memcheck/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 Memcheck marks any slop as inaccessible, it doesn't round up
  10    // sizes for malloc_usable_size().
  11    int* x = malloc(99);
  12
  13    // XXX: would be better to have a HAVE_MALLOC_USABLE_SIZE variable here
  14    assert(99 == malloc_usable_size(x));
  15    assert( 0 == malloc_usable_size(NULL));
  16    assert( 0 == malloc_usable_size((void*)0xdeadbeef));
  17 #  endif
  18
  19    return 0;
  20 }