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  1. // gcc       -fstrict-aliasing -std=c99   -O2
  2. union
  3. {   
  4.     int i;
  5.     short s;
  6. } u;
  7.  
  8. int     * i = &u.i;
  9. short   * s = &u.s;
  10.  
  11. int main()
  12. {   
  13.     *i  = 2;
  14.     *s  = 100;
  15.  
  16.     printf(" *i = %d\n",  *i); // prints 2
  17.     printf("u.i = %d\n", u.i); // prints 100
  18.  
  19.     return 0;
  20. }
Success #stdin #stdout 0s 2168KB
comments (?)
stdin 
Standard input is empty
stdout 
 *i = 2
u.i = 100
https://ideone.com/Gcv5Xm
language:
C (gcc 8.3)
created:
8 years ago
visibility:
public

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