diff options
Diffstat (limited to 'boost/test/utils/is_forward_iterable.hpp')
| -rw-r--r-- | boost/test/utils/is_forward_iterable.hpp | 130 |
1 files changed, 72 insertions, 58 deletions
diff --git a/boost/test/utils/is_forward_iterable.hpp b/boost/test/utils/is_forward_iterable.hpp index 8b46b1b268..a7259b82c3 100644 --- a/boost/test/utils/is_forward_iterable.hpp +++ b/boost/test/utils/is_forward_iterable.hpp @@ -1,4 +1,4 @@ -// (C) Copyright Gennadiy Rozental 2012-2014. +// (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) @@ -12,10 +12,15 @@ #ifndef BOOST_TEST_UTILS_IS_FORWARD_ITERABLE_HPP #define BOOST_TEST_UTILS_IS_FORWARD_ITERABLE_HPP -#if defined(BOOST_NO_CXX11_DECLTYPE) || defined(BOOST_NO_CXX11_NULLPTR) || defined(BOOST_NO_CXX11_TRAILING_RESULT_TYPES) - #define BOOST_TEST_FWD_ITERABLE_CXX03 -#endif +#if defined(BOOST_NO_CXX11_DECLTYPE) || \ + defined(BOOST_NO_CXX11_NULLPTR) || \ + defined(BOOST_NO_CXX11_TRAILING_RESULT_TYPES) + // some issues with boost.config + #if !defined(BOOST_MSVC) || BOOST_MSVC_FULL_VER < 170061030 /* VC2012 upd 5 */ + #define BOOST_TEST_FWD_ITERABLE_CXX03 + #endif +#endif #if defined(BOOST_TEST_FWD_ITERABLE_CXX03) // Boost @@ -76,72 +81,81 @@ struct is_forward_iterable< std::set<K, C, A> > : public mpl::true_ {}; namespace ut_detail { - template<typename T> - struct is_present : public mpl::true_ {}; +template<typename T> +struct is_present : public mpl::true_ {}; + +//____________________________________________________________________________// - // some compiler do not implement properly decltype non expression involving members (eg. VS2013) - // a workaround is to use -> decltype syntax. - template <class T> - struct has_member_size { - private: +// some compiler do not implement properly decltype non expression involving members (eg. VS2013) +// a workaround is to use -> decltype syntax. +template <class T> +struct has_member_size { +private: struct nil_t {}; - template<typename U> static auto test(U*) -> decltype( boost::declval<U>().size() ); - template<typename> static nil_t test(...); + template<typename U> static auto test( U* ) -> decltype(boost::declval<U>().size()); + template<typename> static nil_t test( ... ); + +public: + static bool const value = !std::is_same< decltype(test<T>( nullptr )), nil_t>::value; +}; - public: - static bool const value = !std::is_same< decltype(test<T>(nullptr)), nil_t>::value; - }; +//____________________________________________________________________________// - template <class T> - struct has_member_begin { - private: +template <class T> +struct has_member_begin { +private: struct nil_t {}; - template<typename U> static auto test(U*) -> decltype( boost::declval<U>().begin() ); - template<typename> static nil_t test(...); - public: - static bool const value = !std::is_same< decltype(test<T>(nullptr)), nil_t>::value; - }; - - template <class T> - struct has_member_end { - private: + template<typename U> static auto test( U* ) -> decltype(boost::declval<U>().begin()); + template<typename> static nil_t test( ... ); +public: + static bool const value = !std::is_same< decltype(test<T>( nullptr )), nil_t>::value; +}; + +//____________________________________________________________________________// + +template <class T> +struct has_member_end { +private: struct nil_t {}; - template<typename U> static auto test(U*) -> decltype( boost::declval<U>().end() ); - template<typename> static nil_t test(...); - public: - static bool const value = !std::is_same< decltype(test<T>(nullptr)), nil_t>::value; - }; - - template <class T, class enabled = void> - struct is_forward_iterable_impl : std::false_type - {}; - - template <class T> - struct is_forward_iterable_impl< + template<typename U> static auto test( U* ) -> decltype(boost::declval<U>().end()); + template<typename> static nil_t test( ... ); +public: + static bool const value = !std::is_same< decltype(test<T>( nullptr )), nil_t>::value; +}; + +//____________________________________________________________________________// + +template <class T, class enabled = void> +struct is_forward_iterable_impl : std::false_type { +}; + +//____________________________________________________________________________// + +template <class T> +struct is_forward_iterable_impl< T, typename std::enable_if< - is_present<typename T::const_iterator>::value && - is_present<typename T::value_type>::value && - has_member_size<T>::value && - has_member_begin<T>::value && - has_member_end<T>::value && - !is_cstring<T>::value - >::type - > : std::true_type - {}; + is_present<typename T::const_iterator>::value && + is_present<typename T::value_type>::value && + has_member_size<T>::value && + has_member_begin<T>::value && + has_member_end<T>::value && + !is_cstring<T>::value + >::type +> : std::true_type +{}; +//____________________________________________________________________________// } // namespace ut_detail - -/*! Indicates that a specific type implements the forward iterable concept. - */ -template<typename T> -struct is_forward_iterable { - typedef typename std::remove_reference<T>::type T_ref; - typedef ut_detail::is_forward_iterable_impl<T_ref> is_fwd_it_t; - typedef mpl::bool_<is_fwd_it_t::value> type; - enum { value = is_fwd_it_t::value }; +/*! Indicates that a specific type implements the forward iterable concept. */ +template<typename T> +struct is_forward_iterable { + typedef typename std::remove_reference<T>::type T_ref; + typedef ut_detail::is_forward_iterable_impl<T_ref> is_fwd_it_t; + typedef mpl::bool_<is_fwd_it_t::value> type; + enum { value = is_fwd_it_t::value }; }; #endif /* defined(BOOST_TEST_FWD_ITERABLE_CXX03) */ |