Help! I'm still learning

Alright, so the assignment for my entry level c++ class is to write a function isVowel in a program that can identify whether a letter entered by a user is a vowel or not. Here is what I have conjured up however know from looking at it I am very wrong in my approach, can somebody out there send me in the right direction, I cannot figure it out from my text and tutorials. Thanks for your input!

Code:

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#include <iostream>
using namespace std;

char isVowel(char ch);

int main()
{
        char ch;

        cout << "Please enter a letter from the alphabet: ";
        cin >> ch;
        cout<<"the letter you have entered is: isVowel(ch)";
       
        return 0;
}
char isVowel(char x)
{
        if (char ch = 'a')
                cout << "A Vowel" <<endl;
        else
                cout << "Not a vowel" <<endl;
        return 1;   
}

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See my post to this in GD. Ignore a and b, though, and try to avoid cross posting.

One other thing, make sure that your call to isVowel is not enclosed in quotes.

Cheers

> cout<<"the letter you have entered is: isVowel(ch)";
Perhaps
cout<<"the letter you have entered is: " << isVowel(ch);

Pseudo boolean is_val() function:

Code:

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bool class::is_val(possibly pass in your string here)
{
    1) toupper(string)    //from the <cctype> library

    2) create a loop...  perhaps a 'while' loop or a 'for' loop with strnglen( ) as a parameter

    3) make a character-by-character == comparison       

    4) return true when  string[i] == ('A' || 'E' || 'I' || 'O' || 'U')

    5) else return false
}

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Hope this helps ;)

And just so everything in that thread is in this thread...

Code:

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if (char ch = 'a')

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should be

Code:

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if (char ch == 'a')

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