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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4.     int a, b, *p, *q;
  5.  
  6.     a = 3; b = 5;
  7.     p = &a; q = &b;
  8.     printf("a:%d b:%d *p:%d *q:%d\n", a, b, *p, *q);
  9.     a++;
  10.     printf("a:%d b:%d *p:%d *q:%d\n", a, b, *p, *q);
  11.     *p += 2;
  12.     printf("a:%d b:%d *p:%d *q:%d\n", a, b, *p, *q);
  13.     *q += 3;
  14.     printf("a:%d b:%d *p:%d *q:%d\n", a, b, *p, *q);
  15.     b += 2;
  16.     printf("a:%d b:%d *p:%d *q:%d\n", a, b, *p, *q);
  17.     p = q;
  18.     printf("a:%d b:%d *p:%d *q:%d\n", a, b, *p, *q);
  19.     b = 0;
  20.     printf("a:%d b:%d *p:%d *q:%d\n", a, b, *p, *q);
  21.     return 0;
  22. }
Success #stdin #stdout 0.01s 5284KB
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stdin
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Standard input is empty
stdout
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a:3 b:5 *p:3 *q:5
a:4 b:5 *p:4 *q:5
a:6 b:5 *p:6 *q:5
a:6 b:8 *p:6 *q:8
a:6 b:10 *p:6 *q:10
a:6 b:10 *p:10 *q:10
a:6 b:0 *p:0 *q:0
https://ideone.com/Ku6wCM
language:
C (gcc 8.3)
created:
119 days ago
visibility:
public

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