From: porton@ex-code.com (Victor Porton)
Subject: Eliminating copying in Gnat
Date: Mon, 20 Jan 2003 09:12:55 +0500
Date: 2003-01-20T04:13:43+00:00 [thread overview]
Message-ID: <3e2b7777$0$33930$bed64819@news.gradwell.net> (raw)
Is it possible to cause Gnat to not do unnecessary copying
when calling this fynction?
function Pass(X: T) return T is
pragma Inline(Pass);
begin
return X;
end;
If T is a controlled type, it calls Adjust 3(!) times even
if I compile with optimization ("-O3 -gnatN").
I even don't know how to check (well, without reading assembler
output) whether copying would be done in the case of
non-controlled T.
It is in Gnat-3.14p. May be it was fixed in Gnat-3.2/3.15p?
next reply other threads:[~2003-01-20 4:12 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-01-20 4:12 Victor Porton [this message]
2003-01-20 14:57 ` Eliminating copying in Gnat Damien CARBONNE
2003-01-20 15:03 ` Lutz Donnerhacke
2003-01-20 18:34 ` Martin Krischik
2003-01-20 15:08 ` Stephen Leake
2003-01-20 21:27 ` Victor Porton
2003-01-21 12:35 ` Georg Bauhaus
2003-01-21 19:21 ` Robert A Duff
2003-01-21 14:52 ` Stephen Leake
2003-01-21 18:49 ` Martin Krischik
2003-01-21 13:10 ` Victor Porton
2003-01-21 18:40 ` Victor Porton
2003-01-21 20:54 ` Victor Porton
-- strict thread matches above, loose matches on Subject: below --
2003-01-21 13:31 Grein, Christoph
2003-01-21 18:54 ` Randy Brukardt
2003-01-21 19:02 ` Georg Bauhaus
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