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  1. #include <stdio.h>
  2.  
  3. #define JOIN(a, b) (a ## b)
  4. // WARNING: don't LOOP in the same line
  5. #define LOOP(n) for (unsigned JOIN(HIDDEN, __LINE__) = 0; JOIN(HIDDEN, __LINE__) < n; JOIN(HIDDEN, __LINE__)++)
  6.  
  7. int main(void) {
  8. 	LOOP(4) {
  9. 		printf("foo");
  10. 		LOOP(2) printf(" bar");
  11. 		puts("");
  12. 	}
  13. 	return 0;
  14. }
  15.  
Success #stdin #stdout 0s 9424KB
comments (?)
stdin 
Standard input is empty
stdout 
foo bar bar
foo bar bar
foo bar bar
foo bar bar
https://ideone.com/q48RsZ
LOOP(4)
language:
C (gcc 8.3)
created:
5 years ago
visibility:
secret

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