> a similar section wrt the compiler he is using, because he's talking about "behavior undefined by C but defined by implementation" That's called implementati

> a similar section wrt the compiler he is using, because he's talking about "behavior undefined by C but defined by implementation" That's called implementation-defined behavior. And there is a section in C that lists all the implementation-defined behavior, and all the compilers are supposed to document what they define the implementation-defined behavior to be (glares at Clang).