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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3. #include <string.h>
  4.  
  5. void trocar(char **a, char **b) {
  6.     char *novo = *a;
  7.     *a = *b;
  8.     *b = novo;
  9. }
  10.  
  11. int main() {
  12.     char *a = malloc(3);
  13.     strcpy(a, "oi");
  14.     char *b = malloc(6);
  15.     strcpy(b, "tchau");
  16.     trocar(&a, &b);
  17.     printf("a: %s, b: %s\n", a, b);
  18. }
  19.  
  20. //https://pt.stackoverflow.com/q/344274/101
Success #stdin #stdout 0s 9424KB
comments (?)
stdin
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Standard input is empty
stdout
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a: tchau, b: oi
https://ideone.com/oGXW0q
language:
C99 (gcc 8.3)
created:
6 years ago
visibility:
public

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