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From: Corey Ashford <yeroca@rocketmail.com>
Subject: Re: Constraint Error. Why?
Date: 1999/01/15
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Date: 1999-01-15T00:00:00+00:00
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Roga Danar wrote:
> 
> Thanks for your reply.  I have fixed the problem by looking at an older example of
> code of I had a similiar problem.
> 
> The exception *is* coming from the "if" statement and not the Createfile call.
> 
> Handle is an access to an access to an integer.
> 
> What (appearently) is happening here is that the pointer is NOT NULL when it is
> check by the "if" statement but pointing to anything which I can validly
> deference.

It could be that "seg faults" are converted to constraint_errors within the Ada
runtime.  It's odd though.  Usually, if that is done at all, they are converted
to storage_errors.


> 
> The problem is easily solved with a call to a function which converts the HANDLE
> to an integer which I can then check against the "Invalid_Handle_Value".
> 

Glad you found a fix.

- Corey