_static_init                 PROTO((tree, tree));
                   1943: extern int complete_array_type                 PROTO((tree, tree, int));
                   1944: extern tree build_ptrmemfunc_type              PROTO((tree));
                   1945: extern tree grokdeclarator                     (); /* PROTO((tree, tree, enum decl_context, int, tree)); */
                   1946: extern int parmlist_is_exprlist                        PROTO((tree));
                   1947: extern tree xref_defn_tag                      PROTO((tree, tree, tree));
                   1948: extern tree xref_tag                           PROTO((tree, tree, tree, int));
                   1949: extern tree start_enum                         PROTO((tree));
                   1950: extern tree finish_enum                                PROTO((tree, tree));
                   1951: extern tree build_enumerator                   PROTO((tree, tree));
                   1952: extern tree grok_enum_decls                    PROTO((tree, tree));
                   1953: extern int start_function                      PROTO((tree, tree, tree, int));
                   1954: extern void store_parm_decls                   PROTO((void));
                   1955: extern void store_return_init                  PROTO((tree, tree));
                   1956: extern void finish_function                    PROTO((int, int));
                   1957: extern tree start_method                       PROTO((tree, tree, tree));
                   1958: extern tree finish_method                      PROTO((tree));
                   1959: extern void hack_incomplete_structures         PROTO((tree));
                   1960: extern tree maybe_build_cleanup                        PROTO((tree));
                   1961: extern void cplus_expand_expr_stmt             PROTO((tree));
                   1962: extern void finish_stmt                                PROTO((void));
                   1963: extern void pop_implicit_try_blocks            PROTO((tree));
                   1964: extern void push_exception_cleanup             PROTO((tree));
                   1965: extern void revert_static_member_fn            PROTO((tree *, tree *, tree *));
                   1966: 
                   1967: /* in decl2.c */
                   1968: extern int lang_decode_option                  PROTO((char *));
                   1969: extern tree grok_method_quals                  PROTO((tree, tree, tree));
                   1970: extern void grokclassfn                                PROTO((tree, tree, tree, enum overload_flags, tree));
                   1971: extern tree grok_alignof                       PROTO((tree));
                   1972: extern tree grok_array_decl                    PROTO((tree, tree));
                   1973: extern tree delete_sanity                      PROTO((tree, tree, int, int));
                   1974: extern void check_classfn                      PROTO((tree, tree, tree));
                   1975: extern tree grokfield                          PROTO((tree, tree, tree, tree, tree));
                   1976: extern tree grokbitfield                       PROTO((tree, tree, tree));
                   1977: extern tree groktypefield                      PROTO((tree, tree));
                   1978: extern tree grokoptypename                     PROTO((tree, tree));
                   1979: extern tree build_push_scope                   PROTO((tree, tree));
                   1980: extern tree constructor_name_full              PROTO((tree));
                   1981: extern tree constructor_name                   PROTO((tree));
                   1982: extern void setup_vtbl_ptr                     PROTO((void));
                   1983: extern void mark_inline_for_output             PROTO((tree));
                   1984: extern void clear_temp_name                    PROTO((void));
                   1985: extern tree get_temp_name                      PROTO((tree, int));
                   1986: extern tree get_temp_regvar                    PROTO((tree, tree));
                   1987: extern void finish_anon_union                  PROTO((tree));
                   1988: extern tree finish_table                       PROTO((tree, tree, tree, int));
                   1989: extern void finish_builtin_type                        PROTO((tree, char *, tree *, int, tree));
                   1990: extern tree coerce_new_type                    PROTO((tree));
                   1991: extern tree coerce_delete_type                 PROTO((tree));
                   1992: extern void walk_vtables                       PROTO((void (*)(), void (*)()));
                   1993: extern void walk_sigtables                     PROTO((void (*)(), void (*)()));
                   1994: extern void finish_file                                PROTO((void));
                   1995: extern void warn_if_unknown_interface          PROTO((void));
                   1996: extern tree grok_x_components                  PROTO((tree, tree));
                   1997: extern tree reparse_absdcl_as_expr             PROTO((tree, tree));
                   1998: extern tree reparse_absdcl_as_casts            PROTO((tree, tree));
                   1999: extern tree reparse_decl_as_expr               PROTO((tree, tree));
                   2000: extern tree finish_decl_parsing                        PROTO((tree));
