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.
10 #ifndef BOOST_TT_ADD_CONST_HPP_INCLUDED
11 #define BOOST_TT_ADD_CONST_HPP_INCLUDED
13 #include "boost/config.hpp"
15 // should be the last #include
16 #include "boost/type_traits/detail/type_trait_def.hpp"
20 // * convert a type T to const type - add_const<T>
21 // this is not required since the result is always
22 // the same as "T const", but it does suppress warnings
23 // from some compilers:
25 #if defined(BOOST_MSVC)
26 // This bogus warning will appear when add_const is applied to a
27 // const volatile reference because we can't detect const volatile
28 // references with MSVC6.
29 # pragma warning(push)
30 # pragma warning(disable:4181) // warning C4181: qualifier applied to reference type ignored
33 BOOST_TT_AUX_TYPE_TRAIT_DEF1(add_const,T,T const)
35 #if defined(BOOST_MSVC)
39 #ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
40 BOOST_TT_AUX_TYPE_TRAIT_PARTIAL_SPEC1_1(typename T,add_const,T&,T&)
45 #include "boost/type_traits/detail/type_trait_undef.hpp"
47 #endif // BOOST_TT_ADD_CONST_HPP_INCLUDED