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// (C) Copyright Dave Abrahams, 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_ADD_CV_HPP_INCLUDED
#define BOOST_TT_ADD_CV_HPP_INCLUDED
#include <boost/config.hpp>
namespace boost {
// * convert a type T to a const volatile type - add_cv<T>
// this is not required since the result is always
// the same as "T const volatile", but it does suppress warnings
// from some compilers:
#if defined(BOOST_MSVC)
// This bogus warning will appear when add_volatile is applied to a
// const volatile reference because we can't detect const volatile
// references with MSVC6.
# pragma warning(push)
# pragma warning(disable:4181) // warning C4181: qualifier applied to reference type ignored
#endif
template <class T> struct add_cv{ typedef T const volatile type; };
#if defined(BOOST_MSVC)
# pragma warning(pop)
#endif
template <class T> struct add_cv<T&>{ typedef T& type; };
#if !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES)
template <class T> using add_cv_t = typename add_cv<T>::type;
#endif
} // namespace boost
#endif // BOOST_TT_ADD_CV_HPP_INCLUDED
Version data entries
28 entries across 28 versions & 1 rubygems