http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50581
--- Comment #4 from Wolfgang at Solfrank dot net 2011-10-01 14:43:32 UTC --- (In reply to comment #3) Thanks for the insight regarding passing arrays by value in C90, I wasn't even aware of that. However: > Passing va_list as a function argument is generally hard, whether or not > variadic, since you don't know whether it will be passed by reference or > by value or what the type of the address of a va_list parameter will be. > Portable code needs to pass a pointer to va_list or a structure containing > va_list or use some other such means of avoiding dependence on whether > va_list is an array. Huh? What about vprintf and friends? They are defined to take a va_list as their last parameter.
