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  1. #include <iostream>
  2. using namespace std;
  3.  
  4.     int main() {        int year;
  5.  
  6.         while (true) {
  7.             cout << "Enter a valid year: ";
  8.             cin >> year;
  9.             if (cin.fail()) {
  10.                 cin.clear(); cin.ignore();
  11.                 cout << "Re-enter a valid value! " << endl;
  12.             } else break;
  13.         }
  14.         return 0;
  15.     }
  16.  
  17.  
Success #stdin #stdout 0s 3472KB
comments (?)
stdin
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xyz1234abc
stdout
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Enter a valid year: Re-enter a valid value! 
Enter a valid year: Re-enter a valid value! 
Enter a valid year: Re-enter a valid value! 
Enter a valid year:
https://ideone.com/6xUCrC
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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