December 2015 - Boost - lists.preview.boost.org

[Locale] MSVC 2015 facets issue
by Artyom Beilis 04 Jan '16

04 Jan '16

Hello, Today I had a discussion on this ticket https://svn.boost.org/trac/boost/ticket/11878 There was a basic issue with Boost.Locale that couldn't format numbers at all properly, after back and forth it was discovered an issue with MSVC library. https://svn.boost.org/trac/boost/ticket/11878#comment:10 What is the best way to address this issue (open a bug there is no github issue tracker on this :-) ... Thank You, Artyom Beilis

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Problems building Boost libraries for Windows Store when C++/CX is involved
by Mikael Olenfalk 04 Jan '16

04 Jan '16

Hi, I am working on porting the boost libraries we depend on to winrt, most porting is rather straightforward (basically switch from win32 apis which are 20 years old to apis which are 15 years old :D ). However I have hit a bit of a problem when compiling Boost.Log. Boost.Log depends on Boost.Asio which uses C++/CX to call some of the newer Store APIs (Windows::Networking and friends). When I build I get these errors: compile-c-c++ ..\..\..\bin.v2\libs\log\build\msvc-14.0\debug\log-api-winnt\threading-multi\windows-api-store\dump_ssse3.obj dump_ssse3.cpp ..\..\..\libs\log\src\dump_ssse3.cpp: fatal error C1107: could not find assembly 'platform.winmd': please specify the assembly search path using /AI or by setting the LIBPATH environment variable call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" x86 store >nul cl /Zm800 /ZW /EHsc -nologo @"..\..\..\bin.v2\libs\log\build\msvc-14.0\debug\log-api-winnt\threading-multi\windows-api-store\dump_ssse3.obj.rsp" (As you can see I have monkey-patched msvc.jam to append the "store" argument to vcvarsall.bat - to no avail :( -- the monkey-patch is here if you want to look at it: https://github.com/mauve/build/commits/universal-windows-boost-1.59.0 ) The @response file looks like this: "..\..\..\libs\log\src\dump_ssse3.cpp" -Fo"..\..\..\bin.v2\libs\log\build\msvc-14.0\debug\log-api-winnt\threading-multi\windows-api-store\dump_ssse3.obj" -TP /Z7 /Od /Ob0 /W3 /GR /MDd /Zc:forScope /Zc:wchar_t /wd4675 /EHs /arch:SSE2 /bigobj /wd4003 /wd4456 /wd4459 /wd4503 -c -DBOOST_ALL_NO_LIB=1 -DBOOST_CHRONO_DYN_LINK=1 -DBOOST_DATE_TIME_DYN_LINK=1 -DBOOST_FILESYSTEM_DYN_LINK=1 -DBOOST_LOG_BUILDING_THE_LIB=1 -DBOOST_LOG_DLL -DBOOST_SPIRIT_USE_PHOENIX_V3=1 -DBOOST_SYSTEM_DYN_LINK=1 -DBOOST_SYSTEM_NO_DEPRECATED -DBOOST_THREAD_BUILD_DLL=1 -DBOOST_THREAD_DONT_USE_CHRONO=1 -DBOOST_THREAD_USE_DLL=1 -DDATE_TIME_INLINE -DWINAPI_FAMILY=WINAPI_FAMILY_APP -D_CRT_SECURE_NO_DEPRECATE -D_CRT_SECURE_NO_WARNINGS -D_SCL_SECURE_NO_DEPRECATE -D_SCL_SECURE_NO_WARNINGS -D_WIN32_WINNT=0x0603 "-I..\..\.." Regards, Mikael

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Generic type inferencer function?
by Nat Goodspeed 04 Jan '16

04 Jan '16

Our code has any number of instances of this pattern: template <typename T, typename U> class SomeTemplate { SomeTemplate(const T& t, const U& u); ... }; template <typename T, typename U> SomeTemplate<T, U> make_SomeTemplate(const T& t, const U& u) { return SomeTemplate<T, U>(t, u); } Am I overlooking a generic boost::make<something>() of this general form? template <template<typename...> class CLASS_TEMPLATE, typename... ARGS> CLASS_TEMPLATE<ARGS...> make(ARGS && ... args) { return CLASS_TEMPLATE<ARGS...>(std::forward<ARGS>(args)...); } If that doesn't already exist... would it be useful to add (a less naive version) somewhere?

