Re: String declaration and initialization

[Robert A Duff <bobduff@shell01.TheWorld.com>]

S�bastien <seb.morand@gmail.com> writes:

> But you give me an Idea :
> declare
>     buffer: access String;
>     Free_String is new Unchecked_Deallocation(String, access all String);
> begin
>     case SomeTest is
>         case TEST1 =>
>             buffer := new String("Test1");
>         case TEST2 =>
>             buffer := new String("Test2");
>     end case;
>     MyTreatment1(buffer.all, buffer.all'Size);
>     MyTreatment2(buffer.all, buffer.all'Size);
>     MyTreatment3(buffer.all, buffer.all'Size);
> end;
>
> but it doesn't work of course since I can't create with new an
> unconstrained object.

Sure you can:

    buffer := new String'("Test1");
                        ^
                        | Note tick mark!


<< new String("Test1"); >> does not make sense.  You have to use a
qualified expression (as above) or a constrained subtype,
as in:

    new String(1..10)

You didn't call Free_String, by the way.  Think about whether you want
to call it in case of exception!

- Bob