2 #define va_start(v,l) __builtin_va_start(v,l)
3 #define va_end(v) __builtin_va_end(v)
4 #define va_arg(v,l) __builtin_va_arg(v,l)
5 #define va_copy(d,s) __builtin_va_copy(d,s)
10 char * foo(char *fmt, ...) {
15 s = va_arg(ap, char *);
22 printf("<%s>\n", foo("bla", "blup"));