Steven Watanabe:
AMDG
Roland Bock wrote:
Stewart, Robert wrote:
C4800 seems ridiculous. Writing code using int as a Boolean is common to C code. Why would VC 9 inflict useless noise when compiling such code? Besides, if the variable is int, and it is needed in a Boolean context, what else would the developer do? I've seen use of the conditional operator to avoid that warning. I suspect that produces worse code than what is done when "forcing value to bool 'true' or 'false'."
I agree. Still, I hope that static_cast is allowed to remove C4800
Nope.
.\scratch.cpp(20) : warning C4800: 'int' : forcing value to bool 'true' or 'false' (performance warning)
C4800 is avoided with expr? true: false. In this case, sizeof( expr? 0: 0 ) will also work, as we don't care about the value.