| 623 | #define st_add_overflow __builtin_add_overflow |
| 624 | #else |
| 625 | static inline bool st_add_overflow(size_t a, size_t b, size_t *out) |
| 626 | { |
| 627 | if (unsigned_add_overflows(a, b)) |
| 628 | return true; |
| 629 | *out = a + b; |
| 630 | return false; |
| 631 | } |
| 632 | #endif |
| 633 | |
| 634 | static inline size_t st_add(size_t a, size_t b) |