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(new) Boost.Plugin library
by Lasse Karkkainen 01 Nov '07

01 Nov '07

Hi, I have written a plugin registration library from scratch during the past few weeks. There seems to be a Boost.Plugin library (that I was not aware of) out there, but it isn't part of the distribution, so it seems fair to reuse the name. My implementation is far more generic than the old one, and not really aimed for dynamic libraries (that's just something that comes for free). A draft (for comments) is here: http://zi.fi/plugin/

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Suddenly unresolved symbols show up on the trunk
by Markus Schöpflin 01 Nov '07

01 Nov '07

Hello, I number of string tests just started failing with the following error: ld: Unresolved: boost::debug::under_debugger(void) boost::debug::attach_debugger(bool) boost::debug::detect_memory_leaks(bool) boost::debug::break_memory_alloc(long) boost::debug::set_debugger(boost::unit_test::basic_cstring<const char>, boost::unit_test::callback1<const boost::debug::d For example: libs/algorithm/string/test/predicate.test libs/algorithm/string/test/find.test libs/algorithm/string/test/regex.test What happened? Markus

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[Test] Patch to fix problems with VC8-Windows CE
by David Deakins 01 Nov '07

01 Nov '07

Attached is a small patch for execution_monitor.ipp to fix Windows CE-related problems in the new test library code. The changes are mostly just a few #ifdef blocks to account for the following: - The Windows CE CRT does not support _set_se_translator or _set_invalid_parameter_handler. - The Windows CE CRT supplies _vsnprintf instead of vsnprintf. - The Windows CE CRT does not support errno. Thanks, -Dave Index: execution_monitor.ipp =================================================================== --- execution_monitor.ipp (revision 40282) +++ execution_monitor.ipp (working copy) @@ -141,7 +141,9 @@ #endif +#ifndef UNDER_CE #include <errno.h> +#endif #include <boost/test/detail/suppress_warnings.hpp> @@ -158,7 +160,8 @@ #ifdef __BORLANDC__ # define BOOST_TEST_VSNPRINTF( a1, a2, a3, a4 ) std::vsnprintf( (a1), (a2), (a3), (a4) ) #elif BOOST_WORKAROUND(_MSC_VER, <= 1310) || \ - BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3000)) + BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3000)) || \ + defined(UNDER_CE) # define BOOST_TEST_VSNPRINTF( a1, a2, a3, a4 ) _vsnprintf( (a1), (a2), (a3), (a4) ) #else # define BOOST_TEST_VSNPRINTF( a1, a2, a3, a4 ) vsnprintf( (a1), (a2), (a3), (a4) ) @@ -905,6 +908,8 @@ //____________________________________________________________________________// +#ifndef UNDER_CE + void BOOST_TEST_CALL_DECL invalid_param_handler( wchar_t const* /* expr */, wchar_t const* /* func */, @@ -916,6 +921,8 @@ "Invalid parameter detected by C runtime library" ); } +#endif + //____________________________________________________________________________// void BOOST_TEST_CALL_DECL @@ -951,11 +958,14 @@ int execution_monitor::catch_signals( unit_test::callback0<int> const& F ) { +#ifndef UNDER_CE _invalid_parameter_handler old_iph; if( !p_catch_system_errors ) _set_se_translator( &detail::system_signal_exception::seh_catch_preventer ); - else { + else +#endif + { if( !!p_detect_fp_exceptions ) detail::switch_fp_exceptions( true ); @@ -963,15 +973,19 @@ _CrtSetReportHook( &detail::assert_reporting_function ); #endif +#ifndef UNDER_CE old_iph = _set_invalid_parameter_handler( reinterpret_cast<_invalid_parameter_handler>( &detail::invalid_param_handler ) ); +#endif } detail::system_signal_exception SSE( this ); + + int ret_val = 0; __try { __try { - return detail::do_invoke( m_custom_translators , F ); + ret_val = detail::do_invoke( m_custom_translators , F ); } __except( SSE( GetExceptionCode(), GetExceptionInformation() ) ) { throw SSE; @@ -982,11 +996,13 @@ if( !!p_detect_fp_exceptions ) detail::switch_fp_exceptions( false ); +#ifndef UNDER_CE _set_invalid_parameter_handler( old_iph ); +#endif } } - return 0; + return ret_val; } //____________________________________________________________________________// @@ -1093,10 +1109,20 @@ // ************** system_error ************** // // ************************************************************************** // +#ifdef UNDER_CE + system_error::system_error() +: p_errno( 0 ) +{} + +#else + +system_error::system_error() : p_errno( errno ) {} +#endif + //____________________________________________________________________________// } // namespace boost

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Re: [boost] [pimpl] Proposal. Determining interest.
by Vladimir.Batov＠wrsa.com.au 01 Nov '07

01 Nov '07

> I've downloaded it, read the documentation, and I think it looks promising. > > To test it out I'm converting a pimpled class in my code base to use > your library. This class is noncopyable and as such it isn't immediately > obvious to me whether the class should be modeled using the pimpl's > value semantics, pointer semantics, or some other semantic that doesn't > yet exist. > > > Thanks, > > Michael Marcin Achieving non-copyability seems as straightforward as struct Foo : public pimpl<Foo>::pointer_semantics, boost::noncopyable { }; Thanks, Vladimir.

