C & Perl for loops

[Busse, Rich]

In C, I can do something like this:

        char ch ;
        char sz [] = "?:\\dir\\myfile.ini" ;
        for ( ch = 'c' ; ch <= 'z' ; ch++ )
        {
                sz[0] = ch ;
                . . . 

to spin thru all the possible drives on a Windows NT box. But Perl complains
about trying to compare/increment a non-numeric. Any way around this?

Also, to look at each character in a string, I can do:

        int i ;
        char sz [] = "A string" ;
        for ( i = 0 ; i < strlen (sz) ; i++ )
        {
                ch = sz [i] ;
                . . .

How do I access each character in a string with Perl? TIA...