This approach isn’t good imo. Zig also has a similar approach. It is best to have ergonomic checked version of arithmetic functions and always use them when p

This approach isn’t good imo. Zig also has a similar approach. It is best to have ergonomic checked version of arithmetic functions and always use them when possible, and use the debug only checked versions on other places. Performance of checked arithmetic will basically never matter around things like allocation in my experience