Ian Lance Taylor-3 wrote: > > yzysea <yangjing47686@xxxxxxx> writes: > >> Recently, I am reading a C parser source code generated by Bison. The >> underlying OS is opensolaris. However, when I use it to parse a simple C >> source file, say,"Hello.c", I get the error message >> "/usr/inclue/sys/va_list.h:parse error before __gnuc_va_list". As I open >> this file, I find the following line "typedef __builtin_va_list >> __gnuc_va_list". Strangely, I couldn't find the definition of >> "__builtin_va_list " even I checked all its including head files and >> recursively theirs. I have been confused about it for long. >> >> Would anyone give me some ideas about it? What is the >> "_builtin_va_list" >> referring to? What can it be used for? > > __builtin_va_list is automatically defined by gcc. This permits gcc > to recognize and optimize uses of va_start and friends. > > Ian > > Thanks for your response. But I am wondering how a customary C parser rather than gcc to identify "__builtin_va_list". Any ideas? -- View this message in context: http://www.nabble.com/where-is-the-definition-of-%22_builtin_va_list%22-tp25985646p25986862.html Sent from the gcc - Help mailing list archive at Nabble.com.
