[Solved] C++ keeps on glitching while using switch statement in while loop

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cin >> switch1 tries to read in an integer. If you type d (which can’t be converted to an int, it doesn’t “eat” the bad input so you must clear it manually.

Try adding this to your error case:

cin.clear();
cin.ignore(INT_MAX, '\n');

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solved C++ keeps on glitching while using switch statement in while loop