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  1. #include <iostream>
  2. #include <limits>
  3. using namespace std;
  4.  
  5. int main() { int nr = 0;
  6.       while (!(std::cin >> nr)) {
  7.         std::cin.clear();
  8.         std::cin.ignore(std::numeric_limits<int>::max(), '\n');
  9.         std::cout << "Input is not number , try one more time: ";
  10.       }
  11.  
  12.       std::cout << "Vector length: " << nr << std::endl;
  13. 	return 0;
  14. }
Success #stdin #stdout 0s 3344KB
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stdout
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Vector length: 6
https://ideone.com/Gxl0Ac
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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