1 #include <stdarg.h>
2 
fdouble(double one,...)3 void fdouble (double one, ...)
4 {
5   double value;
6   va_list ap;
7 
8   va_start (ap, one);
9   value = va_arg (ap, double);
10   va_end (ap);
11 
12   if (one != 1.0 || value != 2.0)
13     abort ();
14 }
15 
main()16 int main ()
17 {
18   fdouble (1.0, 2.0);
19   exit (0);
20 }
21