Function aligned_usize_get

BeefRT/JEMalloc/src/jemalloc.c:2294–2319

* ind parameter is optional and is only checked and filled if alignment == 0; * return true if result is out of range. */

 * return true if result is out of range.
 */
JEMALLOC_ALWAYS_INLINE bool
aligned_usize_get(size_t size, size_t alignment, size_t *usize, szind_t *ind,
    bool bump_empty_aligned_alloc) {
	assert(usize != NULL);
	if (alignment == 0) {
		if (ind != NULL) {
			*ind = sz_size2index(size);
			if (unlikely(*ind >= SC_NSIZES)) {
				return true;
			}
			*usize = sz_index2size(*ind);
			assert(*usize > 0 && *usize <= SC_LARGE_MAXCLASS);
			return false;
		}
		*usize = sz_s2u(size);
	} else {
		if (bump_empty_aligned_alloc && unlikely(size == 0)) {
			size = 1;
		}
		*usize = sz_sa2u(size, alignment);
	}
	if (unlikely(*usize == 0 || *usize > SC_LARGE_MAXCLASS)) {
		return true;
	}
	return false;
}

JEMALLOC_ALWAYS_INLINE bool
zero_get(bool guarantee, bool slow) {