id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
8644	Regression in alternative enum based implementation	Kohei Takahashi <flast@…>	John Maddock	"It seems to be wrong definition of alternative enum based implementation, which is introduced at [82886].

After [82886]:

{{{
#else
// alternative enum based implementation:
#  ifndef BOOST_NO_CXX11_VARIADIC_MACROS
#    define BOOST_STATIC_ASSERT( ... ) \
         enum { BOOST_JOIN(boost_static_assert_enum_, __LINE__) \
            = sizeof(::boost::STATIC_ASSERTION_FAILURE< (bool)( __VA_ARGS__ ) >) }
#  else
         enum { BOOST_JOIN(boost_static_assert_enum_, __LINE__) \
            = sizeof(::boost::STATIC_ASSERTION_FAILURE< (bool)( B ) >) }
#  endif
#endif
#endif // defined(BOOST_NO_CXX11_STATIC_ASSERT)
}}}

But should be this:
{{{#!diff
 #else
 // alternative enum based implementation:
 #  ifndef BOOST_NO_CXX11_VARIADIC_MACROS
 #    define BOOST_STATIC_ASSERT( ... ) \
          enum { BOOST_JOIN(boost_static_assert_enum_, __LINE__) \
             = sizeof(::boost::STATIC_ASSERTION_FAILURE< (bool)( __VA_ARGS__ ) >) }
 #  else
+#    define BOOST_STATIC_ASSERT( B ) \
          enum { BOOST_JOIN(boost_static_assert_enum_, __LINE__) \
             = sizeof(::boost::STATIC_ASSERTION_FAILURE< (bool)( B ) >) }
 #  endif
 #endif
 #endif // defined(BOOST_NO_CXX11_STATIC_ASSERT)
}}}

This bug affects 1.54 release branch."	Bugs	closed	Boost 1.54.0	static_assert	Boost Release Branch	Regression	fixed