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Regex link issues
by Aaron Nauman 14 Feb '05

14 Feb '05

I have upgraded by stlport libs to 4.6.2 (from 4.5) and boost libs to 1_32_0 (from 1_26_0). I am getting odd linking errors in the regex library. I am on vc6 sp5 and linking dynamically. If I have something like this in the code, it links fine boost::regex test("foo"); But if I use an std::string, I get link errors. For example, this code std::string testStr("bar"); boost::regex test(testStr); Produces link errors vc.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: unsigned int __fastcall boost::reg_expression<char,class boost::regex_traits<char>,class boost::detail::allocator_adapter<char,class boost::detail::simple_alloc> >::se t_expression(class _STL::basic_string<char,class _STL::char_traits<char>,class _STL::allocator<char> > const &,unsigned int)" (__imp_?set_expression@?$reg_expression@DV?$regex_traits@D@boost@@V?$all ocator_adapter@DVsimple_alloc@detail@boost@@@detail @2@@boost@@QAIIABV?$basic_string@DV?$char_traits@D@_STL@@V?$allocator@D@ 2@@_STL@@I@Z) I dumped the exports for the library and there is mismatch in _STL and std namespaces. This is what I see in the new library 323 142 00026E00 ?set_expression@?$reg_expression@DV?$regex_traits@D@boost@@V?$allocator_ adapter@DVsimple_alloc@detail@boost@@@detail@2@@boost@@QAIIABV?$basic_st ring@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@I@Z The only difference seems to be _STL versus std. I know the std renaming is an stlport feature, but I am not sure where to go from here. If I look back into my old regex library, although the interfaces have changed, I see references to _STL, not std. Here is old library export (notice _STL) 61 3C 000010B0 ?Grep@RegEx@boost@@QAEIAAV?$vector@IV?$allocator@I@_STL@@@_STL@@ABV?$bas ic_string@DV?$char_traits@D@_STL@@V?$allocator@D@2@@4@I@Z Versus the new library export (notice std) 100 63 000010E0 ?Grep@RegEx@boost@@QAEIAAV?$vector@IV?$allocator@I@std@@@std@@ABV?$basic _string@DU?$char_traits@D@std@@V?$allocator@D@2@@4@K@Z Can someone please help me figure out how to get these consistent. Thanks! Aaron

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"template with C linkage"
by Chris Coleman 14 Feb '05

14 Feb '05

Hi, I'm struggling with Boost (1.32) on Solaris 8 at the moment - I do not have root access to the machine. The default compiler is gcc-2.95, and so has no <ostream> <locale> etc so the -sTOOLS=gcc toolset won't work. I then thought that the solution would be to install STLPort, but can't get this to build cleanly. Since then I have discovered that there is another version of gcc (gcc-3.2) hidden in /opt/sfw/gcc-3.2. With this I then built the boost libraries again, and installed them with the line: bjam "--prefix=/staff/cqc/ -sGCC_ROOT_DIRECTORY=/opt/sfw/gcc-3.2 -sTOOLS=gcc" install This seemed to work fine with no problems at all. I then moved the headers, and the libs to the approprite places, and set about compiling my project. The result below is repeated many many times about various files: /opt/sfw/gcc-3.2/bin/gcc -DHAVE_CONFIG_H -I. -I. -I.. -D_REENTRANT -c -o zz_broker.o `test -f zz_broker.cpp || echo './'`zz_broker.cpp In file included from /opt/sfw/gcc-3.2/include/c++/3.2/utility:66, from /staff/cqc/include/boost/config/select_stdlib_config.hpp:20, from /staff/cqc/include/boost/config.hpp:40, from /staff/cqc/include/boost/smart_ptr.hpp:14, from zz_broker.h:28, from zz_broker.cpp:24: /opt/sfw/gcc-3.2/include/c++/3.2/bits/stl_relops.h:91: template with C linkage /opt/sfw/gcc-3.2/include/c++/3.2/bits/stl_relops.h:104: template with C linkage /opt/sfw/gcc-3.2/include/c++/3.2/bits/stl_relops.h:117: template with C linkage /opt/sfw/gcc-3.2/include/c++/3.2/bits/stl_relops.h:130: template with C linkage I have searched the list archives and googled around quite alot, but can't seem to find any info. Any help will be greatly recieved, Cheers Chris This message has been scanned but we cannot guarantee that it and any attachments are free from viruses or other damaging content: you are advised to perform your own checks. Email communications with the University of Nottingham may be monitored as permitted by UK legislation.

