October 2001 - Boost-users - lists.preview.boost.org

boost/thread on Linux
by sebmarc＠yahoo.com 09 Oct '01

09 Oct '01

Has anyone successfully built boost/thread on Linux using g++ ?. I am getting two compilation errors. Seb.

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Thread Summary Experiment -- on the Wiki
by Jeff Garland 08 Oct '01

08 Oct '01

Last week we were having a discussion about the sort of content that might, or might not belong on the Wiki. I have tried another small experiment that might be a useful approach to augmenting the current boost information. The idea is to build a summary of mailing list discussion threads related to each library (or other topics). Many of the discussion on the mailing list can provide insight into the library design as well as solutions to specific problems not necessarily incorporated in the documentation. I built a small example for the function library. http://www.crystalclearsoftware.com/cgi-bin/boost_wiki/wiki.pl?Function_Lib… -_Mail_Thread_Summary I have used the following convention for this: -- Order the thread names by date -- Title of the thread is either the email title, or a more precise title followed by the original thread title in parens The link performs a search that returns all the items in the thread from the yahoo groups site. One problem is that since the search is full text, some threads cannot be easily retrieved. For example searching "function review" will return a pile of email on threads and other topics unrelated to function. Despite the issues, this would seem to me this would be a useful contribution library users could build. Thoughts? Jeff

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concept_check and B&N trick
by Eric Ford 03 Oct '01

03 Oct '01

I ran into problems using BOOST_CLASS_REQUIRES in conjunction with the base class in the Barton-Nackman trick/Curiously recursive template technique. I want to require functions that take the derived type as an argument. So I declare a variable of the derived at struct level in the concept class, but then g++ (2.95) complains about it being an invalid use of undefined type... forward declaration... . Is there a way to make this work? If so, does anyone have/know of an example I can see how to order things to make it work? Thanks, E

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Building regex/1.25.0 with MSVC6SP5, STLPort 4.0
by Markus Schöpflin 02 Oct '01

02 Oct '01

Hi there, I've been trying to build the regex library but failed miserably. The compiler always dies with an error in "regex_traits.hpp" C:\boost_1_25_0\libs\regex\build>nmake INCLUDES="-I%STL_INCLUDE%" -fvc6-stlport.mak Microsoft (R) Program Maintenance Utility Version 6.00.8168.0 Copyright (C) Microsoft Corp 1988-1998. All rights reserved. if not exist "vc6-stlport\" mkdir vc6-stlport if not exist "vc6-stlport\vc6-stlport-re300m\" mkdir vc6-stlport\vc6-stlport-re300m cl -IC:\STL\STLport-4.0\stlport /nologo /MT /W3 /GX /O2 /GB /GF /Gy /I..\..\..\ /D_MT /DWIN32 /DNDEBUG /D_MBCS /D_LIB / YX /FD /c -Fpvc6-stlport/vc6-stlport-re300m/vc6-stlport-re300m.pch -Fo./vc6-stlport/vc6-stlport-re300m/ -Fdvc6-stlport/vc6-stlport-re300m.pdb ../src/c_reg ex_traits.cpp c_regex_traits.cpp ..\..\..\boost/regex/regex_traits.hpp(596) : error C2059: syntax error : '<' ..\..\..\boost/regex/regex_traits.hpp(596) : error C2238: unexpected token(s) preceding ';' ..\..\..\boost/regex/regex_traits.hpp(597) : error C2059: syntax error : '<' ..\..\..\boost/regex/regex_traits.hpp(597) : error C2238: unexpected token(s) preceding ';' ..\..\..\boost/regex/regex_traits.hpp(688) : error C2059: syntax error : '<' ..\..\..\boost/regex/regex_traits.hpp(688) : error C2238: unexpected token(s) preceding ';' ..\..\..\boost/regex/regex_traits.hpp(689) : error C2059: syntax error : '<' ..\..\..\boost/regex/regex_traits.hpp(689) : error C2238: unexpected token(s) preceding ';' ..\..\..\boost/regex/regex_traits.hpp(690) : error C2059: syntax error : '<' ..\..\..\boost/regex/regex_traits.hpp(690) : error C2238: unexpected token(s) preceding ';' NMAKE : fatal error U1077: 'cl' : return code '0x2' Stop. The error stays the same if I try the new build system with the following command line: jam -ftools/build/allyourbase.jam -sTOOLS="msvc" -sBUILD="<include>%STL_INCLUDE%" If I look at the offending line in "regex_traits.hpp" it reads const std::ctype<char>* pctype; Obviously it doesn't know that ctype lives in the std namespace. It works if I use the STL supplied by Microsoft. Does anyone else use this combination of compiler and library and managed to successfully build the regex library? Markus 'mar

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RE: [Boost-Users] Building regex/1.25.0 with MSVC6SP5, STLPort 4. 0
by Jim.Hyslop 02 Oct '01

02 Oct '01

Markus Schöpflin [SMTP:markus.schoepflin@ginit-technology.com] wrote: > I've been trying to build the regex library but failed miserably. The > compiler always dies with an error in "regex_traits.hpp" [...] > It works if I use the STL supplied by Microsoft. I don't use STLPort, but you might try a slight modification to boost/config/suffix.hpp. Search for BOOST_NO_STDC_NAMESPACE, and you'll see the line: namespace std { using ::ptrdiff_t; using ::size_t; } Try adding "using ::ctype;" into the list of using declarations. This may not work, though; I don't know if a using declaration can nominate the name of a template. -- Jim

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How about a link to the burgeoning Wiki?
by Tom Matelich 01 Oct '01

01 Oct '01

http://www.crystalclearsoftware.com/cgi-bin/boost_wiki/wiki.pl

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RE: [Boost-Users] How about a link to the burgeoning Wiki?
by Jim.Hyslop 01 Oct '01

01 Oct '01

Paul Baxter [SMTP:paul_baxter@ntlworld.com] wrote: > Organised snippets from the mailing list (ala cpptips with the guru/C++ > newsgroups) and additional real user FAQs would seem the most useful content > to add to Wiki? That's the beauty of a Wiki: do you see something missing? *You* can add it! -- Jim

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