#include <stdio.h>
#include <cs50.h>
#include <math.h>
#include <ctype.h>

/*
In a file called letterlocator.c write a program that
prompts the user for an alphabetic character, and then
prints the position of that letter in the alphabet, starting
with A at position 0. Your program should work for both capital
and lowercase letters, but should reject any input that is not
alphabetical, like '3' or '$'.

GetChar
isalpha
*/
char alpha;
int alphaPos(int shiftedalpha);

int main(void)
{

    int answer = alphaPos(alpha);
    printf("The letter %c equals %i\n\n",alpha,answer);
}

int alphaPos(int shiftedalpha)
{
    do
    {
        printf("Enter an alphabet character please:\n");
        alpha = GetChar();


    } while (!isalpha(alpha));

    alpha = toupper(alpha);

    shiftedalpha = alpha-65;
    return shiftedalpha;
}