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  1. #include <stdio.h>
  2.  
  3. void dump (void *data, int size)
  4. {
  5. 	int i;
  6. 	for (i=0; i<size; i++)
  7. 		printf(" %02x", *(unsigned char*)(data+i));
  8. 	printf ("\n");
  9. }
  10.  
  11. int main(void) {
  12. 	double d1 = 1. * 0.;
  13. 	double d2 = (-1.) * 0;
  14.  
  15. 	printf("d1: %f\n", d1);
  16. 	printf("d2: %f\n", d2);
  17.  
  18. 	printf("(d1 == d2): %s\n", (d1 == d2)?"true":"false");
  19.  
  20. 	dump (&d1, sizeof (d1));
  21. 	dump (&d2, sizeof (d2));
  22.  
  23. 	return 0;
  24. }
  25.  
Success #stdin #stdout 0s 4392KB
comments (?)
stdin
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Standard input is empty
stdout
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d1: 0.000000
d2: -0.000000
(d1 == d2): true
 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 80
https://ideone.com/JbQMme
language:
C (gcc 8.3)
created:
3 years ago
visibility:
secret

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