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  1. #include <iostream>
  2.  
  3. #define TO_STRING_HELPER(x) #x
  4. #define TO_STRING(x) TO_STRING_HELPER(x)
  5. #define CONCAT(x, y) *x##y
  6.  
  7. int main() {
  8. 	char *pcCommPort = "COM";
  9. 	char *num = "5";
  10. 	std::cout << TO_STRING(CONCAT(pcCommPort, num)) << std::endl;
  11. }
Success #stdin #stdout 0s 3456KB
comments ()
stdin 
Standard input is empty
stdout 
*pcCommPortnum
https://ideone.com/ytWkGj
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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