#ifndef SPROUT_FUNCTIONAL_FFT_FIXED_BITREV_TABLE_HPP #define SPROUT_FUNCTIONAL_FFT_FIXED_BITREV_TABLE_HPP #include #include #include #include #include #include #include #include #include #include namespace sprout { namespace fixed { namespace detail { template SPROUT_CONSTEXPR inline typename sprout::fixed::result_of::algorithm::type bitrev_table_impl( Container const& cont, sprout::index_tuple, std::size_t bit_length, typename sprout::fixed_container_traits::difference_type offset, typename sprout::fixed_container_traits::size_type size ) { return sprout::remake_clone( cont, sprout::size(cont), (Indexes >= offset && Indexes < offset + size ? sprout::bit_reverse_in( static_cast::value_type>(Indexes - offset), bit_length ) : *sprout::next(sprout::fixed_begin(cont), Indexes) )... ); } } // namespace detail // // bitrev_table // template SPROUT_CONSTEXPR inline typename sprout::fixed::result_of::algorithm::type bitrev_table( Container const& cont ) { return sprout::fixed::detail::bitrev_table_impl( cont, typename sprout::index_range<0, sprout::fixed_container_traits::fixed_size>::type(), sprout::empty(cont) ? 0 : sprout::bit_length(sprout::size(cont) - 1) , sprout::fixed_begin_offset(cont), sprout::size(cont) ); } } // namespace fixed using sprout::fixed::bitrev_table; } // namespace sprout #endif // #ifndef SPROUT_FUNCTIONAL_FFT_FIXED_BITREV_TABLE_HPP