                   2001: extern tree lookup_name_nonclass               PROTO((tree));
                   2002: extern tree check_cp_case_value                        PROTO((tree));
                   2003: 
                   2004: /* in edsel.c */
                   2005: 
                   2006: /* in except.c */
                   2007: 
                   2008: extern void start_protect                      PROTO((void));
                   2009: extern void end_protect                                PROTO((tree));
                   2010: extern void expand_exception_blocks            PROTO((void));
                   2011: extern void expand_start_try_stmts             PROTO((void));
                   2012: extern void expand_end_try_stmts               PROTO((void));
                   2013: extern void expand_start_all_catch             PROTO((void));
                   2014: extern void expand_end_all_catch               PROTO((void));
                   2015: extern void start_catch_block                  PROTO((tree, tree));
                   2016: extern void end_catch_block                    PROTO((void));
                   2017: extern void expand_throw                       PROTO((tree));
                   2018: extern int build_exception_table               PROTO((void));
                   2019: extern tree build_throw                                PROTO((tree));
                   2020: extern void init_exception_processing          PROTO((void));
                   2021: 
                   2022: /* in expr.c */
                   2023: /* skip cplus_expand_expr */
                   2024: extern void init_cplus_expand                  PROTO((void));
                   2025: extern void fixup_result_decl                  PROTO((tree, struct rtx_def *));
                   2026: extern int decl_in_memory_p                    PROTO((tree));
                   2027: 
                   2028: /* in gc.c */
                   2029: extern int type_needs_gc_entry                 PROTO((tree));
                   2030: extern int value_safe_from_gc                  PROTO((tree, tree));
                   2031: extern void build_static_gc_entry              PROTO((tree, tree));
                   2032: extern tree protect_value_from_gc              PROTO((tree, tree));
                   2033: extern tree build_headof                       PROTO((tree));
                   2034: extern tree build_classof                      PROTO((tree));
                   2035: extern tree build_t_desc                       PROTO((tree, int));
                   2036: extern tree build_i_desc                       PROTO((tree));
                   2037: extern tree build_m_desc                       PROTO((tree));
                   2038: extern void expand_gc_prologue_and_epilogue    PROTO((void));
                   2039: extern void lang_expand_end_bindings           PROTO((struct rtx_def *, struct rtx_def *));
                   2040: extern void init_gc_processing                 PROTO((void));
                   2041: extern tree build_typeid                       PROTO((tree));
                   2042: extern tree get_typeid                         PROTO((tree));
                   2043: extern tree build_dynamic_cast                 PROTO((tree, tree));
                   2044: 
                   2045: /* in init.c */
                   2046: extern void emit_base_init                     PROTO((tree, int));
                   2047: extern void check_base_init                    PROTO((tree));
                   2048: extern void expand_direct_vtbls_init           PROTO((tree, tree, int, int, tree));
                   2049: extern void do_member_init                     PROTO((tree, tree, tree));
                   2050: extern void expand_member_init                 PROTO((tree, tree, tree));
                   2051: extern void expand_aggr_init                   PROTO((tree, tree, int));
                   2052: extern int is_aggr_typedef                     PROTO((tree, int));
                   2053: extern tree get_aggr_from_typedef              PROTO((tree, int));
                   2054: extern tree get_type_value                     PROTO((tree));
                   2055: extern tree build_member_call                  PROTO((tree, tree, tree));
                   2056: extern tree build_offset_ref                   PROTO((tree, tree));
                   2057: extern tree get_member_function                        PROTO((tree *, tree, tree));
                   2058: extern tree get_member_function_from_ptrfunc   PROTO((tree *, tree, tree));
                   2059: extern tree resolve_offset_ref                 PROTO((tree));
                   2060: extern tree decl_constant_value                        PROTO((tree));
                   2061: extern int is_friend_type                      PROTO((tree, tree));
                   2062: extern int is_friend                           PROTO((tree, tree));
                   2063: extern void make_friend_class                  PROTO((tree, tree));
                   2064: extern tree do_friend                          PROTO((tree, tree, tree, tree, enum overload_flags, tree));
                   2065: extern void embrace_waiting_friends            PROTO((tree));
                   2066: extern tree build_builtin_call                 PROTO((tree, tree, tree));
