/*
 * I need a way for the program to read input separated by space, where a space will
 * indicate the end of a value. For example: 23 3 is the input twenty three and three,
 * not: two, three, three.
 *
 * When an integer operand is encountered, it will be pushed onto the stack. An operator
 * will cause two items of the stack of be popped then a push of the answer.
    argc = SIZE OF THE ARRAY
    argv = Array of strings that represents the command line entered.
 */

int main (int argc, char *argv)

{
    int i;
    for (i = 1; i < argc; i++)
    {
        if (x argv = int)
        {
            push(int x)       

                //http://www.cppreference.com/stdstring/isdigit.html
                //http://www.cppreference.com/stdstring/atoi.html
    }
}

The hyperlinks are a link to two methods from the library that I need to use: isdigit() and atoi(). Because the input is being entered from the command prompt it's my understanding that a character and an integer cannot be differentiated simply by their bit pattern. What I need to do with the input is take the "string", convert it to an integer and then check to see if it is an integer or not.

Now, in Java I'd do something like x.isdigit().atoi() but... gah! There's a lot of true/false requirements in there and I don't think I actually fully understand exactly what I'm trying to do.