1 #include <stdarg.h>
2
3 typedef struct{double x,y;}point;
4 point pts[]={{1.0,2.0},{3.0,4.0},{5.0,6.0},{7.0,8.0}};
va1(int nargs,...)5 static 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
18 typedef struct{int x,y;}ipoint;
19 ipoint ipts[]={{1,2},{3,4},{5,6},{7,8}};
va2(int nargs,...)20 static 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
main()33 main()
34 {
35 va1(4,pts[0],pts[1],pts[2],pts[3]);
36 va2(4,ipts[0],ipts[1],ipts[2],ipts[3]);
37 exit(0);
38 }
39