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  1. #include <stdio.h>
  2.  
  3. void swap(float * x, float * y)
  4. {
  5.   float aux;
  6.   aux = *x;
  7.   *x = *y;
  8.   *y = aux;
  9. }
  10.  
  11. int main(void)
  12. {
  13.   double a = 3.5, b = 5.6;
  14.   long long int *lla = &a, *llb = &b;
  15.   printf("%llx %llx\n", *lla, *llb);
  16.   swap(&a, &b);
  17.   printf("%g %g\n", a, b);
  18.   printf("%llx %llx\n", *lla, *llb);
  19.   return 0;
  20. }
Success #stdin #stdout 0s 2112KB
comments ()
stdin
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Standard input is empty
stdout
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400c000000000000 4016666666666666
3.5 5.6
400c000066666666 4016666600000000
https://ideone.com/boN3Df
language:
C (gcc 8.3)
created:
9 years ago
visibility:
public

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