Boost C++ Libraries: Ticket #234: DevStudio 6.0 SP5 precompiled headers and regex

John Maddock — Fri, 06 Feb 2004 12:01:22 GMT

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I've tried all sorts of things to try and fix this, but I can't see
any solution.  As you rightly say Visual Studio .NET and .NET
2003 don't have this issue (I've checked).  The strange thing
is, the pre-compiled header builds OK, it's only when you
come to use it that the error occurs.  If anyone has any
ideas I'd appreciate it.
John

status changed

John Maddock — Fri, 06 Feb 2004 12:16:01 GMT

status assigned → closed

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Following the instructions in
http://support.microsoft.com/default.aspx?scid=kb;en-
us;195738 I have a workaround: change your project pre-
compiled header settings from "Use precompiled header file"
to "Automatic use of precompiled headers".  I don't know
what effect this has on compile times though - in theory
none if you enter "stdafx.h" as the header name in the box
provided (I've checked this works in your text case).
John.

gconklin — Fri, 06 Feb 2004 14:12:22 GMT

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Thanks for looking into this issue and your super-fast
response. It's funny, that article said for win9x, but I'm on
XP. Anyway, moving it to automatic seems to work for
projects with one file, but when adding another class (.cpp/.h
set) the problem pops up again.  Oh well, maybe time to look
into upgrading the ol' compiler.
Anyway, thanks again, and thanks for all the work you do for
the community.

gconklin — Sun, 08 Feb 2004 02:02:46 GMT

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I looked into this a little more and just messed around and
tried various things. This isn't ideal, but may be of interest
and help to others.
It doesn't really make any sense to me, but here's what I did.
I removed all these lines:
#ifdef BOOST_MSVC
#pragma warning(push)
#pragma warning(disable:4127)
#endif
#ifdef BOOST_MSVC
#pragma warning(pop)
#endif
throughout the file that was giving me problems (which at
some point became perl_matcher_recursive.hpp).
Like I said, it doesn't make much sense, but thought I'd just
make a note of my findings and what worked for me. Since it's
just a pragma that disables warnings, I'm not too worried
about my changes affecting functionality, though I haven't
done extensive testing yet; just a quick run through of some
of my apps that use regex.