Function purge

deps/jemalloc/test/integration/aligned_alloc.c:10–14

* On systems which can't merge extents, tests that call this function generate * a lot of dirty memory very quickly. Purging between cycles mitigates * potential OOM on e.g. 32-bit Windows. */

 * potential OOM on e.g. 32-bit Windows.
 */
static void
purge(void) {
	assert_d_eq(mallctl("arena.0.purge", NULL, NULL, NULL, 0), 0,
	    "Unexpected mallctl error");
}

TEST_BEGIN(test_alignment_errors) {
	size_t alignment;