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  1. #include <stdio.h>
  2. void print_vector(int *vector, int lon){
  3.  
  4.     char *str = calloc(5*lon+3, sizeof(char)); 
  5.     // 5 for each character (3 characters per integer + space + comma. 
  6.     // Two brackets and nul-terminator
  7.  
  8.     strcpy(str, "[");
  9.  
  10.     if (lon) {
  11. 	    sprintf(str+1, "%d", vector[0]);
  12. 	    for(int i = 1; i < lon; i++){
  13. 	        sprintf(str + strlen(str), ", %d", vector[i]);
  14. 	    }
  15.     }
  16.  
  17.     strcat(str, "]");
  18.  
  19.     printf("%s\n", str);
  20. }
  21.  
  22. int main(void) {
  23. 	int vector[] = {1, 2, 3};
  24. 	print_vector(vector, 3);
  25. 	int vector2[] = {};
  26. 	print_vector(vector2, 0);
  27. 	return 0;
  28. }
  29.  
Success #stdin #stdout 0s 4324KB
comments (?)
stdin 
Standard input is empty
stdout 
[1, 2, 3]
[]
https://ideone.com/jfiJK0
language:
C (gcc 8.3)
created:
5 years ago
visibility:
public

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