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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. #define trace(...) #__VA_ARGS__
  5.  
  6. int main() {
  7.  
  8. 	int a = 1, b = 2, c = 3;
  9. 	string z;
  10. 	z = trace(a);
  11. 	cout << z << endl;
  12.  
  13. 	z = trace(a, b);
  14. 	cout << z << endl;
  15.  
  16. 	z = trace(a, b, c);
  17. 	cout << z << endl;
  18.  
  19. 	return 0;
  20. }
Success #stdin #stdout 0s 4492KB
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stdin
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Standard input is empty
stdout
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a
a, b
a, b, c
https://ideone.com/xozuuK
language:
C++ (gcc 8.3)
created:
5 years ago
visibility:
public

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