id summary reporter owner description type status milestone component version severity resolution keywords cc 1586 [logic] 'boolalpha' : is not a member of 'std' faridz@… Douglas Gregor " The [http://stdcxx.apache.org/ stdcxx] is the another implementation of the STL (initially based on RogueWave STL). The following errors are encountered when running boost regression tests on msvc with stdcxx-4.2.0. {{{ ..\libs\logic\test\tribool_io_test.cpp(61) : error C2039: 'boolalpha' : is not a member of 'std' ..\libs\logic\test\tribool_io_test.cpp(61) : error C2065: 'boolalpha' : undeclared identifier ..\libs\logic\test\tribool_io_test.cpp(61) : error C2593: 'operator <<' is ambiguous }}} The proposed patch: {{{ Index: libs/logic/test/tribool_io_test.cpp =================================================================== --- libs/logic/test/tribool_io_test.cpp (revision 42906) +++ libs/logic/test/tribool_io_test.cpp (working copy) @@ -8,6 +8,7 @@ #include #include #include +#include // for std::boolalpha #ifndef BOOST_NO_STD_LOCALE # include }}} " Bugs closed Boost 1.35.0 logic Boost Development Trunk Showstopper fixed Douglas Gregor