2 // (C) Copyright Dave Abrahams, Steve Cleary, Beman Dawes, Howard
3 // Hinnant & John Maddock 2000.
4 // Use, modification and distribution are subject to the Boost Software License,
5 // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
6 // http://www.boost.org/LICENSE_1_0.txt).
8 // See http://www.boost.org/libs/type_traits for most recent version including documentation.
11 #ifndef BOOST_TT_REMOVE_CONST_HPP_INCLUDED
12 #define BOOST_TT_REMOVE_CONST_HPP_INCLUDED
14 #include <boost/type_traits/is_volatile.hpp>
15 #include <boost/type_traits/broken_compiler_spec.hpp>
16 #include <boost/type_traits/detail/cv_traits_impl.hpp>
17 #include <boost/config.hpp>
18 #include <boost/detail/workaround.hpp>
22 #if BOOST_WORKAROUND(BOOST_MSVC,<=1300)
23 #include <boost/type_traits/msvc/remove_const.hpp>
26 // should be the last #include
27 #include <boost/type_traits/detail/type_trait_def.hpp>
31 #ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
35 template <typename T, bool is_vol>
36 struct remove_const_helper
42 struct remove_const_helper<T, true>
44 typedef T volatile type;
49 struct remove_const_impl
51 typedef typename remove_const_helper<
52 typename cv_traits_imp<T*>::unqualified_type
53 , ::boost::is_volatile<T>::value
57 #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
59 // We can't filter out rvalue_references at the same level as
60 // references or we get ambiguities from msvc:
63 struct remove_const_impl<T&&>
71 // * convert a type T to non-const type - remove_const<T>
73 BOOST_TT_AUX_TYPE_TRAIT_DEF1(remove_const,T,typename boost::detail::remove_const_impl<T>::type)
74 BOOST_TT_AUX_TYPE_TRAIT_PARTIAL_SPEC1_1(typename T,remove_const,T&,T&)
75 #if !defined(BOOST_NO_ARRAY_TYPE_SPECIALIZATIONS)
76 BOOST_TT_AUX_TYPE_TRAIT_PARTIAL_SPEC1_2(typename T,std::size_t N,remove_const,T const[N],T type[N])
77 BOOST_TT_AUX_TYPE_TRAIT_PARTIAL_SPEC1_2(typename T,std::size_t N,remove_const,T const volatile[N],T volatile type[N])
80 #elif !BOOST_WORKAROUND(BOOST_MSVC,<=1300)
82 BOOST_TT_AUX_TYPE_TRAIT_DEF1(remove_const,T,typename boost::detail::remove_const_impl<T>::type)
84 #endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
88 #include <boost/type_traits/detail/type_trait_undef.hpp>
90 #endif // BOOST_TT_REMOVE_CONST_HPP_INCLUDED