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  1. #include <stdio.h> // a comment
  2.  
  3. #ifndef X /* another comment */
  4.   #error X not defined!
  5. #endif
  6.  
  7. int main(void) {
  8. 	// your code goes here
  9. 	return 0;
  10. }
  11.  
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin
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Standard input is empty
compilation info 
prog.c:4:4: error: #error X not defined!
   #error X not defined!
    ^~~~~
stdout
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Standard output is empty
https://ideone.com/7L9sbA
language:
C (gcc 8.3)
created:
55 days ago
visibility:
secret

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