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Re: [Boost-users] Re: Concatenation of many std::string
by Chateauneu Remi 14 Feb '05

14 Feb '05

Can I suggest this implementation which, thanks to your ideas, brings some speed-up, sometimes important ? It has to be used exactly like 'concat()' or 'fastcat()' that were suggested here. It has some specialised templates for char and fixed-size char arrays, which occur often in string concatenations, and have the advantage that their size is known at compile-time. -- DSL Komplett von GMX +++ Superg�nstig und stressfrei einsteigen! AKTION "Kein Einrichtungspreis" nutzen: http://www.gmx.net/de/go/dsl

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[boost.preprocessor] generating list of trait<T>::type
by Thorsten Ottosen 14 Feb '05

14 Feb '05

Hi All, I would to generate this list with the preprocessot lib: typename decay<T1>::type, typename decay<T2>::type .... BOOST_PP_BINARY_PARAMS don't seem to fit here. Any ideas of what I can do? Thanks -Thorsten -- Thorsten Ottosen ---------------------------- Dezide Aps -- Intelligent Customer Support: www.dezide.com Aalborg University --- Decision Support Systems: http://www.cs.aau.dk/index2.php?content=Research/bss C++ Boost: www.boost.org C++ Standard: http://www.open-std.org/JTC1/SC22/WG21/

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compiling a project
by Noah Schwartz 13 Feb '05

13 Feb '05

Hi, Im running Gentoo over here and I installed boost from gentoo's portage tree. I then tried to compile a program that included boost/python.hpp. It completely failed: /usr/include/boost/python/detail/wrap_python.hpp:41:24: patchlevel.h: No such file or directory /usr/include/boost/python/detail/wrap_python.hpp:121:21: Python.h: No such file or directory Looks like I don't have some local variables set to tell things im trying to build where to find these files. Im compiling this absurdly simple program (pretty much just an #include <boost/python.hpp> and a main that returns 0) using a Makefile. Do I need to export some paths? If so, which vars? Do I need to add something to my g++ line? I've never used python's interpreter in c++ and so im not sure what I need to add to my Makefile. Sorry if im not being clear...its kind of late. thanks, Noah

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Re: [Boost-users] building boost::regex lib with mingw from gnu/linux
by atoral＠dlsi.ua.es 13 Feb '05

