fork(1) download
copy 
  1. #include <stdio.h>
  2. #include <stdlib.h>
  3. #include <time.h>
  4.  
  5. struct AnyType {
  6. 	int type;
  7. 	union {
  8. 		int i;    // type 0
  9. 		double d; // type 1
  10. 		char c;   // type 2
  11. 	} data;
  12. };
  13.  
  14. void printany(struct AnyType *p) {
  15. 	switch (p->type) {
  16. 		default: printf(" (--)"); break;
  17. 		case 0: printf(" %d", p->data.i); break;
  18. 		case 1: printf(" %f", p->data.d); break;
  19. 		case 2: printf(" %c", p->data.c); break;
  20. 	}
  21. }
  22.  
  23. int main(void) {
  24. 	struct AnyType array[5] = {0};
  25.     array[0].type = 0; array[0].data.i = 3;
  26.     array[1].type = 1; array[1].data.d = 2.5;
  27.     array[2].type = 2; array[2].data.c = 'H';
  28.     array[3].type = 0; array[3].data.i = 421;
  29.     array[4].type = 2; array[4].data.c = 'a';
  30.  
  31.     srand(time(0));
  32.  
  33.     printf("random values:");
  34.     for (int k = 0; k < 20; k++) {
  35.     	int index = rand() % 5; // ignore bias
  36.     	printany(&array[index]);
  37.     }
  38.     printf("\n");
  39. }
Success #stdin #stdout 0s 9424KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
random values: H 421 H 3 3 421 421 H 3 3 421 H H 421 H 2.500000 2.500000 2.500000 3 H
https://ideone.com/HPHe1T
language:
C (clang 8.0)
created:
7 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!