Re: preprocessor/2948

[Sean McNeil <sean@mcneil.com>]

The following reply was made to PR c++/2948; it has been noted by GNATS.

From: Sean McNeil <sean@mcneil.com>
To: Neil Booth <neil@daikokuya.demon.co.uk>
Cc: nobody@gcc.gnu.org, gcc-gnats@gcc.gnu.org
Subject: Re: preprocessor/2948
Date: Tue, 29 May 2001 18:22:00 -0700

 I found the following error when I compile via. the 2 stage mechanism with gcc
 2.95.3:
 
 arm-wrs-vxworks-g++ -v -mcpu=arm8 -mapcs-32 -mlittle-endian -ansi -nostdinc
 -fno-implicit-templates -DVXW_EXPLICIT_TEMPLATES -O2 -mno-sched-prolog
 -I/usr/arm-wrs-vxworks/target/h -DCPU=ARMARCH4 -DARMEL -fno-exceptions -o
 /tmp/ttt.o -c /tmp/ttt.cc
 
 PlotFile.cpp:67: `#pragma implementation' can only appear at top-level
 
 Sean
 
 Neil Booth wrote:
 
 > Sean McNeil wrote:-
 >
 > >  The pragmas are indeed getting passed through by the cpp0.  So why would
 > >  they compile differently in the two cases?  This is very strange.  It is
 > >  related to that #pragma, though.  Perhaps the cpp is told to parse things
 > >  differently?
 >
 > Are the pragmas merely
 >
 > #pragma implementation
 >
 > or are they
 >
 > #pragma implementation "filename"
 >
 > ?  I think it's an issue with file names not comparing as strings
 > properly because of path information, or something like that.  Does
 > that give you a clue?
 >
 > Is there a
 >
 > #pragma interface
 >
 > somewhere to match the #pragma implementation?
 >
 > Is this a 2.95 regression?  I'm going to re-file this as a C++ bug.
 >
 > Neil.