Answers for "how to check if cin is int"

C++

0

check if cin didn't get int

while (std::cout << "Enter a number" && !(std::cin >> num)) {
    std::cin.clear(); //clear bad input flag
    std::cin.ignore(std::numeric_limits<std::streamsize>::max(), 'n'); //discard input
    std::cout << "Invalid input; please re-enter.n";
}

Posted by: Guest on September-03-2021

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