                   2067: extern tree build_new                          PROTO((tree, tree, tree, int));
                   2068: extern tree expand_vec_init                    PROTO((tree, tree, tree, tree, int));
                   2069: extern tree build_x_delete                     PROTO((tree, tree, int, tree));
                   2070: extern tree build_delete                       PROTO((tree, tree, tree, int, int));
                   2071: extern tree build_vbase_delete                 PROTO((tree, tree));
                   2072: extern tree build_vec_delete                   PROTO((tree, tree, tree, tree, tree, int));
                   2073: 
                   2074: /* in input.c */
                   2075: 
                   2076: /* in lex.c */
                   2077: extern tree make_pointer_declarator            PROTO((tree, tree));
                   2078: extern tree make_reference_declarator          PROTO((tree, tree));
                   2079: extern char *operator_name_string              PROTO((tree));
                   2080: extern void lang_init                          PROTO((void));
                   2081: extern void lang_finish                                PROTO((void));
                   2082: extern void init_filename_times                        PROTO((void));
                   2083: extern void reinit_lang_specific               PROTO((void));
                   2084: extern void init_lex                           PROTO((void));
                   2085: extern void reinit_parse_for_function          PROTO((void));
                   2086: extern int *init_parse                         PROTO((void));
                   2087: extern void print_parse_statistics             PROTO((void));
                   2088: extern void extract_interface_info             PROTO((void));
                   2089: extern void set_vardecl_interface_info         PROTO((tree, tree));
                   2090: extern void do_pending_inlines                 PROTO((void));
                   2091: extern void process_next_inline                        PROTO((tree));
                   2092: /* skip restore_pending_input */
                   2093: extern void yyungetc                           PROTO((int, int));
                   2094: extern void reinit_parse_for_method            PROTO((int, tree));
                   2095: #if 0
                   2096: extern void reinit_parse_for_block             PROTO((int, struct obstack *, int));
                   2097: #endif
                   2098: extern tree cons_up_default_function           PROTO((tree, tree, int));
                   2099: extern void check_for_missing_semicolon                PROTO((tree));
                   2100: extern void note_got_semicolon                 PROTO((tree));
                   2101: extern void note_list_got_semicolon            PROTO((tree));
                   2102: extern int check_newline                       PROTO((void));
                   2103: extern void dont_see_typename                  PROTO((void));
                   2104: extern int identifier_type                     PROTO((tree));
                   2105: extern void see_typename                       PROTO((void));
                   2106: extern tree do_identifier                      PROTO((tree));
                   2107: extern tree identifier_typedecl_value          PROTO((tree));
                   2108: extern int real_yylex                          PROTO((void));
                   2109: extern tree build_lang_decl                    PROTO((enum tree_code, tree, tree));
                   2110: extern tree build_lang_field_decl              PROTO((enum tree_code, tree, tree));
                   2111: extern void copy_lang_decl                     PROTO((tree));
                   2112: extern tree make_lang_type                     PROTO((enum tree_code));
                   2113: extern void copy_decl_lang_specific            PROTO((tree));
                   2114: extern void dump_time_statistics               PROTO((void));
                   2115: /* extern void compiler_error                  PROTO((char *, HOST_WIDE_INT, HOST_WIDE_INT)); */
                   2116: extern void compiler_error_with_decl           PROTO((tree, char *));
                   2117: extern void yyerror                            PROTO((char *));
                   2118: 
                   2119: /* in errfn.c */
                   2120: extern void cp_error                           ();
                   2121: extern void cp_error_at                                ();
                   2122: extern void cp_warning                         ();
                   2123: extern void cp_warning_at                      ();
                   2124: extern void cp_pedwarn                         ();
                   2125: extern void cp_pedwarn_at                      ();
                   2126: extern void cp_compiler_error                  ();
                   2127: extern void cp_sprintf                         ();
                   2128: 
                   2129: /* in error.c */
                   2130: extern void init_error                         PROTO((void));
                   2131: extern char *fndecl_as_string                  PROTO((tree, tree, int));
                   2132: extern char *type_as_string                    PROTO((tree, int));
