Simple C++ error checking question

I bet the answer to this is simple and I'm simply too stupid to figure it out.

I have a program that is asking for a number in the range of 1-8. I do not want to allow the user to enter strings. What is a short and clean way to only allow ints to be entered?

if(number == int) then continue;
else ERROR, REPEAT;

>>2
That code sucks, though. You could have easily included at least the words `convergence' and `assimilation' in it.

Turing

Bringing /prog/ back to its people
All work and no play makes Jack a dull boy
All work and no play makes Jack a dull boy
All work and no play makes Jack a dull boy
All work and no play makes Jack a dull boy
All work and no play makes Jack a dull boy
All work and no play makes Jack a dull boy
All work and no play makes Jack a dull boy
All work and no play makes Jack a dull boy
All work and no play makes Jack a dull boy
All work and no play makes Jack a dull boy
All work and no play makes Jack a dull boy
All work and no play makes Jack a dull boy
All work and no play makes Jack a dull boy