[Bug c++/23691] [4.0 Regression] `mpl_::bool_<false>::value' is not a valid template argument for type `bool' because it is a non-constant expression

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to work|4.0.0                       |4.0.0 4.1.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23691