diff options
Diffstat (limited to 'src/third_party/boost-1.60.0/boost/type_traits/is_union.hpp')
-rw-r--r-- | src/third_party/boost-1.60.0/boost/type_traits/is_union.hpp | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/third_party/boost-1.60.0/boost/type_traits/is_union.hpp b/src/third_party/boost-1.60.0/boost/type_traits/is_union.hpp new file mode 100644 index 00000000000..c5e1a960196 --- /dev/null +++ b/src/third_party/boost-1.60.0/boost/type_traits/is_union.hpp @@ -0,0 +1,31 @@ + +// (C) Copyright Dave Abrahams, Steve Cleary, Beman Dawes, Howard +// Hinnant & John Maddock 2000. +// Use, modification and distribution are subject to the Boost Software License, +// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at +// http://www.boost.org/LICENSE_1_0.txt). +// +// See http://www.boost.org/libs/type_traits for most recent version including documentation. + + +#ifndef BOOST_TT_IS_UNION_HPP_INCLUDED +#define BOOST_TT_IS_UNION_HPP_INCLUDED + +#include <boost/type_traits/intrinsics.hpp> +#include <boost/type_traits/integral_constant.hpp> + +namespace boost { + +#ifdef BOOST_IS_UNION +template <class T> struct is_union : public integral_constant<bool, BOOST_IS_UNION(T)> {}; +#else +template <class T> struct is_union : public integral_constant<bool, false> {}; +#endif + +template <class T> struct is_union<T const> : public is_union<T>{}; +template <class T> struct is_union<T volatile const> : public is_union<T>{}; +template <class T> struct is_union<T volatile> : public is_union<T>{}; + +} // namespace boost + +#endif // BOOST_TT_IS_UNION_HPP_INCLUDED |