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  1. #include <iostream>
  2. #include <limits>
  3. using namespace std;
  4.  
  5. int main() {
  6. 	int i = 10;
  7. 	while (!(cin >> i)) {
  8. 		cout << "NaN<int>" << endl;
  9. 		cin.clear();
  10.     	cin.ignore(numeric_limits<streamsize>::max(), '\n');
  11. 	}
  12. 	cout << "Number: " << i;
  13. 	return 0;
  14. }
Success #stdin #stdout 0s 3344KB
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stdin
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a
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5
stdout
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NaN<int>
NaN<int>
Number: 5
https://ideone.com/me97u8
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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