                   2133: extern char *args_as_string                    PROTO((tree, int));
                   2134: extern char *decl_as_string                    PROTO((tree, int));
                   2135: extern char *expr_as_string                    PROTO((tree, int));
                   2136: extern char *code_as_string                    PROTO((enum tree_code, int));
                   2137: extern char *language_as_string                        PROTO((enum languages, int));
                   2138: extern char *parm_as_string                    PROTO((int, int));
                   2139: extern char *op_as_string                      PROTO((enum tree_code, int));
                   2140: 
                   2141: /* in method.c */
                   2142: extern void init_method                                PROTO((void));
                   2143: extern tree make_anon_parm_name                        PROTO((void));
                   2144: extern void clear_anon_parm_name               PROTO((void));
                   2145: extern void do_inline_function_hair            PROTO((tree, tree));
                   2146: /* skip report_type_mismatch */
                   2147: extern char *build_overload_name               PROTO((tree, int, int));
                   2148: extern tree build_static_name                  PROTO((tree, tree));
                   2149: extern tree cplus_exception_name               PROTO((tree));
                   2150: extern tree build_decl_overload                        PROTO((tree, tree, int));
                   2151: extern tree build_typename_overload            PROTO((tree));
                   2152: extern tree build_t_desc_overload              PROTO((tree));
                   2153: extern void declare_overloaded                 PROTO((tree));
                   2154: #ifdef NO_AUTO_OVERLOAD
                   2155: extern int is_overloaded                       PROTO((tree));
                   2156: #endif
                   2157: extern tree build_opfncall                     PROTO((enum tree_code, int, tree, tree, tree));
                   2158: extern tree hack_identifier                    PROTO((tree, tree, int));
                   2159: extern tree build_component_type_expr          PROTO((tree, tree, tree, int));
                   2160: 
                   2161: /* in pt.c */
                   2162: extern void begin_template_parm_list           PROTO((void));
                   2163: extern tree process_template_parm              PROTO((tree, tree));
                   2164: extern tree end_template_parm_list             PROTO((tree));
                   2165: extern void end_template_decl                  PROTO((tree, tree, tree, int));
                   2166: extern tree lookup_template_class              PROTO((tree, tree, tree));
                   2167: extern void push_template_decls                        PROTO((tree, tree, int));
                   2168: extern void pop_template_decls                 PROTO((tree, tree, int));
                   2169: extern int uses_template_parms                 PROTO((tree));
                   2170: extern void instantiate_member_templates       PROTO((tree));
                   2171: extern tree instantiate_class_template         PROTO((tree, int));
                   2172: extern tree instantiate_template               PROTO((tree, tree *));
                   2173: extern void undo_template_name_overload                PROTO((tree, int));
                   2174: extern void overload_template_name             PROTO((tree, int));
                   2175: extern void end_template_instantiation         PROTO((tree));
                   2176: extern void reinit_parse_for_template          PROTO((int, tree, tree));
                   2177: extern int type_unification                    PROTO((tree, tree *, tree, tree, int *, int));
                   2178: extern int do_pending_expansions               PROTO((void));
                   2179: extern void do_pending_templates               PROTO((void));
                   2180: struct tinst_level *tinst_for_decl             PROTO((void));
                   2181: extern void do_function_instantiation          PROTO((tree, tree, tree));
                   2182: extern void do_type_instantiation              PROTO((tree, tree));
                   2183: extern tree create_nested_upt                  PROTO((tree, tree));
                   2184: 
                   2185: /* in search.c */
                   2186: extern tree make_memoized_table_entry          PROTO((tree, tree, int));
                   2187: extern void push_memoized_context              PROTO((tree, int));
                   2188: extern void pop_memoized_context               PROTO((int));
                   2189: extern tree get_binfo                          PROTO((tree, tree, int));
                   2190: extern int get_base_distance                   PROTO((tree, tree, int, tree *));
                   2191: extern enum access_type compute_access         PROTO((tree, tree));
                   2192: extern tree lookup_field                       PROTO((tree, tree, int, int));
                   2193: extern tree lookup_nested_field                        PROTO((tree, int));
                   2194: extern tree lookup_fnfields                    PROTO((tree, tree, int));
                   2195: extern tree lookup_nested_tag                  PROTO((tree, tree));
