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extending type_traits::rank ?
by Toon Knapen 06 May '06

06 May '06

I need an equivalent of type_traits::rank for a vector-matrix library I am working on so I thought about extending type_traits::rank for my own vector- and matrix-types. But is extending type_traits foreseen or even possible? And what is the best way to go about? The easiest way of course is to add a specialization for boost::type_traits::rank in my project's sources but this is not a very clean solution because this would require that I add stuff to the boost-namespace in my own project. Ideas? Thanks in advance, toon

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Concept for function object with result_type?
by David Abrahams 06 May '06

06 May '06

I know we have AdaptableUnaryFunction, which covers function objects with nested result_type and argument_type. But we've long since learned that argument_type is really unnecessary, and plenty of libraries are looking at result_type alone (e.g. bind). Do we have a concept for that sort of function object? If not, what shall we call it? Should we rather invent a concept for "UnaryFunction that works with boost/tr1::result_of<>" ? Maybe DeducibleUnaryFunction? -- Dave Abrahams Boost Consulting www.boost-consulting.com

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[type_traits] extent doc example bug
by Kim Barrett 06 May '06

06 May '06

In boost 1.33.1 (and in the documentation available from the web-site, if that is more recent?), the first example for the extent trait says extent<int[1]> inherits from integral_constant<std::size_t, 0>. That final "0" should be "1".

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A lost Sandbox file?
by Daryle Walker 06 May '06

06 May '06

For the past few months, I always get this message: //======================================================================== cvs update: nothing known about boost-sandbox/libs/fields_visitor/doc/boostbook.css //======================================================================== whenever I update my CVS. I checked that directory and the CSS file doesn't exist (or, at least, not anymore). Is there some sort of cache that needs clearing? -- Daryle Walker Mac, Internet, and Video Game Junkie darylew AT hotmail DOT com

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[Boost-bugs] [ boost-Bugs-1482703 ] time_from_string silently misreads date
by SourceForge.net 05 May '06

05 May '06

Bugs item #1482703, was opened at 2006-05-05 12:21 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=107586&aid=1482703&group_… Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: date_time Group: None Status: Open Resolution: None Priority: 5 Submitted By: Nobody/Anonymous (nobody) Assigned to: Jeff Garland (az_sw_dude) Summary: time_from_string silently misreads date Initial Comment: The following code snippet: boost::posix_time::ptime t3 = boost::posix_time::time_from_string ("2006-03-02"); cout << " t3 = " << boost::posix_time::to_simple_string(t3) << endl; Gives: t3 = 2006-May-24 14:03:02 Admittedly, the date-time string is misformatted, as it doesn't have the HH-MM-SS fields, but silently giving the wrong dete is likely to be a very serious problem to users. For the record, let me say that date_time and boost is general are really very fine work which I greatly appreciate. -Mike Albert MAlbert(a)princeton.com ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=107586&aid=1482703&group_… ------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Boost-bugs mailing list Boost-bugs(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/boost-bugs

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SoC idea: tool that converts existing docs to quick-book
by Thorsten Ottosen 05 May '06

05 May '06

Hi, I guess the hedline says it all. In our effort to make the documentation more modern and similar, such a tool would be great IMO. -Thorsten

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Re: [boost] [thread] 1.33.1 with vc71, links against msvcrt and msvcprt
by Dave McCabe 05 May '06

05 May '06

Roland Schwarz: > Don't know what you think is wrong on the above. These two dumpbin > indicate correct behaviour. Yes, they're absolutely correct, which is what I mean... Andrew had a -s version which linked against MSVCRT, which is the DLL runtime (not the single-threaded version, which Anthony thought). David ________________________________________________________________________ This e-mail, and any attachment, is confidential. If you have received it in error, do not use or disclose the information in any way, notify me immediately, and please delete it from your system. ________________________________________________________________________

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Re: [boost] [thread] 1.33.1 with vc71, links against msvcrt and msvcprt
by Dave McCabe 05 May '06