13 Feb '05

I've executed mingw in verbose mode for the first input file from the boost regex library that fails to compile. This is the output: xxxxx@xxxxx:~/boost/boost_1_31_0/libs/regex/build$ i586-mingw32msvc-g++ --verbose -o generic/boost_regex/c_regex_traits.o -c -O2 -I../../../ ../src/c_regex_traits.cpp Reading specs from /usr/lib/gcc/i586-mingw32msvc/3.4.2/specs Configured with: /home/ron/devel/debian/mingw32/mingw32-3.4.2.20040916.1/build_dir/src/gcc-3.4.2-20040916-1/configure -v --prefix=/usr --target=i586-mingw32msvc --enable-languages=c,c++ --enable-threads --disable-multilib --enable-version-specific-runtime-libs Thread model: win32 gcc version 3.4.2 (mingw-special) /usr/libexec/gcc/i586-mingw32msvc/3.4.2/cc1plus -quiet -v -I../../../ ../src/c_regex_traits.cpp -quiet -dumpbase c_regex_traits.cpp -mtune=pentium -auxbase-strip generic/boost_regex/c_regex_traits.o -O2 -version -o /tmp/cccrEiOT.s ignoring nonexistent directory "/usr/lib/gcc/i586-mingw32msvc/3.4.2/../../../../i586-mingw32msvc/sys-include" #include "..." search starts here: #include <...> search starts here: ../../../ /usr/lib/gcc/i586-mingw32msvc/3.4.2/include/c++ /usr/lib/gcc/i586-mingw32msvc/3.4.2/include/c++/i586-mingw32msvc /usr/lib/gcc/i586-mingw32msvc/3.4.2/include/c++/backward /usr/lib/gcc/i586-mingw32msvc/3.4.2/include /usr/lib/gcc/i586-mingw32msvc/3.4.2/../../../../i586-mingw32msvc/include End of search list. GNU C++ version 3.4.2 (mingw-special) (i586-mingw32msvc) compiled by GNU C version 3.3.5 (Debian 1:3.3.5-2). GGC heuristics: --param ggc-min-expand=47 --param ggc-min-heapsize=32010 ../src/c_regex_traits.cpp: In static member function `static size_t boost::c_regex_traits<boost::regex_wchar_type>::strnarrow(char*, size_t, const boost::regex_wchar_type*)': ../src/c_regex_traits.cpp:1052: error: `wcstombs' is not a member of `std' Just in case it helps i attach as well the verbose output when using c++ (succesful compilation): guest@asterix:~/boost/boost_1_31_0/libs/regex/build$ g++ --verbose -o generic/boost_regex/c_regex_traits.o -c-O2 -I../../../ ../src/c_regex_traits.cpp Reading specs from /usr/lib/gcc-lib/i486-linux/3.3.5/specs Configured with: ../src/configure -v --enable-languages=c,c++,java,f77,pascal,objc,ada,treelang --prefix=/usr--mandir=/usr/share/man --infodir=/usr/share/info --with-gxx-include-dir=/usr/include/c++/3.3 --enable-shared--with-system-zlib --enable-nls --without-included-gettext --enable-__cxa_atexit --enable-clocale=gnu --enable-debug --enable-java-gc=boehm --enable-java-awt=xlib --enable-objc-gc i486-linux Thread model: posix gcc version 3.3.5 (Debian 1:3.3.5-5) /usr/lib/gcc-lib/i486-linux/3.3.5/cc1plus -quiet -v -I../../../ -D__GNUC__=3 -D__GNUC_MINOR__=3 -D__GNUC_PATCHLEVEL__=5 -D_GNU_SOURCE ../src/c_regex_traits.cpp -D__GNUG__=3 -quiet -dumpbase c_regex_traits.cpp -auxbase-strip generic/boost_regex/c_regex_traits.o -O2 -version -o /tmp/ccSZw3f5.s GNU C++ version 3.3.5 (Debian 1:3.3.5-5) (i486-linux) compiled by GNU C version 3.3.5 (Debian 1:3.3.5-5). GGC heuristics: --param ggc-min-expand=47 --param ggc-min-heapsize=32010 ignoring nonexistent directory "/usr/i486-linux/include" #include "..." search starts here: #include <...> search starts here: ../../.. /usr/include/c++/3.3 /usr/include/c++/3.3/i486-linux /usr/include/c++/3.3/backward /usr/local/include /usr/lib/gcc-lib/i486-linux/3.3.5/include /usr/include End of search list. as -V -Qy -o generic/boost_regex/c_regex_traits.o /tmp/ccSZw3f5.s GNU assembler version 2.15 (i386-linux) using BFD version 2.15 Thanks for the help, i do not see from the above if anything about compiler configuration is wrong. ---- Missatge original ---- > > The Boost config system isn't detecting that your std C++ lib is libstdc++3, > it uses: > > #include <utility> > > #if whatever... > #elif defined(__GLIBCPP__) || defined(__GLIBCXX__) > // must be libstdc++3... > // etc > for this purpose. > > Now I know that "real" mingw32 on win32, does define one or other of these > macros (depending upon it's version), so I'm perplexed why it wouldn't be > picking this up when cross-compiling under Linux. Maybe by running the > compiler in "verbose" mode you can figure out what's happening, is there any > chance that your compiler's include paths are setup incorrectly? > > Perplexed yours, > John Maddock. >

