After:

    // Print character type
    switch( tolower( charVar ) )
    {
       case 'a': 
       case 'e': 
       case 'i': 
       case 'o': 
       case 'u': cout << charVar << " is a vowel" << endl;
                 break;
       default:  cout << charVar << " is a consonant" << endl;
    }