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[fusion/range] rev 40506 broke xpressive
by Markus Schöpflin 31 Oct '07

31 Oct '07

Hello, this checkin: ------------------------------------------------------------------------ r40506 | nesotto | 2007-10-27 15:57:20 +0000 (Sat, 27 Oct 2007) | 1 line Changed paths: D /trunk/boost/range/const_reverse_iterator.hpp M /trunk/boost/range/metafunctions.hpp D /trunk/boost/range/result_iterator.hpp D /trunk/boost/range/reverse_result_iterator.hpp cleaned up deprecated headers ------------------------------------------------------------------------ is the cause for this errors seen in xpressive: cxx: Severe: ../../../boost/xpressive/detail/utility/symbols.hpp, line 24: could not open source file "boost/range/result_iterator.hpp" (srcfilnoopen) #include <boost/range/result_iterator.hpp> ------------------------------------------^ Probably xpressive needs an update? Regards, Markus

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[crypto] stream(buf) ctor to message_digest
by Chris Fairles 31 Oct '07

31 Oct '07

To calculate md5's of large files, I added a ctor to message_digest: template <typename charT, class traits> explicit message_digest(const std::basic_ios<charT, traits> & s) { std::basic_streambuf<charT, traits> * sb = s.rdbuf(); std::streamsize sz = 0; charT buf[block_size]; while( (sz = sb->sgetn(buf, block_size)) != 0 ) { input(buf, sz); } } Its just as easy to do this outside the message_digest class using input(void*,size_t) but it seems that calculating md5 checksums for large files might be common enough to warrant it. This may not be the best impl. I use basic_ios because its the first class in the ios_base hierarchy that provides rdbuf(). Thoughts? Chris

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[Math Toolkit] Linker errors on SunCC
by Sohail Somani 31 Oct '07

31 Oct '07

Hi Math Toolkit developers. (Sending to this list as library is still in development?) If I try and run the tests on SunCC using the following command: /opt/SunStudio12/SUNWspro/bin/CC -o \ build/debug/vendor/boost/libs/math/test/log1p_expm1_test \ -library=stlport4,Crun \ build/debug/vendor/boost/libs/math/test/log1p_expm1_test.o \ -Lbuild/debug/vendor/boost -Lvendor/boost -lboost_regex I get this linker error: Undefined first referenced symbol in file int boost::math::tools::digits<boost::math::concepts::real_concept>() build/debug/vendor/boost/libs/math/test/log1p_expm1_test.o ld: fatal: Symbol referencing errors. No output written to build/debug/vendor/boost/libs/math/test/log1p_expm1_test Has anyone seen this before? What can I do to fix this? Thanks in advance, Sohail

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1.35 release procedure questions
by Andreas Huber 31 Oct '07

31 Oct '07

Hi Given the instructions at <http://svn.boost.org/trac/boost/wiki/ImprovingPractices#Mergingchangesfromd…> I'm supposed to wait for an announcement to merge my trunk changes to the release branch. 1. How will this announcement be made? Would it be possible to get an email? 2. Is there an estimate when the announcement will be made? 3. How am I supposed to merge status/explicit-failures-markup.xml? Will I not somehow screw up the merge history of that file when I just merge the changes relevant for my library and ignore all the other pending changes? Thanks, -- Andreas Huber When replying by private email, please remove the words spam and trap from the address shown in the header.

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Unblocking Threads
by Rui Gil 31 Oct '07

31 Oct '07

Hello, Can any one tell me how can I unblock a thread that is block in a socket? I'm using the select/pselect function to detect activity in a group of sockets, and when I'm try to stop the thread she can be lock in the select function. Thanks in Advance, Rui Gil

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Boost.Format does not support %zu
by Christoph Duelli 31 Oct '07

31 Oct '07

When printing a size_t in C I use "%zu" (I do hope that is correct). The 'z' modifier is not supported in Boost.Format (1.34.1). In order to ease porting C code it would be nice if it was supported (i.e. ignored ;-) as well as l, L and h. Best regards Christoph

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