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  1. #include <stdio.h>
  2. #include <string.h>
  3. #include <stdlib.h>
  4. #define FIRST 0x01
  5.  
  6. #define REVERSE 0x02
  7.  
  8. #define LAST 0x04
  9.  
  10. #define TEST1 0x16
  11.  
  12. #define TEST2 0x32
  13.  
  14.  
  15. int main(void) {
  16. 	printf("FIRST: %d\n", FIRST); // 1
  17. 	printf("REVERSE: %d\n", REVERSE); // 2
  18. 	printf("FIRST|REVERSE: %d\n", FIRST | REVERSE); // 3
  19. 	printf("LAST: %d\n", LAST); // 4
  20. 	printf("FIRST | LAST: %d\n", FIRST | LAST); // 5
  21. 	printf("REVERSE | LAST: %d\n", REVERSE | LAST); // 6
  22. 	printf("REVERSE | FIRST | LAST: %d\n", REVERSE | FIRST | LAST); // 7
  23. 	printf("TEST1 | TEST2: %d\n", TEST1 | TEST2);
  24. 	if((FIRST | FIRST) == REVERSE) printf("FIRST | FIRST == REVERSE\n"); // 1 == 2?!
  25. 	else printf("FIRST | FIRST != REVERSE\n");
  26. 	printf("FIRST | FIRST: %d\n", FIRST|FIRST); // FIRST|FIRST evaluates to 1 ???
  27. 	return 0;
  28. }
  29.  
Success #stdin #stdout 0s 2008KB
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stdin
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Standard input is empty
stdout
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FIRST: 1
REVERSE: 2
FIRST|REVERSE: 3
LAST: 4
FIRST | LAST: 5
REVERSE | LAST: 6
REVERSE | FIRST | LAST: 7
TEST1 | TEST2: 54
FIRST | FIRST != REVERSE
FIRST | FIRST: 1
https://ideone.com/EtkF0i
language:
C (gcc 8.3)
created:
9 years ago
visibility:
secret

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