1 /* Test va_arg when the result is ignored and only the pointer increment 2 side effect is used. */ 3 #include <stdarg.h> 4 5 static int foo(int a,...)6foo (int a, ...) 7 { 8 va_list va; 9 int i, res; 10 11 va_start (va, a); 12 13 for (i = 0; i < 4; ++i) 14 (void) va_arg (va, int); 15 16 res = va_arg (va, int); 17 18 va_end (va); 19 20 return res; 21 } 22 23 int main(void)24main (void) 25 { 26 if (foo (5, 4, 3, 2, 1, 0)) 27 abort (); 28 exit (0); 29 } 30