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