mdw@git.distorted.org.uk Git - mLib/blob - alloc.h

   1 /* -*-c-*-
   2  *
   3  * $Id: alloc.h,v 1.2 1999/05/05 18:50:31 mdw Exp $
   4  *
   5  * Memory allocation functions
   6  *
   7  * (c) 1998 Straylight/Edgeware
   8  */
   9
  10 /*----- Licensing notice --------------------------------------------------*
  11  *
  12  * This file is part of the mLib utilities library.
  13  *
  14  * mLib is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU Library General Public License as
  16  * published by the Free Software Foundation; either version 2 of the
  17  * License, or (at your option) any later version.
  18  *
  19  * mLib is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  * GNU Library General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU Library General Public
  25  * License along with mLib; if not, write to the Free Software
  26  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  27  */
  28
  29 /*----- Revision history --------------------------------------------------*
  30  *
  31  * $Log: alloc.h,v $
  32  * Revision 1.2  1999/05/05 18:50:31  mdw
  33  * Change licensing conditions to LGPL.
  34  *
  35  * Revision 1.1.1.1  1998/06/17 23:44:42  mdw
  36  * Initial version of mLib
  37  *
  38  */
  39
  40 #ifndef ALLOC_H
  41 #define ALLOC_H
  42
  43 #ifdef __cplusplus
  44   extern "C" {
  45 #endif
  46
  47 #include <stddef.h>
  48
  49 /*----- Functions provided ------------------------------------------------*/
  50
  51 /* --- @xmalloc@ --- *
  52  *
  53  * Arguments:   @size_t sz@ = size of block to allocate
  54  *
  55  * Returns:     Pointer to allocated block.
  56  *
  57  * Use:         Allocates memory.  If there's not enough memory, the
  58  *              exception @EXC_NOMEM@ is thrown.
  59  */
  60
  61 extern void *xmalloc(size_t /*sz*/);
  62
  63 /* --- @xstrdup@ --- *
  64  *
  65  * Arguments:   @const char *s@ = pointer to a string
  66  *
  67  * Returns:     Pointer to a copy of the string.
  68  *
  69  * Use:         Copies a string (like @strdup@ would, if it existed).  If
  70  *              there's not enough memory, the exception @EXC_NOMEM@ is
  71  *              thrown.
  72  */
  73
  74 extern char *xstrdup(const char */*s*/);
  75
  76 /* --- @xrealloc@ --- *
  77  *
  78  * Arguments:   @void *p@ = pointer to a block of memory
  79  *              @size_t sz@ = new size desired for the block
  80  *
  81  * Returns:     Pointer to the resized memory block (which is almost
  82  *              certainly not in the same place any more).
  83  *
  84  * Use:         Resizes a memory block.  If there's not enough memory, the
  85  *              exception @EXC_NOMEM@ is thrown.
  86  */
  87
  88 extern void *xrealloc(void */*p*/, size_t /*sz*/);
  89
  90 /*----- That's all, folks -------------------------------------------------*/
  91
  92 #ifdef __cplusplus
  93   }
  94 #endif
  95
  96 #endif