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  1. #include <iostream>
  2. #include <string>
  3. using namespace std;
  4.  
  5. int main() {
  6. 	std::string turnsDefined;
  7. 	std::cin >> turnsDefined;
  8. 	bool hasPassed = false;    
  9. 	while(hasPassed != true){
  10. 	    for(char c : turnsDefined){
  11. 	        if(isdigit(c) != true){
  12. 	            std::cout << "Please only use numbers to describe the amount of turns you'd like to do." << std::endl;
  13. 	            hasPassed = false;
  14. 	            break;
  15. 	            std::cin >> turnsDefined;
  16. 	        }else{
  17. 	            hasPassed = true;
  18. 	        }
  19. 	    }
  20. 	}
  21. 	return 0;
  22. }
Success #stdin #stdout 0s 3428KB
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stdin 
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stdout 
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https://ideone.com/frAjSk
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
secret

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