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 vote188 views1 answer
Semi colon in argument list c++
C++
1 vote239 views1 answer
Calculate time difference cpp
C++
0 vote178 views1 answer
Cpp array init value
C++
0 vote204 views1 answer
Operand-- c++
C++
0 vote166 views3 answers
C++ comment
C++
0 vote190 views1 answer
Passing a 2d array cpp
C++
0 vote189 views1 answer
C++ erase last element of set
C++
0 vote183 views1 answer
C++ clip values
C++
0 vote175 views1 answer
In every C++ program:
C++
0 vote185 views1 answer
Unique_ptr syntax
C++