GALLEGGIANTI Bruno wrote:- > typedef __builtin_va_list __gnu_va_list; > > My problem is that __builtin_va_list is never declared/defined in the > pre-processed file. I've no warning about that (-Wall option) > > Following this behaviour, I have 3 questions: > > 1) How does gcc compiler resolve this typedef (before link stage) ?
__builtin_va_list is, as described, built-in to the compiler. It is not defined anywhere; it's built-in definition may well be target- specific. You will always have this problem operating on preprocessed source. Other compilers have similar built-in definitions, such as __NAN__. Preprocessed source is compiler-specific. Neil.
