How to reset std::cin when using it?

Question

I have some problem with following code. I use it in Xcode (OS X).

[removed my first try of that code]

How to input reset std::cin? I try to input another va

Answer 1

You could use, when the condition, std::cin.fail() happens:

std::cin.clear();
std::cin.ignore();

And then continue with the loop, with a continue; statement. std::cin.clear() clears the error flags, and sets new ones, and std::cin.ignore() effectively ignores them (by extracting and discarding them).

Sources:

1. cin.ignore()
2. cin.clear()