cin.fail

[technologist]

I am trying to get the input "index" to be analyzed for "integer" or "non-int". This does not seem to be working for me.It seems straightforward: what is(are) my errors.Compiles fine. But every number I input returns "Integer".

#include<iostream>
#include<string>

int main()
{
    int index;
        std::cout << "Enter an index: ";
        std::cin >> index;

        //handle case where user entered a non-integer
        if (std::cin.fail())
        {
            std::cout<<"Non-integer";

        }

        else
        {
        	std::cout<<"Integer";
        }


    return 0;
}

[jlb]

But every number I input returns "Integer".

What were you expecting? If the first character is a digit or a sign character (+ -) then the entry is a valid integer, even if there is some other non digit character after the first digit.

[technologist]

got it, thx
was just using numbers