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  1. #include <stdio.h>
  2.  
  3. #define MAGIC_MACRO(f) \
  4. 	void f##_inner(void); \
  5. 	void f(void) { \
  6. 	    printf("entry\n"); \
  7. 	    f##_inner(); \
  8. 	    printf("exit\n"); \
  9. 	} \
  10. 	void f##_inner()
  11.  
  12. MAGIC_MACRO(foo)
  13. {
  14. 	printf("foo\n");
  15. }
  16.  
  17. MAGIC_MACRO(bar)
  18. {
  19. 	printf("bar\n");
  20. }
  21.  
  22. int main(void) {
  23. 	foo();
  24. 	bar();
  25. 	return 0;
  26. }
  27.  
Success #stdin #stdout 0s 2248KB
comments (?)
stdin
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Standard input is empty
stdout
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entry
foo
exit
entry
bar
exit
https://ideone.com/eqIzuZ
language:
C (gcc 8.3)
created:
12 years ago
visibility:
secret

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