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  1. #include <iostream>
  2. #include<limits>
  3. void language();
  4.  
  5. int main() {
  6.     language();
  7. }
  8.  
  9. void language() {
  10.     int choice;
  11.  
  12.     // Ask user for something and input        
  13.     std::cout << "Press 1 to exit the program\n\n";
  14.    // std::cin >> choice;
  15.  while(true)
  16.     {
  17.         if (std::cin >> choice)  
  18.           break ;
  19.         else {
  20.             std::cout<<"Not an integer !"<<std::endl;
  21.             std::cin.clear() ;
  22.             std::cin.ignore(std::numeric_limits<std::streamsize> :: max(), '\n') ;
  23.         }
  24.      }
  25.     switch(choice) {
  26.         case 1:
  27.             std::cout << "\n\nEnding program...";
  28.             return ;
  29.             break;
  30.         default:
  31.             std::cout << "\n\nPlease type the specific number.\n\n";
  32.             language();
  33.             break;
  34.         }
  35.  
  36.     }
Success #stdin #stdout 0s 3344KB
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stdin
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1
stdout
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Press 1 to exit the program



Ending program...
https://ideone.com/BqYKbh
language:
C++ (gcc 8.3)
created:
12 years ago
visibility:
public

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