Re: Constraint error?

[Ted Dennison<dennison@telepath.com>]

In article <3B1CC1FE.304BF00E@earthlink.net>, Marc A. Criley says...
>
>Ted Dennison wrote:
>> 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 

>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.

True. But its quite rare that you might need to change the contents but never
the size. Thus this relaxation is mostly useful for those slightly less rare
instances where you need it to not be constant for technical reasons. (eg: You
need to create an access to it using a non-constant access type. You need to use
it in an "access" parameter. You need to pass it into a routine that doesn't
modify it, but uses "in out" for the parameter anyway.)

I'll admit its a possibility, but not a common enough one to worry a beginner
with.

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