Help! I'm still learning

This is a discussion on Help! I'm still learning within the C++ Programming forums, part of the General Programming Boards category; Alright, so the assignment for my entry level c++ class is to write a function isVowel in a program that ...

  1. #1
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    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:
    #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;    
    }

  2. #2
    Toaster Zach L.'s Avatar
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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
    The word rap as it applies to music is the result of a peculiar phonological rule which has stripped the word of its initial voiceless velar stop.

  3. #3
    and the hat of wrongness Salem's Avatar
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    > cout<<"the letter you have entered is: isVowel(ch)";
    Perhaps
    cout<<"the letter you have entered is: " << isVowel(ch);
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
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  4. #4
    VA National Guard The Brain's Avatar
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    Pseudo boolean is_val() function:

    Code:
    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
    }

    Hope this helps
    Last edited by The Brain; 10-08-2004 at 03:13 PM.
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  5. #5
    Registered User jlou's Avatar
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    And just so everything in that thread is in this thread...

    Code:
    if (char ch = 'a')
    should be
    Code:
    if (char ch == 'a')

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