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From: joseph_kwan@greenlime.com (Joseph Kwan)
Newsgroups: comp.lang.ada
Subject: Re: How to convert record?
Date: 25 Oct 2001 04:40:10 -0700
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john.mccabe@emrad.com.nospam (John McCabe) wrote in message news:<3bd402f9.8783319@news.demon.co.uk>...
> On 21 Oct 2001 02:56:25 -0700, joseph_kwan@greenlime.com (Joseph Kwan)
> wrote:
> 
> >I want to send a command buffer to serial port using florist's POSIX
> >interface but I have encountered problems in converting record to
> >POSIX.IO.IO_Buffer or Ada.Streams.Stream_Element_Array. How can I
> >overcome this problem?
> 
> Without looking at the Reference Manual, I would initially suggest
> looking at Ada.Unchecked_Conversion to do the job.


I thought that would work too but theoretically,
Ada.Unchecked_Conversion will not work in converting record to
POSIX.IO.IO_Buffer which is a string of characters (See spec in
florist's implementation).

Anyhow I tried to do Unchecked_Conversion and gnat gave me error
message:

"unchecked conversion to unconstrained array not allowed".

What should I do?