glibc/malloc/tst-trim1.c

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#include <malloc.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define N 10000
static void *arr[N];
static int
do_test (void)
{
for (int i = 0; i < N; ++i)
{
size_t size = random () % 16384;
if ((arr[i] = malloc (size)) == NULL)
{
nomem:
puts ("not enough memory");
return 0;
}
memset (arr[i], size, size);
}
void *p = malloc (256);
if (p == NULL)
goto nomem;
memset (p, 1, 256);
puts ("==================================================================");
for (int i = 0; i < N; ++i)
if (i % 13 != 0)
free (arr[i]);
puts ("==================================================================");
malloc_trim (0);
puts ("==================================================================");
p = malloc (30000);
if (p == NULL)
goto nomem;
memset (p, 2, 30000);
malloc_trim (0);
return 0;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"