-_malloc_ _alloc_(1, 2) static inline void *malloc_multiply(size_t a, size_t b) {
- if (_unlikely_(b != 0 && a > ((size_t) -1) / b))
+static inline bool size_multiply_overflow(size_t size, size_t need) {
+ return _unlikely_(need != 0 && size > (SIZE_MAX / need));
+}
+
+_malloc_ _alloc_(1, 2) static inline void *malloc_multiply(size_t size, size_t need) {
+ if (size_multiply_overflow(size, need))