id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
9482	MSVC macros not undefined in boost/move/detail/config_end.hpp	Matthias R	Ion Gaztañaga	"Boost.Move defines several macros in boost/move/detail/config_begin.hpp to silence MSVC warnings. The corresponding cleanup code in boost/move/detail/config_end.hpp is incorrect and fails to properly undefine these macros:

{{{
#if defined BOOST_MSVC
   #pragma warning (pop)
   #ifdef BOOST_MOVE_DETAIL_CRT_SECURE_NO_DEPRECATE
      #undef BOOST_MOVE_DETAIL_CRT_SECURE_NO_DEPRECATE
      #undef _CRT_SECURE_NO_DEPRECATE
   #endif
   #ifndef BOOST_MOVE_SCL_SECURE_NO_WARNINGS
      #undef  BOOST_MOVE_SCL_SECURE_NO_WARNINGS
      #undef _SCL_SECURE_NO_WARNINGS
   #endif
#endif
}}}

A correct implementation would be
{{{
#if defined BOOST_MSVC
   #pragma warning (pop)
   #ifdef BOOST_MOVE_CRT_SECURE_NO_DEPRECATE
      #undef  BOOST_MOVE_CRT_SECURE_NO_DEPRECATE
      #undef _CRT_SECURE_NO_DEPRECATE
   #endif
   #ifdef BOOST_MOVE_SCL_SECURE_NO_WARNINGS
      #undef  BOOST_MOVE_SCL_SECURE_NO_WARNINGS
      #undef _SCL_SECURE_NO_WARNINGS
   #endif
#endif
}}}

This is quite problematic as the current version either undefines a previously defined macro, or leaks the macro definition, both of which lead to surprising behavior.

A patch against current trunk is attached."	Bugs	closed	To Be Determined	move	Boost 1.55.0	Problem	fixed