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

2 votes193 views1 answer
Switch case with string c++
C++
0 vote201 views1 answer
Destiny child
C++
0 vote200 views1 answer
Road sign detection and recognition by OpenCV in c
C++
4 votes199 views1 answer
Convert all characters in string to uppercase c++
C++
0 vote241 views1 answer
C++ program to convert fahrenheit to celsius
C++
1 vote188 views1 answer
Make cin cout faster
C++
-1 vote204 views1 answer
Fast way to check if a number is prime C++
C++
0 vote218 views1 answer
"StepFileGen1." cpp.o failed jetson nano
C++
0 vote222 views1 answer
Ue4 c++ string from fvector
C++
0 vote207 views1 answer
Hamming c++
C++