                   2196: extern HOST_WIDE_INT breadth_first_search      PROTO((tree, int (*)(), int (*)()));
                   2197: extern int tree_needs_constructor_p            PROTO((tree, int));
                   2198: extern int tree_has_any_destructor_p           PROTO((tree, int));
                   2199: extern tree get_matching_virtual               PROTO((tree, tree, int));
                   2200: extern tree get_abstract_virtuals              PROTO((tree));
                   2201: extern tree get_baselinks                      PROTO((tree, tree, tree));
                   2202: extern tree next_baselink                      PROTO((tree));
                   2203: extern tree init_vbase_pointers                        PROTO((tree, tree));
                   2204: extern void expand_indirect_vtbls_init         PROTO((tree, tree, tree, int));
                   2205: extern void clear_search_slots                 PROTO((tree));
                   2206: extern tree get_vbase_types                    PROTO((tree));
                   2207: extern void build_mi_matrix                    PROTO((tree));
                   2208: extern void free_mi_matrix                     PROTO((void));
                   2209: extern void build_mi_virtuals                  PROTO((int, int));
                   2210: extern void add_mi_virtuals                    PROTO((int, tree));
                   2211: extern void report_ambiguous_mi_virtuals       PROTO((int, tree));
                   2212: extern void note_debug_info_needed             PROTO((tree));
                   2213: extern void push_class_decls                   PROTO((tree));
                   2214: extern void pop_class_decls                    PROTO((tree));
                   2215: extern void unuse_fields                       PROTO((tree));
                   2216: extern void unmark_finished_struct             PROTO((tree));
                   2217: extern void print_search_statistics            PROTO((void));
                   2218: extern void init_search_processing             PROTO((void));
                   2219: extern void reinit_search_statistics           PROTO((void));
                   2220: extern tree current_scope                      PROTO((void));
                   2221: 
                   2222: /* in sig.c */
                   2223: extern tree build_signature_pointer_type       PROTO((tree, int, int));
                   2224: extern tree build_signature_reference_type     PROTO((tree, int, int));
                   2225: extern tree build_signature_pointer_constructor        PROTO((tree, tree));
                   2226: extern tree build_signature_method_call                PROTO((tree, tree, tree, tree));
                   2227: extern tree build_optr_ref                     PROTO((tree));
                   2228: extern tree build_sptr_ref                     PROTO((tree));
                   2229: extern tree build_vptr_ref                     PROTO((tree));
                   2230: 
                   2231: /* in spew.c */
                   2232: extern void init_spew                          PROTO((void));
                   2233: extern int yylex                               PROTO((void));
                   2234: extern tree arbitrate_lookup                   PROTO((tree, tree, tree));
                   2235: 
                   2236: /* in tree.c */
                   2237: extern int lvalue_p                            PROTO((tree));
                   2238: extern int lvalue_or_else                      PROTO((tree, char *));
                   2239: extern tree build_cplus_new                    PROTO((tree, tree, int));
                   2240: extern tree break_out_cleanups                 PROTO((tree));
                   2241: extern tree break_out_calls                    PROTO((tree));
                   2242: extern tree build_cplus_method_type            PROTO((tree, tree, tree));
                   2243: extern tree build_cplus_staticfn_type          PROTO((tree, tree, tree));
                   2244: extern tree build_cplus_array_type             PROTO((tree, tree));
                   2245: extern void propagate_binfo_offsets            PROTO((tree, tree));
                   2246: extern int layout_vbasetypes                   PROTO((tree, int));
                   2247: extern tree layout_basetypes                   PROTO((tree, tree));
                   2248: extern int list_hash                           PROTO((tree));
                   2249: extern tree list_hash_lookup                   PROTO((int, tree));
                   2250: extern void list_hash_add                      PROTO((int, tree));
                   2251: extern tree list_hash_canon                    PROTO((int, tree));
                   2252: extern tree hash_tree_cons                     PROTO((int, int, int, tree, tree, tree));
                   2253: extern tree hash_tree_chain                    PROTO((tree, tree));
                   2254: extern tree hash_chainon                       PROTO((tree, tree));
                   2255: extern tree get_decl_list                      PROTO((tree));
                   2256: extern tree list_hash_lookup_or_cons           PROTO((tree));
                   2257: extern tree make_binfo                         PROTO((tree, tree, tree, tree, tree));
                   2258: extern tree copy_binfo                         PROTO((tree));
