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Diffstat (limited to 'boost/test/data/monomorphic/sample_merge.hpp')
-rw-r--r-- | boost/test/data/monomorphic/sample_merge.hpp | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/boost/test/data/monomorphic/sample_merge.hpp b/boost/test/data/monomorphic/sample_merge.hpp new file mode 100644 index 0000000000..d7535beff7 --- /dev/null +++ b/boost/test/data/monomorphic/sample_merge.hpp @@ -0,0 +1,103 @@ +// (C) Copyright Gennadiy Rozental 2001. +// 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) + +// See http://www.boost.org/libs/test for the library home page. +// +/// @file +/// Defines helper routines and types for merging monomorphic samples +// *************************************************************************** + +#ifndef BOOST_TEST_DATA_MONOMORPHIC_SAMPLE_MERGE_HPP +#define BOOST_TEST_DATA_MONOMORPHIC_SAMPLE_MERGE_HPP + +// Boost.Test +#include <boost/test/data/config.hpp> +#include <boost/test/data/index_sequence.hpp> + +#include <boost/test/data/monomorphic/fwd.hpp> + +#include <boost/test/detail/suppress_warnings.hpp> + +namespace boost { +namespace unit_test { +namespace data { +namespace monomorphic { + +//____________________________________________________________________________// + +namespace ds_detail { + +template <class T> +struct is_tuple : std::false_type {}; + +template <class ...T> +struct is_tuple<std::tuple<T...>> : std::true_type {}; + +template <class T> +struct is_tuple<T&&> : is_tuple<typename std::decay<T>::type> {}; + +template <class T> +struct is_tuple<T&> : is_tuple<typename std::decay<T>::type> {}; + +template<typename T> +inline auto as_tuple_impl_xvalues( T const & arg, std::false_type /* is_rvalue_ref */ ) + -> decltype(std::tuple<T const&>(arg)) { + //return std::tuple<T const&>(arg); + return std::forward_as_tuple(arg); +} + +template<typename T> +inline auto as_tuple_impl_xvalues( T && arg, std::true_type /* is_rvalue_ref */ ) + -> decltype(std::make_tuple(std::forward<T>(arg))) { + return std::make_tuple(std::forward<T>(arg)); +} + + +template<typename T> +inline auto as_tuple_impl( T && arg, std::false_type /* is_tuple = nullptr */ ) + -> decltype(as_tuple_impl_xvalues(std::forward<T>(arg), + typename std::is_rvalue_reference<T&&>::type())) { + return as_tuple_impl_xvalues(std::forward<T>(arg), + typename std::is_rvalue_reference<T&&>::type()); +} + +//____________________________________________________________________________// + +template<typename T> +inline T && +as_tuple_impl(T && arg, std::true_type /* is_tuple */ ) { + return std::forward<T>(arg); +} + +template<typename T> +inline auto as_tuple( T && arg ) + -> decltype( as_tuple_impl(std::forward<T>(arg), + typename ds_detail::is_tuple<T>::type()) ) { + return as_tuple_impl(std::forward<T>(arg), + typename ds_detail::is_tuple<T>::type()); +} + +//____________________________________________________________________________// + +} // namespace ds_detail + +template<typename T1, typename T2> +inline auto +sample_merge( T1 && a1, T2 && a2 ) + -> decltype( std::tuple_cat(ds_detail::as_tuple(std::forward<T1>(a1)), + ds_detail::as_tuple(std::forward<T2>(a2)) ) ) { + return std::tuple_cat(ds_detail::as_tuple(std::forward<T1>(a1)), + ds_detail::as_tuple(std::forward<T2>(a2))); +} + +} // namespace monomorphic +} // namespace data +} // namespace unit_test +} // namespace boost + +#include <boost/test/detail/enable_warnings.hpp> + +#endif // BOOST_TEST_DATA_MONOMORPHIC_SAMPLE_MERGE_HPP + |