C++ 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";
}

Similar codes

0 vote151 views1 answer
Find maximum sum of circular subarray
C++
3 votes127 views4 answers
String c++
C++
0 vote116 views1 answer
Left margin c++
C++
-1 vote127 views1 answer
Pointer to constant
C++
-1 vote127 views1 answer
Un aliment traduction espagnol
C++
0 vote128 views1 answer
C++ typeid get type name
C++
0 vote126 views1 answer
C++ unittest in ros
C++
0 vote125 views2 answers
Faxc
C++
1 vote127 views1 answer
How to easily trim a str in c++
C++
22 votes123 views3 answers
Get line C++
C++