1
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).
7//
8// See http://www.boost.org/libs/type_traits for most recent version including documentation.
9
10
11#ifndef BOOST_TT_REMOVE_CV_HPP_INCLUDED
12#define BOOST_TT_REMOVE_CV_HPP_INCLUDED
13
14#include <boost/config.hpp>
15#include <boost/detail/workaround.hpp>
16#include <cstddef> // size_t
17
18namespace boost {
19
20 // convert a type T to a non-cv-qualified type - remove_cv<T>
21template <class T> struct remove_cv{ typedef T type; };
22template <class T> struct remove_cv<T const>{ typedef T type; };
23template <class T> struct remove_cv<T volatile>{ typedef T type; };
24template <class T> struct remove_cv<T const volatile>{ typedef T type; };
25
26#if !defined(BOOST_NO_ARRAY_TYPE_SPECIALIZATIONS)
27template <class T, std::size_t N> struct remove_cv<T const[N]>{ typedef T type[N]; };
28template <class T, std::size_t N> struct remove_cv<T const volatile[N]>{ typedef T type[N]; };
29template <class T, std::size_t N> struct remove_cv<T volatile[N]>{ typedef T type[N]; };
30#if !BOOST_WORKAROUND(BOOST_BORLANDC, < 0x600) && !defined(__IBMCPP__) && !BOOST_WORKAROUND(__DMC__, BOOST_TESTED_AT(0x840))
31template <class T> struct remove_cv<T const[]>{ typedef T type[]; };
32template <class T> struct remove_cv<T const volatile[]>{ typedef T type[]; };
33template <class T> struct remove_cv<T volatile[]>{ typedef T type[]; };
34#endif
35#endif
36
37#if !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES)
38
39 template <class T> using remove_cv_t = typename remove_cv<T>::type;
40
41#endif
42
43} // namespace boost
44
45#endif // BOOST_TT_REMOVE_CV_HPP_INCLUDED
46

source code of include/boost/type_traits/remove_cv.hpp