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  1. #include <stdio.h>
  2.  
  3. void foo(int *p); // <<<<<<<<<< Declare your function first!
  4.  
  5. int main() {
  6.  
  7.     int i = 97, *p = &i;
  8.  
  9.     foo(&i); printf("%d ", *p);
  10. }
  11.  
  12. void foo(int *p) {
  13.     int j = 2;
  14.  
  15.     p = &j;
  16.     printf("%d ", *p);
  17. }
Success #stdin #stdout 0s 3340KB
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stdin
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Standard input is empty
stdout
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2 97
https://ideone.com/y01z5b
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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