memcheck/tests/linux/enomem.c

   1
   2 /* Test malloc, calloc, realloc and memalign set errno to ENOMEM */
   3
   4 #include <errno.h>
   5 #include <limits.h>
   6 #include <malloc.h>
   7 #include <stdio.h>
   8 #include <stdlib.h>
   9
  10 int main ( void )
  11 {
  12   char* small = malloc (16);
  13   char* p;
  14
  15   errno = 0;
  16   p = malloc(SSIZE_MAX);
  17   if (!p && errno == ENOMEM) puts("malloc: Cannot allocate memory");
  18
  19   errno = 0;
  20   p = calloc(1, SSIZE_MAX);
  21   if (!p && errno == ENOMEM) puts("calloc: Cannot allocate memory");
  22
  23   errno = 0;
  24   p = realloc(small, SSIZE_MAX);
  25   if (!p && errno == ENOMEM) puts("realloc: Cannot allocate memory");
  26
  27   errno = 0;
  28   p = memalign(64, SSIZE_MAX);
  29   if (!p && errno == ENOMEM) puts("memalign: Cannot allocate memory");
  30
  31   free(small);
  32
  33   return 0;
  34 }