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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	#define TRACE(arg) cout << #arg ":" << (arg) << endl;
  6.  
  7. 	///...a simple macro that can be used like this:
  8.  
  9. 	int a = 5;
  10. 	TRACE(a)
  11. 	a += 7;
  12. 	TRACE(a)
  13. 	TRACE(a+7)
  14. 	TRACE(17*11)
  15. 	return 0;
  16. }
Success #stdin #stdout 0s 16064KB
comments (?)
stdin 
Standard input is empty
stdout 
a:5
a:12
a+7:19
17*11:187
https://ideone.com/rQTGSU
language:
C++ (gcc 8.3)
created:
7 years ago
visibility:
secret

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