/*============================================================================= Copyright (c) 2011-2014 Bolero MURAKAMI https://github.com/bolero-MURAKAMI/Sprout Distributed under 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) =============================================================================*/ #ifndef SPROUT_WEED_DETAIL_ODIGITS_HPP #define SPROUT_WEED_DETAIL_ODIGITS_HPP #include #include #include #include #include #include #include #include namespace sprout { namespace weed { namespace detail { SPROUT_LITERAL_STRING_DEF(odigits, "01234567", 8); template struct ovalues; # define SPROUT_WEED_ODIGITS_TABLE_DEF \ {{0, 1, 2, 3, 4, 5, 6, 7}} template<> struct ovalues { public: typedef sprout::array value_type; public: SPROUT_STATIC_CONSTEXPR value_type value SPROUT_STATIC_CONSTEXPR_DATA_MEMBER_INNER(SPROUT_WEED_ODIGITS_TABLE_DEF) ; }; SPROUT_CONSTEXPR_OR_CONST sprout::weed::detail::ovalues::value_type sprout::weed::detail::ovalues::value SPROUT_STATIC_CONSTEXPR_DATA_MEMBER_OUTER(SPROUT_WEED_ODIGITS_TABLE_DEF) ; # undef SPROUT_WEED_ODIGITS_TABLE_DEF template inline SPROUT_CONSTEXPR sprout::tuples::tuple ovalue_at(std::size_t i) { return i < 8 ? sprout::tuples::tuple( static_cast(sprout::weed::detail::ovalues::value[i]), true ) : sprout::tuples::tuple( IntType(), false ) ; } template inline SPROUT_CONSTEXPR sprout::tuples::tuple from_odigit(Elem c) { return sprout::weed::detail::ovalue_at( sprout::distance( sprout::weed::detail::odigits::value.begin(), sprout::find( sprout::weed::detail::odigits::value.begin(), sprout::weed::detail::odigits::value.end(), c ) ) ); } } // namespace detail } // namespace weed } // namespace sprout #endif // #ifndef SPROUT_WEED_DETAIL_ODIGITS_HPP