05 May '06

Anthony Williams: > Any build of the library that requires MSVCPRT and MSVCRT is just > broken, since they are the single-threaded runtime, and their use > indicates that the library was built without MT support. I'm surprised > the library manages to build at all without MT support, since the CRT > thread functions, such as beginthread, aren't available unless MT > support is enabled. MSVCRT and MSVCPRT are the DLL runtimes, not the single-threaded ones; you're thinking of LIBC and LIBCP. I have STLport versions, but: C:\Boost\lib>dumpbin /directives libboost_thread-vc71-mt-sp-1_33_1.lib | findstr DEFAULTLIB | sort | uniq /DEFAULTLIB:"LIBCMT" /DEFAULTLIB:"libcpmt" /DEFAULTLIB:"OLDNAMES" /DEFAULTLIB:"stlport_vc71_static.lib" /DEFAULTLIB:"uuid.lib" C:\Boost\lib>dumpbin /directives libboost_thread-vc71-mt-p-1_33_1.lib | findstr DEFAULTLIB | sort | uniq /DEFAULTLIB:"msvcprt" /DEFAULTLIB:"MSVCRT" /DEFAULTLIB:"OLDNAMES" /DEFAULTLIB:"stlport_vc71.lib" /DEFAULTLIB:"uuid.lib" Looks like someone has managed to build the static version against DLL runtimes, or just done some creative renaming... -- David McCabe ________________________________________________________________________ This e-mail, and any attachment, is confidential. If you have received it in error, do not use or disclose the information in any way, notify me immediately, and please delete it from your system. ________________________________________________________________________

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[mpl] preprocessed sources
by Michael Fink 05 May '06

05 May '06

Hi, I'm working around some issues in MPL with the evc4 (eMbedded Visual C++ 4) compiler. The compiler behaves just as a msvc6 one and includes files from "boost\mpl\aux_\preprocessed\msvc60\". In or_impl.hpp (and the same problem in and_impl.hpp) there is a defined for a templated "struct or_impl" and a specialisation for or_impl<false>::result_ after the struct. In evc4 the specialisation must be inside the class. The ..\msvc70\or.hpp implementation does this right for evc4. Now my question is how I should port the preprocessed sourcecode for evc4? Creating preprocessed files for evc4 somehow? Using the msvc70 files, given that it would work? Not using preprocessed files? I'm not familiar with this Boost library, I'm just porting it (as it gets used by many other libraries). bye Michael

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evc4 porting questions
by Michael Fink 05 May '06

05 May '06

Hi, I'm currently trying to port Boost to evc4 and while porting some questions arised that should be answered before. 1. There are some parts of the sourcecode where Ansi Win32-API-functions are used, e.g. CreateFileA. These are not supported under Windows CE. Some projects provided workaround when BOOST_NO_ANSI_APIS is defined and called e.g. the CreateFileW function instead. The functions often use std::string as parameters, and so string converting must be done. Now my question: is there a "best practice" way to do string conversions in Boost? Boost.Thread in one place uses the A2CW macro that comes from the ATL header atlconv.h to do string conversion (file boost/libs/thread/src/once.cpp). I had to include the necessary files at the top of this file to get it to compile. Is this the way it should be done on systems where ATL is available? 2. There are some parts in sourcecode where I have to do system-specific code for Windows CE. What is the preferred way to do that, introduce a BOOST_xx macro or use the one that is already defined by the compiler (that would be _WIN32_WCE). An example would be this: #if defined(__BORLANDC__) extern "C" BOOL WINAPI DllEntryPoint(HINSTANCE /*hInstance*/, DWORD dwReason, LPVOID /*lpReserved*/) #elif defined(_WIN32_WCE) extern "C" BOOL WINAPI DllMain(HANDLE /*hInstance*/, DWORD dwReason, LPVOID /*lpReserved*/) #else extern "C" BOOL WINAPI DllMain(HINSTANCE /*hInstance*/, DWORD dwReason, LPVOID /*lpReserved*/) #endif I guess as compiler-specific defines are used throughout the sourcecode, it's okay to use a macro like _WIN32_WCE. That's it. bye Michael

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