                   2259: extern tree binfo_value                                PROTO((tree, tree));
                   2260: extern tree reverse_path                       PROTO((tree));
                   2261: extern tree virtual_member                     PROTO((tree, tree));
                   2262: extern void debug_binfo                                PROTO((tree));
                   2263: extern int decl_list_length                    PROTO((tree));
                   2264: extern int count_functions                     PROTO((tree));
                   2265: extern tree decl_value_member                  PROTO((tree, tree));
                   2266: extern int is_overloaded_fn                    PROTO((tree));
                   2267: extern tree get_first_fn                       PROTO((tree));
                   2268: extern tree fnaddr_from_vtable_entry           PROTO((tree));
                   2269: extern void set_fnaddr_from_vtable_entry       PROTO((tree, tree));
                   2270: extern tree function_arg_chain                 PROTO((tree));
                   2271: extern int promotes_to_aggr_type               PROTO((tree, enum tree_code));
                   2272: extern int is_aggr_type_2                      PROTO((tree, tree));
                   2273: extern void message_2_types                    PROTO((void (*)(), char *, tree, tree));
                   2274: extern char *lang_printable_name               PROTO((tree));
                   2275: extern tree build_exception_variant            PROTO((tree, tree, tree));
                   2276: extern tree copy_to_permanent                  PROTO((tree));
                   2277: extern void print_lang_statistics              PROTO((void));
                   2278: /* skip __eprintf */
                   2279: extern tree array_type_nelts_total             PROTO((tree));
                   2280: extern tree array_type_nelts_top               PROTO((tree));
                   2281: 
                   2282: /* in typeck.c */
                   2283: extern tree bool_truthvalue_conversion         PROTO((tree));
                   2284: extern tree target_type                                PROTO((tree));
                   2285: extern tree require_complete_type              PROTO((tree));
                   2286: extern int type_unknown_p                      PROTO((tree));
                   2287: extern int fntype_p                            PROTO((tree));
                   2288: extern tree require_instantiated_type          PROTO((tree, tree, tree));
                   2289: extern tree commonparms                                PROTO((tree, tree));
                   2290: extern tree common_type                                PROTO((tree, tree));
                   2291: extern int compexcepttypes                     PROTO((tree, tree, int));
                   2292: extern int comptypes                           PROTO((tree, tree, int));
                   2293: extern int comp_target_types                   PROTO((tree, tree, int));
                   2294: extern tree common_base_types                  PROTO((tree, tree));
                   2295: extern int compparms                           PROTO((tree, tree, int));
                   2296: extern int comp_target_types                   PROTO((tree, tree, int));
                   2297: extern int self_promoting_args_p               PROTO((tree));
                   2298: extern tree unsigned_type                      PROTO((tree));
                   2299: extern tree signed_type                                PROTO((tree));
                   2300: extern tree signed_or_unsigned_type            PROTO((int, tree));
                   2301: extern tree c_sizeof                           PROTO((tree));
                   2302: extern tree c_sizeof_nowarn                    PROTO((tree));
                   2303: extern tree c_alignof                          PROTO((tree));
                   2304: extern tree default_conversion                 PROTO((tree));
                   2305: extern tree build_object_ref                   PROTO((tree, tree, tree));
                   2306: extern tree build_component_ref_1              PROTO((tree, tree, int));
                   2307: extern tree build_component_ref                        PROTO((tree, tree, tree, int));
                   2308: extern tree build_x_indirect_ref               PROTO((tree, char *));
                   2309: extern tree build_indirect_ref                 PROTO((tree, char *));
                   2310: extern tree build_x_array_ref                  PROTO((tree, tree));
                   2311: extern tree build_array_ref                    PROTO((tree, tree));
                   2312: extern tree build_x_function_call              PROTO((tree, tree, tree));
                   2313: extern tree build_function_call_real           PROTO((tree, tree, int, int));
                   2314: extern tree build_function_call                        PROTO((tree, tree));
                   2315: extern tree build_function_call_maybe          PROTO((tree, tree));
                   2316: extern tree convert_arguments                  PROTO((tree, tree, tree, tree, int));
                   2317: extern tree build_x_binary_op                  PROTO((enum tree_code, tree, tree));
