massif/tests/malloc_usable.c

   1 #include <assert.h>
   2 #include "tests/malloc.h"
   3 #include <stdlib.h>
   4 #include <stdio.h>
   5
   6 int main(void)
   7 {
   8 #  if !defined(VGO_darwin) && !defined(VGO_solaris)
   9    // Because our allocations are in multiples of 8 or 16, 99 will round up
  10    // to 104 or 112.
  11    int* x = malloc(99);
  12
  13    // XXX: would be better to have a HAVE_MALLOC_USABLE_SIZE variable here
  14    assert(104 == malloc_usable_size(x) ||
  15           112 == malloc_usable_size(x));
  16    assert(  0 == malloc_usable_size(NULL));
  17    assert(  0 == malloc_usable_size((void*)0xdeadbeef));
  18 #  endif
  19
  20    return 0;
  21 }