Is std::min free and does not cost speed?

[AlvaroBegue]

On a related note, detecting overflow from +INF is hard enough but detecting overflow from INT_MAX is even harder. For Apple users who have been bitten by the Undefined Behavior demons, here's a blog post about Apple's newly released Secure Coding Guide.

True. That's why I would have written it like this:

Code: Select all

Value rbeta = std::min(beta, VALUE_INFINITE - 200) + 200;

In case it's not obvious to everyone, this version would work even if VALUE_INFINITE + 200 is beyond the maximum valid Value.