From: dewar@merv.cs.nyu.edu (Robert Dewar)
Subject: Re: Multiple instantiation of Ada.Direct_IO
Date: 1998/02/01
Date: 1998-02-01T00:00:00+00:00 [thread overview]
Message-ID: <dewar.886367773@merv> (raw)
In-Reply-To: 886003669.3982.0.nnrp-02.9e98a25e@news.demon.co.uk
Blake asks
<<I have a bit of a problem. Basically I am using Ada.Direct_IO to read /
write to a file. The problem being I wish to write records of differing
types to the file, without closing the file and re-opening it.
Ada 95 will not even let me open the same file as two different file_type
variables as this creates a Use Exception error.
Can anybody help?
Thanks
Blake
>>
GNAT fully implements file sharing, but there is a penalty involved in
the use of this feature -- you have to read the section of the manual
on file sharing, and I understand that this is too much of a burden for
many people :-)
to be fair, any approach using file sharing is NOT necessarily portable,
which is why GNAT does not allow it by default!
prev parent reply other threads:[~1998-02-01 0:00 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
1998-01-28 0:00 Multiple instantiation of Ada.Direct_IO Blake Weston
1998-01-28 0:00 ` Matthew Heaney
1998-01-29 0:00 ` Nick Roberts
1998-02-01 0:00 ` Robert Dewar [this message]
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