Re: Constraint error?

["Marc A. Criley" <mcqada@earthlink.net>]

Ted Dennison wrote:
> 
> 
> The second way to deal with strings is to delay their declaration until you can
> assign the value directly into them. That way you can leave the bounds off of
> the declaration and let it size itself perfectly to the contents. This is the
> easiest method to deal with, if you can use it. Most of the attributes
> ('whatever) that deal with strings can be used with this method. If you want to
> use this method in your own subprograms, you should endevor to always return
> strings as function return values. Of course this method only works if you don't
> plan on changing the contents. For example (my apologies if my newsreader hoses
> the formatting):
> 
> declare
> Width_Answer : constant String := Answer (1..Answer_Length);
> begin
> -- work with Width_Answer in here.
> ..
> end;

Ada 95 removed the requirement that a String declaration as used in the
above example be declared _constant_.  The string will be properly
sized, but you can now modify it to your heart's content, just can't
change the size.

Marc A. Criley
Senior Staff Engineer
Quadrus Corporation
www.quadruscorp.com