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[multiprecision] uses boost::math::gcd without including the header
by Peter Dimov 04 Jan '16

04 Jan '16

include/boost/multiprecision/cpp_int/misc.hpp uses boost::math::gcd (and lcm), but does not include common_factor_rt.hpp.

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Status of the CMake-ification
by Louis Dionne 02 Jan '16

02 Jan '16

Dear Boost, I'd like to inquire about the status of the CMake-ification of Boost that had been started a while ago. AFAICT, the effort is completely stopped now; is this correct? Also, I'd like to poll the community to gauge interest in the rebirth of such an effort. __I'm not proposing myself to work on such a rebirth__, but I'm just curious to know what the community thinks about it. I, for one, would love to see it happen. Regards, Louis -- View this message in context: http://boost.2283326.n4.nabble.com/Status-of-the-CMake-ification-tp4681599.… Sent from the Boost - Dev mailing list archive at Nabble.com.

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[winapi] [thread] Conflicting declarations on MinGW
by Antony Polukhin 01 Jan '16

01 Jan '16

Hi, Some of the Boost.DLL tests produce following warnings: ../boost/thread/win32/thread_primitives.hpp:175:83: warning: declaration of 'void* boost::detail::win32::GetModuleHandleA(const char*)' with C language linkage ../boost/detail/winapi/dll.hpp:47:1: warning: conflicts with previous declaration 'HINSTANCE__* GetModuleHandleA(boost::detail::winapi::LPCSTR_)' ../boost/thread/win32/thread_primitives.hpp:195:94: warning: declaration of 'int (__attribute__((__stdcall__)) * boost::detail::win32::GetProcAddress(void*, const char*))()' with C language linkage ../boost/detail/winapi/dll.hpp:82:1: warning: conflicts with previous declaration 'int (__attribute__((__stdcall__)) * GetProcAddress(boost::detail::winapi::HMODULE_, boost::detail::winapi::LPCSTR_))()' Andrey, Vicente what's the best way to resolve such issues? -- Best regards, Antony Polukhin

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[qvm] deduce_xx traits wouldn't introduce ODR issues.
by Vicente J. Botet Escriba 31 Dec '15

31 Dec '15

Hi, I wonder if the deduce_xx traits wouldn't introduce ODR issues. Remember the TBoost.Conversion library where conversion between two types was customizable. The fact that deduce_xx traits have two types would promote ODR as there is no one type that is expected to do the customization. I believe that changing the default to something depending on the first argument will be better than using the specific qvm type as result. If this is not enough, you could add symbolic operations taken the result type as parameter, e.g. if a+b is not something specified by A, the user could use sum<C>(a,b) Forget my comment if there is no ODR issue. Best, Vicente

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[dll] ready for master branch. Please merge
by Antony Polukhin 29 Dec '15

29 Dec '15

Hi, Boost.DLL is ready to appear in next release of Boost. Please, merge the DLL related changes into the master branch of boostorg/boost (changes for the develop branch were merged here: https://github.com/boostorg/boost/pull/94) Thanks! -- Best regards, Antony Polukhin

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[qvm] Today is the last day of QVM formal review extended period
by Adam Wulkiewicz 23 Dec '15

23 Dec '15

Dear Boost Community! Today is the last day of the extended period of QVM library formal review. Since now we received 4 reviews. I encourage you to send more, there is still some time left. I'd like to thank all of you who have sent reviews as well as those who have taken part in the discussions. I'm going to wait for additional reviews a few days in case someone wanted to send one after the end of the review period. Does any of you plan to do it? Regards, Adam

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Broken Link
by Mudit Sharma 23 Dec '15

23 Dec '15

All, The boost.python link provided on this page is broken: http://www.boost.org/doc/libs/1_60_0/more/getting_started/windows.html (See Boost.Python in section 3) Can anyone fix this? Thanks M

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