Loop until integer input is in required range fails to work with non-digit character inputs

Question

I\'m having a problem with what should be incredibly simple code. I want to take in an integer between 1 and 3 with error checking. It works fine for checking for numbers

Answer 1

#include 
#include 

using namespace std;

int validatedInput(int min = 1, int max = 3)
{
    while(true)
    {
        cout << "Enter a number: ";
        string s;
        getline(cin,s);
        char *endp = 0;
        int ret = strtol(s.c_str(),&endp,10);
        if(endp!=s.c_str() && !*endp && ret >= min && ret <= max)
            return ret;
        cout << "Invalid input. Allowed range: " << min << "-" << max <