My favourite builtins are the overflow checked integer operations: https://gcc.gnu.org/onlinedocs/gcc/Integer-Overflow-Builtins.html https://gcc.gnu.org/online

My favourite builtins are the overflow checked integer operations: https://gcc.gnu.org/onlinedocs/gcc/Integer-Overflow-Builtins.html https://gcc.gnu.org/onlinedocs/gcc/Integer-Overflow-Builtins...