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From: Neil Booth <neil@daikokuya.demon.co.uk> To: nobody@gcc.gnu.org Cc: gcc-prs@gcc.gnu.org Subject: Re: preprocessor/2948 Date: Mon, 28 May 2001 23:46:00 -0000 [thread overview] Message-ID: <20010529064601.12547.qmail@sourceware.cygnus.com> (raw) The following reply was made to PR preprocessor/2948; it has been noted by GNATS. From: Neil Booth <neil@daikokuya.demon.co.uk> To: Sean McNeil <sean@mcneil.com> Cc: nobody@gcc.gnu.org, gcc-gnats@gcc.gnu.org Subject: Re: preprocessor/2948 Date: Tue, 29 May 2001 07:39:03 +0100 Sean McNeil wrote:- > This has puzzled me for a while and I've tried several additional > things as we've been discussing this. I noticed that the cc1plus > program installs handlers for various pragmas and discovered a > #pragma implementation in PlotFile.cpp. When I remove this pragma, > compilation is as I expected. Great, thanks for persisting. > HOWEVER.... there is no template code that exists within the ttt.ii > file (after preprocessor) and adding a #pragma implementation to > ttt.cc (copy of ttt.ii) doesn't reproduce the problem either. So I > am still at a loss as to why Hmmm. This doesn't sound good. Are you saying that the #pragma does not exist in the -E preprocessed output? If so, that's a bug. Most pragmas are not handled or understood by CPP, so it must pass them through in the preprocessed output unchanged. > 1) there is a #pragma implementation in this file (Something I do > not expect anyone on > the gcc team to answer :). I have no idea. I'm not really sure what the pragma does, either, though I know it's to do with template instantiation. > 2) why code is generated for the pragma even though > -fexternal-templates was not defined. Again, this would require me to understand exactly what it does. > I suppose what it boils down to is it's not a cpp problem, but a > cc1plus problem. Should this be reassigned? Probably, provided that CPP is passing through the pragma. I'll do that when we get just a little closer. Does this code work, both ways, with 2.95.2 or 2.95.3? If so, it's a regression, and I'll mark it high priority and it should get done for 3.0. Neil.
next reply other threads:[~2001-05-28 23:46 UTC|newest] Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top 2001-05-28 23:46 Neil Booth [this message] -- strict thread matches above, loose matches on Subject: below -- 2001-05-29 18:26 preprocessor/2948 Sean McNeil 2001-05-29 18:06 preprocessor/2948 Sean McNeil 2001-05-29 10:26 preprocessor/2948 Neil Booth 2001-05-29 9:46 preprocessor/2948 Sean McNeil 2001-05-28 18:56 preprocessor/2948 Sean McNeil 2001-05-28 15:26 preprocessor/2948 Neil Booth 2001-05-27 10:36 preprocessor/2948 Sean McNeil 2001-05-27 0:46 preprocessor/2948 Neil Booth 2001-05-26 8:46 preprocessor/2948 Sean McNeil 2001-05-26 1:16 preprocessor/2948 neil
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