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Re: [Boost-users] building boost::regex lib with mingw from gnu/linux
by atoral＠dlsi.ua.es 12 Feb '05

12 Feb '05

This is the end of the output for config_info (using mingw32): Boost version 103100 BOOST_USER_CONFIG =<boost/config/user.hpp> BOOST_COMPILER_CONFIG ="boost/config/compiler/gcc.hpp" BOOST_PLATFORM_CONFIG ="boost/config/platform/win32.hpp" BOOST_DEDUCED_TYPENAME =typename BOOST_HAS_FTIME [no value] BOOST_HAS_LONG_LONG [no value] BOOST_HAS_NRVO [no value] BOOST_HAS_PARTIAL_STD_ALLOCATOR [no value] BOOST_HAS_STDINT_H [no value] BOOST_MSVC6_MEMBER_TEMPLATES [no value] BOOST_NESTED_TEMPLATE =template BOOST_NO_HASH [no value] BOOST_NO_MS_INT64_NUMERIC_LIMITS [no value] BOOST_NO_SLIST [no value] BOOST_NO_SWPRINTF [no value] BOOST_STD_EXTENSION_NAMESPACE =std BOOST_UNREACHABLE_RETURN(0) [no value] from what you said i do not see here BOOST_STDLIB_CONFIG , neither appear some of the following you pointed out: BOOST_NO_CWCHAR [no value] BOOST_NO_CWCTYPE [no value] BOOST_NO_HASH [no value] BOOST_NO_MS_INT64_NUMERIC_LIMITS [no value] BOOST_NO_SLIST [no value] BOOST_NO_STD_WSTREAMBUF [no value] BOOST_NO_STD_WSTRING [no value] BOOST_NO_SWPRINTF [no value] is there something wrong with the compiler or my makefile? ---- Missatge original ---- > > Hi, I would like to use the boost regex lib in a c++ program. This is > > being > > developed under gnu/linux (Debian-Sarge Kernel 2.4.27) with gcc 3.3.5. > > Also, we are creating binaries for Win32 by cross compiling with MinGW > > (i586-mingw32msvc-g++ (GCC) 3.4.2 (mingw-special)). > > > > Thus, i have to build the boost::regex library for both gnu/linux and > > win32. > > There was no problem to get the linux version (it is included in Debian, > > and > > anyway the source succeded to compile), but i'm having trouble to compile > > the win version. > > > > I compile from <boost_root_dir>/boost_1_31_0/libs/regex/build by using > > generic.mak (make -f generic.mak). in this file i've just added these > > lines: > > CXX=i586-mingw32msvc-g++ > > LINKER=i586-mingw32msvc-ar > > > > This is the output i obtain: > > > > xxxxx@xxxxx:~/boost/boost_1_31_0/libs/regex/build$ make -f generic.mak > > i586-mingw32msvc-g++ -o generic/boost_regex/c_regex_traits.o -c - O2 > > -I../../../ ../src/c_regex_traits.cpp > > ../src/c_regex_traits.cpp: In static member function `static size_t > > boost::c_regex_traits<boost::regex_wchar_type>::strnarrow(char*, size_t, > > const boost::regex_wchar_type*)': > > ../src/c_regex_traits.cpp:1052: error: `wcstombs' is not a member of `std' > > make: *** [generic/boost_regex/c_regex_traits.o] Error 1 > > > > any clues about what i'm doing wrong? > > Looks like a configuration issue: can you try compiling and *running* the > program libs/config/test/config_info.cpp, in the output at the end you > should see: > > BOOST_USER_CONFIG =<boost/config/user.hpp> > BOOST_COMPILER_CONFIG ="boost/config/compiler/gcc.hpp" > BOOST_STDLIB_CONFIG > ="boost/config/stdlib/libstdcpp3.hpp" > BOOST_PLATFORM_CONFIG > ="boost/config/platform/win32.hpp" > > and then: > > BOOST_NO_CWCHAR [no value] > BOOST_NO_CWCTYPE [no value] > BOOST_NO_HASH [no value] > BOOST_NO_MS_INT64_NUMERIC_LIMITS [no value] > BOOST_NO_SLIST [no value] > BOOST_NO_STD_WSTREAMBUF [no value] > BOOST_NO_STD_WSTRING [no value] > BOOST_NO_SWPRINTF [no value] > > If these aren't correct then we'll have to try and diagnose the problem > somehow (attach the full output from the config_info program if you can). > > If you just want to hack around then issue, then just add - DBOOST_NO_WREGEX > to the compile command line, > > John. >

