What is the performance implication of converting to bool in C++?

Question

[This question is related to but not the same as this one.]

My compiler warns about implicitly converting or casting certain types to bool whereas explicit

Answer 1

Unless you're writing code for a really critical inner loop (simulator core, ray-tracer, etc.) there is no point in worrying about any performance hits in this case. There are other more important things to worry about in your code (and other more significant performance traps lurking, I'm sure).