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  1. #include <stdio.h>
  2.  
  3. #define MACRO1
  4. #define MACRO2
  5.  
  6. int main()
  7. {
  8.     #if defined(MACRO1) || defined(MACRO2)
  9.     printf("Check\n");
  10.     #endif
  11.  
  12.     #if defined(INVALID_MACRO) || defined(MACRO2)
  13.     printf("Check\n");
  14.     #endif
  15.  
  16.     #if defined(MACRO1) || defined(INVALID_MACRO)
  17.     printf("Check\n");
  18.     #endif
  19.  
  20.     #if defined(INVALID_MACRO1) || defined(INVALID_MACRO2)
  21.     printf("If this gets printed... we're in trouble\n");
  22.     #endif
  23.  
  24.     return 0;
  25. }
Success #stdin #stdout 0.01s 1676KB
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https://ideone.com/Swdum3
language:
C (gcc 8.3)
created:
11 years ago
visibility:
public

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