abstract conjunction.

2025-01-25 09:47:52 +03:00
parent c02def8acf
commit 01fd35e9f8
3 changed files with 57 additions and 4 deletions
@@ -0,0 +1,53 @@
+/*
+ * Distributed under the Boost Software License, Version 1.0.
+ * (See accompanying file LICENSE_1_0.txt or copy at
+ * https://www.boost.org/LICENSE_1_0.txt)
+ *
+ * Copyright (c) 2024 Georgiy Guminov
+ */
+/*!
+ * \file iterator/detail/type_traits/conjunction.hpp
+ *
+ * This header contains definition of \c conjunction type trait.
+ */
+
+#ifndef BOOST_ITERATOR_DETAIL_TYPE_TRAITS_CONJUNCTION_HPP_INCLUDED_
+#define BOOST_ITERATOR_DETAIL_TYPE_TRAITS_CONJUNCTION_HPP_INCLUDED_
+
+#include <type_traits>
+#include <boost/config.hpp>
+
+#ifdef BOOST_HAS_PRAGMA_ONCE
+#pragma once
+#endif
+
+#if (defined(__cpp_lib_logical_traits) && (__cpp_lib_logical_traits >= 201510l)) || \
+    (defined(BOOST_MSSTL_VERSION) && (BOOST_MSSTL_VERSION >= 140) && (_MSC_FULL_VER >= 190023918) && (BOOST_CXX_VERSION >= 201703l))
+
+namespace boost {
+namespace iterators {
+namespace detail {
+
+using std::conjunction;
+
+} // namespace detail
+} // namespace iterator
+} // namespace boost
+
+#else
+
+#include <boost/type_traits/conjunction.hpp>
+
+namespace boost {
+namespace iterators {
+namespace detail {
+
+using boost::conjunction;
+
+} // namespace detail
+} // namespace iterator
+} // namespace boost
+
+#endif
+
+#endif // BOOST_ITERATOR_DETAIL_TYPE_TRAITS_CONJUNCTION_HPP_INCLUDED_