reactos/include/msvcrt/alloc.h

   1 /*
   2  * alloc.h
   3  *
   4  * Memory management functions. Because most of these functions are
   5  * actually declared in stdlib.h I have decided to simply include that
   6  * header file. This file is included by malloc.h. My head hurts...
   7  *
   8  * NOTE: In the version of the Standard C++ Library from Cygnus there
   9  * is also an alloc.h which needs to be on your include path. Most of
  10  * the time I think the most sensible option would be to get rid of
  11  * this file.
  12  *
  13  * This file is part of the Mingw32 package.
  14  *
  15  * Contributors:
  16  *  Created by Colin Peters <colin@bird.fu.is.saga-u.ac.jp>
  17  *
  18  *  THIS SOFTWARE IS NOT COPYRIGHTED
  19  *
  20  *  This source code is offered for use in the public domain. You may
  21  *  use, modify or distribute it freely.
  22  *
  23  *  This code is distributed in the hope that it will be useful but
  24  *  WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
  25  *  DISCLAMED. This includes but is not limited to warranties of
  26  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  27  *
  28  * $Revision: 1.4 $
  29  * $Author: chorns $
  30  * $Date: 2002/09/08 10:22:30 $
  31  *
  32  */
  33
  34 #ifndef __STRICT_ANSI__
  35
  36 #ifndef _ALLOC_H_
  37 #define _ALLOC_H_
  38
  39 #include <msvcrt/stdlib.h>
  40
  41 #ifndef RC_INVOKED
  42
  43 #ifdef  __cplusplus
  44 extern "C" {
  45 #endif
  46
  47 /*
  48  * The structure used to walk through the heap with _heapwalk.
  49  * TODO: This is a guess at the internals of this structure.
  50  */
  51 typedef struct _heapinfo
  52 {
  53         void*           ptr;
  54         unsigned int    size;
  55         int             in_use;
  56 } _HEAPINFO;
  57
  58 int     _heapwalk (_HEAPINFO* pHeapinfo);
  59
  60 #ifdef __GNUC__
  61 #ifdef USE_C_ALLOCA
  62 void *  C_alloca(size_t size);
  63 #define _alloca(x)      C_alloca(x)
  64 #else   /* USE_C_ALLOCA */
  65 #define _alloca(x)      __builtin_alloca(x)
  66 #endif  /* USE_C_ALLOCA */
  67 #else   /* __GNUC__ */
  68 void *  _alloca(size_t size);
  69 #endif  /* __GNUC__ */
  70
  71 #ifndef _NO_OLDNAMES
  72 #define heapwalk(x)     _heapwalk(x)
  73 #define alloca(s)       _alloca(s)
  74 #endif  /* Not _NO_OLDNAMES */
  75
  76 #ifdef  __cplusplus
  77 }
  78 #endif
  79
  80 #endif  /* Not RC_INVOKED */
  81
  82 #endif  /* Not _ALLOC_H_ */
  83
  84 #endif  /* Not __STRICT_ANSI__ */
  85