Character Handling

[Robert Stephen Breen <emages@cantech.net.au>]

Hi everyone,
I am currently working on an assigment at uni and I have to convert a
String input to upper case. I have discovered that package
Characters.Handling will do the trick, however mebe its because I am
Irish, but I can not make heads or tails of how you actually use it in
your code!

I have put

With Text_io,Ada.Characters.Handling;
Use Text_io;

and in one of my procedures I have tried to convert an input.

Ada.Characters.Handling.To_upper(Clients_Name(Name_Last)) etc

all I get is a message stating Ivalid parameter call ? How

could someone please explain!!!!!!!!!!!!!!!!!

Thanks
Rob