                   2318: extern tree build_binary_op                    PROTO((enum tree_code, tree, tree, int));
                   2319: extern tree build_binary_op_nodefault          PROTO((enum tree_code, tree, tree, enum tree_code));
                   2320: extern tree build_component_addr               PROTO((tree, tree, char *));
                   2321: extern tree build_x_unary_op                   PROTO((enum tree_code, tree));
                   2322: extern tree build_unary_op                     PROTO((enum tree_code, tree, int));
                   2323: extern tree unary_complex_lvalue               PROTO((enum tree_code, tree));
                   2324: extern int mark_addressable                    PROTO((tree));
                   2325: extern tree build_x_conditional_expr           PROTO((tree, tree, tree));
                   2326: extern tree build_conditional_expr             PROTO((tree, tree, tree));
                   2327: extern tree build_x_compound_expr              PROTO((tree));
                   2328: extern tree build_compound_expr                        PROTO((tree));
                   2329: extern tree build_static_cast                  PROTO((tree, tree));
                   2330: extern tree build_reinterpret_cast             PROTO((tree, tree));
                   2331: extern tree build_const_cast                   PROTO((tree, tree));
                   2332: extern tree build_c_cast                       PROTO((tree, tree));
                   2333: extern tree build_modify_expr                  PROTO((tree, enum tree_code, tree));
                   2334: extern int language_lvalue_valid               PROTO((tree));
                   2335: extern void warn_for_assignment                        PROTO((char *, char *, char *, tree, int, int));
                   2336: extern tree convert_for_initialization         PROTO((tree, tree, tree, int, char *, tree, int));
                   2337: extern void c_expand_asm_operands              PROTO((tree, tree, tree, tree, int, char *, int));
                   2338: extern void c_expand_return                    PROTO((tree));
                   2339: extern tree c_expand_start_case                        PROTO((tree));
                   2340: extern tree build_component_ref                        PROTO((tree, tree, tree, int));
                   2341: extern tree build_ptrmemfunc                   PROTO((tree, tree, int));
                   2342: 
                   2343: /* in typeck2.c */
                   2344: extern tree error_not_base_type                        PROTO((tree, tree));
                   2345: extern tree binfo_or_else                      PROTO((tree, tree));
                   2346: extern void error_with_aggr_type               (); /* PROTO((tree, char *, HOST_WIDE_INT)); */
                   2347: extern void readonly_error                     PROTO((tree, char *, int));
                   2348: extern void abstract_virtuals_error            PROTO((tree, tree));
                   2349: extern void incomplete_type_error              PROTO((tree, tree));
                   2350: extern void my_friendly_abort                  PROTO((int));
                   2351: extern void my_friendly_assert                 PROTO((int, int));
                   2352: extern tree store_init_value                   PROTO((tree, tree));
                   2353: extern tree digest_init                                PROTO((tree, tree, tree *));
                   2354: extern tree build_scoped_ref                   PROTO((tree, tree));
                   2355: extern tree build_x_arrow                      PROTO((tree));
                   2356: extern tree build_m_component_ref              PROTO((tree, tree));
                   2357: extern tree build_functional_cast              PROTO((tree, tree));
                   2358: extern char *enum_name_string                  PROTO((tree, tree));
                   2359: extern void report_case_error                  PROTO((int, tree, tree, tree));
                   2360: 
                   2361: /* in xref.c */
                   2362: extern void GNU_xref_begin                     PROTO((char *));
                   2363: extern void GNU_xref_end                       PROTO((int));
                   2364: extern void GNU_xref_file                      PROTO((char *));
                   2365: extern void GNU_xref_start_scope               PROTO((HOST_WIDE_INT));
                   2366: extern void GNU_xref_end_scope                 PROTO((HOST_WIDE_INT, HOST_WIDE_INT, int, int, int));
                   2367: extern void GNU_xref_ref                       PROTO((tree, char *));
                   2368: extern void GNU_xref_decl                      PROTO((tree, tree));
                   2369: extern void GNU_xref_call                      PROTO((tree, char *));
                   2370: extern void GNU_xref_function                  PROTO((tree, tree));
                   2371: extern void GNU_xref_assign                    PROTO((tree));
                   2372: extern void GNU_xref_hier                      PROTO((char *, char *, int, int, int));
                   2373: extern void GNU_xref_member                    PROTO((tree, tree));
                   2374: 
                   2375: /* -- end of C++ */
                   2376: 
                   2377: #endif /* not _CP_TREE_H */

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