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Annotation of sbbs/javascript/include/mozilla/js/jsstddef.h, revision 1.1.1.1

1.1       root        1: /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
                      2:  *
                      3:  * The contents of this file are subject to the Netscape Public
                      4:  * License Version 1.1 (the "License"); you may not use this file
                      5:  * except in compliance with the License. You may obtain a copy of
                      6:  * the License at http://www.mozilla.org/NPL/
                      7:  *
                      8:  * Software distributed under the License is distributed on an "AS
                      9:  * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
                     10:  * implied. See the License for the specific language governing
                     11:  * rights and limitations under the License.
                     12:  *
                     13:  * The Original Code is Mozilla Communicator client code, released
                     14:  * March 31, 1998.
                     15:  *
                     16:  * The Initial Developer of the Original Code is Netscape Communications
                     17:  * Corporation.  Portions created by Netscape are
                     18:  * Copyright (C) 1998 Netscape Communications Corporation. All
                     19:  * Rights Reserved.
                     20:  *
                     21:  * Contributor(s): 
                     22:  *
                     23:  * Alternatively, the contents of this file may be used under the
                     24:  * terms of the GNU Public License (the "GPL"), in which case the
                     25:  * provisions of the GPL are applicable instead of those above.
                     26:  * If you wish to allow use of your version of this file only
                     27:  * under the terms of the GPL and not to allow others to use your
                     28:  * version of this file under the NPL, indicate your decision by
                     29:  * deleting the provisions above and replace them with the notice
                     30:  * and other provisions required by the GPL.  If you do not delete
                     31:  * the provisions above, a recipient may use your version of this
                     32:  * file under either the NPL or the GPL.
                     33:  */
                     34: 
                     35: /*
                     36:  * stddef inclusion here to first declare ptrdif as a signed long instead of a
                     37:  * signed int.
                     38:  */
                     39: 
                     40: #ifdef _WINDOWS
                     41: # ifndef XP_WIN
                     42: # define XP_WIN
                     43: # endif
                     44: #if defined(_WIN32) || defined(WIN32)
                     45: # ifndef XP_WIN32
                     46: # define XP_WIN32
                     47: # endif
                     48: #else
                     49: # ifndef XP_WIN16
                     50: # define XP_WIN16
                     51: # endif
                     52: #endif
                     53: #endif
                     54: 
                     55: #ifdef XP_WIN16
                     56: #ifndef _PTRDIFF_T_DEFINED
                     57: typedef long ptrdiff_t;
                     58: 
                     59: /*
                     60:  * The Win16 compiler treats pointer differences as 16-bit signed values.
                     61:  * This macro allows us to treat them as 17-bit signed values, stored in
                     62:  * a 32-bit type.
                     63:  */
                     64: #define PTRDIFF(p1, p2, type)                                 \
                     65:     ((((unsigned long)(p1)) - ((unsigned long)(p2))) / sizeof(type))
                     66: 
                     67: #define _PTRDIFF_T_DEFINED
                     68: #endif /*_PTRDIFF_T_DEFINED*/
                     69: #else /*WIN16*/
                     70: 
                     71: #define PTRDIFF(p1, p2, type)                                 \
                     72:        ((p1) - (p2))
                     73: 
                     74: #endif
                     75: 
                     76: #include <stddef.h>
                     77: 
                     78: 

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