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(main): Run tests for different alignments.

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This commit is contained in:
Ulrich Drepper 2000-10-24 08:30:36 +00:00
parent f3e7f6080f
commit a602757647
1 changed files with 26 additions and 16 deletions
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42
malloc/tst-obstack.c
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@ -28,27 +28,37 @@ verbose_free (void *buf)
int int
main (void) main (void)
{ {
struct obstack obs;
int i;
int result = 0; int result = 0;
int align = 2;
obstack_init (&obs); while (align <= 64)
obstack_alignment_mask (&obs) = ALIGN_MASK;
/* finish an empty object to take alignment into account */
obstack_finish (&obs);
/* let's allocate some objects and print their addresses */
for (i = 15; i > 0; --i)
{ {
void *obj = obstack_alloc (&obs, OBJECT_SIZE); struct obstack obs;
int i;
int align_mask = align - 1;
printf ("obstack_alloc (%u) => %p \t%s\n", OBJECT_SIZE, obj, printf ("\n Alignment mask: %d\n", align_mask);
((uintptr_t) obj & ALIGN_MASK) ? "(not aligned)" : "");
result |= ((uintptr_t) obj & ALIGN_MASK) != 0;
}
/* clean up */ obstack_init (&obs);
obstack_free (&obs, 0); obstack_alignment_mask (&obs) = align_mask;
/* finish an empty object to take alignment into account */
obstack_finish (&obs);
/* let's allocate some objects and print their addresses */
for (i = 15; i > 0; --i)
{
void *obj = obstack_alloc (&obs, OBJECT_SIZE);
printf ("obstack_alloc (%u) => %p \t%s\n", OBJECT_SIZE, obj,
((uintptr_t) obj & align_mask) ? "(not aligned)" : "");
result |= ((uintptr_t) obj & align_mask) != 0;
}
/* clean up */
obstack_free (&obs, 0);
align <<= 1;
}
return result; return result;
} }