1#include <stdarg.h>
2
3typedef struct{double x,y;}point;
4point pts[]={{1.0,2.0},{3.0,4.0},{5.0,6.0},{7.0,8.0}};
5static int va1(int nargs,...)
6{
7  va_list args;
8  int i;
9  point pi;
10  va_start(args,nargs);
11  for(i=0;i<nargs;i++){
12    pi=va_arg(args,point);
13    if(pts[i].x!=pi.x||pts[i].y!=pi.y)abort();
14  }
15  va_end(args);
16}
17
18typedef struct{int x,y;}ipoint;
19ipoint ipts[]={{1,2},{3,4},{5,6},{7,8}};
20static int va2(int nargs,...)
21{
22  va_list args;
23  int i;
24  ipoint pi;
25  va_start(args,nargs);
26  for(i=0;i<nargs;i++){
27    pi=va_arg(args,ipoint);
28    if(ipts[i].x!=pi.x||ipts[i].y!=pi.y)abort();
29  }
30  va_end(args);
31}
32
33main()
34{
35va1(4,pts[0],pts[1],pts[2],pts[3]);
36va2(4,ipts[0],ipts[1],ipts[2],ipts[3]);
37exit(0);
38}
39