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RE: [Boost-users] [Signals] Named slot group usage?
by Brian Braatz 11 Feb '05

11 Feb '05

I do not use named slots. I do however wish that I could Add META-DATA to the slot. Specifically, for debugging I would like signals to store a user supplied structure with the slot. Why I am requesting this: I have one library that rides on top of signals\slots extensively. Because I am using it quite extensively, it is difficult to debug. I want to be able to "go back later" and have code that can tell me where that slot "came from". Right now, I keep this separate in a vector<mystruct>. This is ugly, because the slot can disappear without the vector knowing about it. The other thing I would also like to use this functionality for would be this: Fire a signal, where only slots that get notified are the ones that match an expression which checks the metadata I have provided. Even if I have to do this manually- this would be a nice feature for my usage of slots\signals. (yes I am pushing this library beyond what it was designed for and understand that :) ) > -----Original Message----- > From: boost-users-bounces(a)lists.boost.org [mailto:boost-users- > bounces(a)lists.boost.org] On Behalf Of Douglas Gregor > Sent: Friday, February 11, 2005 5:59 AM > To: Boost mailing list > Cc: boost-users(a)lists.boost.org > Subject: [Boost-users] [Signals] Named slot group usage? > > I'm trying to determine how widely used named slot groups are in the > Signals library. I would appreciate it if I could get some feedback on > if they're used, how they're used, etc. In particular: > > (1) Do you use named slot groups? > (2) Did the FIFO ordering guarantees in 1.32.0 and the ability to > add > to the front or back of the slot list alleviate the need for named slot > groups? > (3) If performance of connection/disconnection of named slot groups > were to get worse (e.g., linear in the number of slots), would it > seriously impact the performance of your application? > > Responses should probably come to me, personally, unless they would be > of interest to the group. > > Background: Signals performance is sub-par, and much of the problem can > be traced back to support for named slot groups. I'm trying to > determine the best way to proceed. > > Thanks, > Doug > > _______________________________________________ > Boost-users mailing list > Boost-users(a)lists.boost.org > http://lists.boost.org/mailman/listinfo.cgi/boost-users

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Reverse of boost::bind?
by Jonathan Biggar 11 Feb '05

11 Feb '05

I can use boost::bind to use a function that takes several arguments in a context where it is passed fewer arguments: void f1(int, double); boost::function<void(double)> f2(boost::bind(f, 1, _1)); f2(1.0); Is there something a way to do the reverse, which is to call a function that takes fewer arguments in a context where it is passed more arguments? void f3(int); boost::function<void(int,double)> f4(/*what goes in here?*/); f4(1, 1.0); Or am I stuck writing the function mapping by hand? -- Jon Biggar Levanta jon(a)levanta.com

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[Signals] Named slot group usage?
by Douglas Gregor 11 Feb '05

11 Feb '05

I'm trying to determine how widely used named slot groups are in the Signals library. I would appreciate it if I could get some feedback on if they're used, how they're used, etc. In particular: (1) Do you use named slot groups? (2) Did the FIFO ordering guarantees in 1.32.0 and the ability to add to the front or back of the slot list alleviate the need for named slot groups? (3) If performance of connection/disconnection of named slot groups were to get worse (e.g., linear in the number of slots), would it seriously impact the performance of your application? Responses should probably come to me, personally, unless they would be of interest to the group. Background: Signals performance is sub-par, and much of the problem can be traced back to support for named slot groups. I'm trying to determine the best way to proceed. Thanks, Doug

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