Yeah I wouldn't like this in a code review. Add one more line of code so I don't have to investigate foo(). That's my fundamental gripe with C++ int i = 0; f

Yeah I wouldn't like this in a code review. Add one more line of code so I don't have to investigate foo(). That's my fundamental gripe with C++ int i = 0; function_0(i,...); ... function_9(i,...); which one changes i? It's not obvious in a code review due to default mutable references.