On Friday, May 17, 2013 16:40:23 Temtaime wrote: > Yes, i want to see 'undeclared variable' error, but the compiler > omits function declaration instead. > > And why i shouldn't use __? I think it's ordinary identifier.
Identifiers begining with two underscores are reserved by the compiler, which is why identifiers such as __FILE__, __LINE__, __traits, and __gshared all begin with two underscores. Identifiers that the compiler generates are going to start with two underscores, and you could end up with bugs in your program if you happened to declare an identifier with a name that matched a compiler generated one. I believe that that's the case with most C-based languages. - Jonathan M Davis
