misc/xmalloc.c

   1 /*
   2    xmalloc - a safe malloc
   3
   4    Use this function instead of malloc whenever you don't intend to check
   5    the return value yourself, for instance because you don't have a good
   6    way to handle a zero return value.
   7
   8    Typically, Wine's own memory requests should be handled by this function,
   9    while the clients should use malloc directly (and Wine should return an
  10    error to the client if allocation fails).
  11
  12    Copyright 1995 by Morten Welinder.
  13
  14 */
  15
  16 #include <stdio.h>
  17 #include <string.h>
  18 #include "xmalloc.h"
  19
  20 void *
  21 xmalloc (size_t size)
  22 {
  23     void *res;
  24
  25     res = malloc (size ? size : 1);
  26     if (res == NULL)
  27     {
  28         fprintf (stderr, "Virtual memory exhausted.\n");
  29         exit (1);
  30     }
  31     return res;
  32 }
  33
  34
  35 void *
  36 xrealloc (void *ptr, size_t size)
  37 {
  38     void *res = realloc (ptr, size);
  39     if (res == NULL)
  40     {
  41         fprintf (stderr, "Virtual memory exhausted.\n");
  42         exit (1);
  43     }
  44     return res;
  45 }
  46
  47
  48 char *xstrdup( const char *str )
  49 {
  50     char *res = strdup( str );
  51     if (!res)
  52     {
  53         fprintf (stderr, "Virtual memory exhausted.\n");
  54         exit (1);
  55     }
  56     return res;
  57 }