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authorHenrik Edin <henrik.edin@mongodb.com>2019-05-20 15:16:27 -0400
committerHenrik Edin <henrik.edin@mongodb.com>2019-05-22 09:27:54 -0400
commit5c12c52f6f9e7371b37e43d3cf5145d61ffa70d3 (patch)
tree2b07eb318ec88fda315a3039779e5b8231768264 /src/third_party/boost-1.70.0/boost/type_traits/remove_reference.hpp
parent48ea7f8532c6390cad46c0e81bbf3dee79229eab (diff)
downloadmongo-5c12c52f6f9e7371b37e43d3cf5145d61ffa70d3.tar.gz
SERVER-40834 Upgrade boost to version 1.70
Diffstat (limited to 'src/third_party/boost-1.70.0/boost/type_traits/remove_reference.hpp')
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+
+// (C) Copyright Steve Cleary, Beman Dawes, Howard Hinnant & John Maddock 2000.
+// Use, modification and distribution are subject to 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/type_traits for most recent version including documentation.
+
+#ifndef BOOST_TT_REMOVE_REFERENCE_HPP_INCLUDED
+#define BOOST_TT_REMOVE_REFERENCE_HPP_INCLUDED
+
+#include <boost/config.hpp>
+#include <boost/detail/workaround.hpp>
+
+namespace boost {
+
+
+namespace detail{
+//
+// We can't filter out rvalue_references at the same level as
+// references or we get ambiguities from msvc:
+//
+template <class T>
+struct remove_rvalue_ref
+{
+ typedef T type;
+};
+#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
+template <class T>
+struct remove_rvalue_ref<T&&>
+{
+ typedef T type;
+};
+#endif
+
+} // namespace detail
+
+template <class T> struct remove_reference{ typedef typename boost::detail::remove_rvalue_ref<T>::type type; };
+template <class T> struct remove_reference<T&>{ typedef T type; };
+
+#if defined(BOOST_ILLEGAL_CV_REFERENCES)
+// these are illegal specialisations; cv-qualifies applied to
+// references have no effect according to [8.3.2p1],
+// C++ Builder requires them though as it treats cv-qualified
+// references as distinct types...
+template <class T> struct remove_reference<T&const>{ typedef T type; };
+template <class T> struct remove_reference<T&volatile>{ typedef T type; };
+template <class T> struct remove_reference<T&const volatile>{ typedef T type; };
+#endif
+
+#if !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES)
+
+ template <class T> using remove_reference_t = typename remove_reference<T>::type;
+
+#endif
+
+} // namespace boost
+
+#endif // BOOST_TT_REMOVE_REFERENCE_HPP_INCLUDED