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From: dewar@merv.cs.nyu.edu (Robert Dewar)
Subject: Re: File descriptor interfacing
Date: 1998/05/05
Message-ID: <dewar.894425642@merv>#1/1
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Date: 1998-05-05T00:00:00+00:00
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Richard Beare asks

<<The gnat os_lib package is one option, but that means the library user
would have to start using file descriptors as well. I think it would be
better if the user could pass a "file_type" from which the c file
descriptor could be extracted.
>>

Functions to extract file descriptors from Ada files are standardly 
available in GNAT, as are functions to open files givenm C file descriptors.
How do you find out about all this? You consult the ultra-secret source
of information, namely the GNAT documentation that comes with GNAT :-)
Have a look at the sceion in the manual hidden under the obscure 
title "Interfacing to C Streams"