aligned_alloc
void * aligned_alloc(size_t, size_t) __malloc_like __alloc_align(1)
extern void *aligned_alloc(size_t, size_t);
using std::aligned_alloc;
void *buf = aligned_alloc(test->at_align, test->at_size);
if (aligned_alloc(sizeof (void *), 16) == NULL)
void *buf = aligned_alloc(test->at_align, test->at_size);
void *aligned_alloc(size_t alignment, size_t size) __alloc_align(1);