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Annotation of sbbs/include/mozilla/js/jsstddef.h, revision 1.1.1.2

1.1       root        1: /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
                      2:  *
                      3:  * ***** BEGIN LICENSE BLOCK *****
                      4:  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
                      5:  *
                      6:  * The contents of this file are subject to the Mozilla Public License Version
                      7:  * 1.1 (the "License"); you may not use this file except in compliance with
                      8:  * the License. You may obtain a copy of the License at
                      9:  * http://www.mozilla.org/MPL/
                     10:  *
                     11:  * Software distributed under the License is distributed on an "AS IS" basis,
                     12:  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
                     13:  * for the specific language governing rights and limitations under the
                     14:  * License.
                     15:  *
                     16:  * The Original Code is Mozilla Communicator client code, released
                     17:  * March 31, 1998.
                     18:  *
                     19:  * The Initial Developer of the Original Code is
                     20:  * Netscape Communications Corporation.
                     21:  * Portions created by the Initial Developer are Copyright (C) 1998
                     22:  * the Initial Developer. All Rights Reserved.
                     23:  *
                     24:  * Contributor(s):
                     25:  *
                     26:  * Alternatively, the contents of this file may be used under the terms of
                     27:  * either of the GNU General Public License Version 2 or later (the "GPL"),
                     28:  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
                     29:  * in which case the provisions of the GPL or the LGPL are applicable instead
                     30:  * of those above. If you wish to allow use of your version of this file only
                     31:  * under the terms of either the GPL or the LGPL, and not to allow others to
                     32:  * use your version of this file under the terms of the MPL, indicate your
                     33:  * decision by deleting the provisions above and replace them with the notice
                     34:  * and other provisions required by the GPL or the LGPL. If you do not delete
                     35:  * the provisions above, a recipient may use your version of this file under
                     36:  * the terms of any one of the MPL, the GPL or the LGPL.
                     37:  *
                     38:  * ***** END LICENSE BLOCK ***** */
                     39: 
                     40: /*
                     41:  * stddef inclusion here to first declare ptrdif as a signed long instead of a
                     42:  * signed int.
                     43:  */
                     44: 
                     45: #ifdef _WINDOWS
                     46: # ifndef XP_WIN
                     47: # define XP_WIN
                     48: # endif
                     49: #if defined(_WIN32) || defined(WIN32)
                     50: # ifndef XP_WIN32
                     51: # define XP_WIN32
                     52: # endif
                     53: #else
                     54: # ifndef XP_WIN16
                     55: # define XP_WIN16
                     56: # endif
                     57: #endif
                     58: #endif
                     59: 
                     60: #ifdef XP_WIN16
                     61: #ifndef _PTRDIFF_T_DEFINED
                     62: typedef long ptrdiff_t;
                     63: 
                     64: /*
                     65:  * The Win16 compiler treats pointer differences as 16-bit signed values.
                     66:  * This macro allows us to treat them as 17-bit signed values, stored in
                     67:  * a 32-bit type.
                     68:  */
                     69: #define PTRDIFF(p1, p2, type)                                 \
                     70:     ((((unsigned long)(p1)) - ((unsigned long)(p2))) / sizeof(type))
                     71: 
                     72: #define _PTRDIFF_T_DEFINED
                     73: #endif /*_PTRDIFF_T_DEFINED*/
                     74: #else /*WIN16*/
                     75: 
                     76: #define PTRDIFF(p1, p2, type)                                 \
1.1.1.2 ! root       77:         ((p1) - (p2))
1.1       root       78: 
                     79: #endif
                     80: 
                     81: #include <stddef.h>
                     82: 
                     83: 

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