id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
10405,Problem building cpp_dec_float multiprecision example,magoni@…,John Maddock,"Dear developer,

I would like to build the small example shown at:

http://www.boost.org/doc/libs/1_56_0/libs/multiprecision/doc/html/boost_multiprecision/tut/floats/cpp_dec_float.html

But it fails to compile with MSVC 2008 on Windows 7:

1>Linking...
1>bmt.obj : error LNK2019: unresolved external symbol ""class boost::multiprecision::number<class boost::multiprecision::backends::cpp_dec_float<100,int,void>,1> __cdecl boost::math::tgamma<struct boost::multiprecision::detail::expression<struct boost::multiprecision::detail::multiply_immediates,class boost::multiprecision::number<class boost::multiprecision::backends::cpp_dec_float<100,int,void>,1>,class boost::multiprecision::number<class boost::multiprecision::backends::cpp_dec_float<100,int,void>,1>,void,void> >(struct boost::multiprecision::detail::expression<struct boost::multiprecision::detail::multiply_immediates,class boost::multiprecision::number<class boost::multiprecision::backends::cpp_dec_float<100,int,void>,1>,class boost::multiprecision::number<class boost::multiprecision::backends::cpp_dec_float<100,int,void>,1>,void,void>)"" (??$tgamma@U?$expression@Umultiply_immediates@detail@multiprecision@boost@@V?$number@V?$cpp_dec_float@$0GE@HX@backends@multiprecision@boost@@$00@34@V534@XX@detail@multiprecision@boost@@@math@boost@@YA?AV?$number@V?$cpp_dec_float@$0GE@HX@backends@multiprecision@boost@@$00@multiprecision@1@U?$expression@Umultiply_immediates@detail@multiprecision@boost@@V?$number@V?$cpp_dec_float@$0GE@HX@backends@multiprecision@boost@@$00@34@V534@XX@detail@31@@Z) referenced in function _main
1>bmt.obj : error LNK2019: unresolved external symbol ""class boost::multiprecision::number<class boost::multiprecision::backends::cpp_dec_float<100,int,void>,1> __cdecl boost::math::tgamma<class boost::multiprecision::number<class boost::multiprecision::backends::cpp_dec_float<100,int,void>,1> >(class boost::multiprecision::number<class boost::multiprecision::backends::cpp_dec_float<100,int,void>,1>)"" (??$tgamma@V?$number@V?$cpp_dec_float@$0GE@HX@backends@multiprecision@boost@@$00@multiprecision@boost@@@math@boost@@YA?AV?$number@V?$cpp_dec_float@$0GE@HX@backends@multiprecision@boost@@$00@multiprecision@1@V231@@Z) referenced in function _main
1>D:\Damien\Programmation\boost-multiprecision-test\Debug\boost-multiprecision-test.exe : fatal error LNK1120: 2 unresolved externals

And I don't understand why since it should be a header-only lib.
Any help would be highly appreciated.
Best regards,",Bugs,closed,To Be Determined,multiprecision,Boost 1.56.0,Problem,fixed,,