| |
| #ifndef BOOST_MPL_PRINT_HPP_INCLUDED |
| #define BOOST_MPL_PRINT_HPP_INCLUDED |
| |
| // Copyright David Abrahams 2003 |
| // Copyright Aleksey Gurtovoy 2004 |
| // |
| // Distributed under 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/mpl for documentation. |
| |
| // $Id: print.hpp 49267 2008-10-11 06:19:02Z agurtovoy $ |
| // $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $ |
| // $Revision: 49267 $ |
| |
| #include <boost/mpl/aux_/config/msvc.hpp> |
| #include <boost/mpl/identity.hpp> |
| |
| namespace boost { namespace mpl { |
| |
| namespace aux { |
| #if defined(BOOST_MSVC) |
| # pragma warning(push, 3) |
| // we only want one warning from MSVC, so turn off the other one |
| # pragma warning(disable: 4307) |
| #elif defined(__MWERKS__) |
| # pragma warn_hidevirtual on |
| struct print_base { virtual void f() {} }; |
| #endif |
| |
| #if defined(__EDG_VERSION__) |
| template <class T> |
| struct dependent_unsigned |
| { |
| static const unsigned value = 1; |
| }; |
| #endif |
| } // namespace aux |
| |
| |
| template <class T> |
| struct print |
| : mpl::identity<T> |
| #if defined(__MWERKS__) |
| , aux::print_base |
| #endif |
| { |
| #if defined(BOOST_MSVC) |
| enum { n = sizeof(T) + -1 }; |
| #elif defined(__MWERKS__) |
| void f(int); |
| #else |
| enum { |
| n = |
| # if defined(__EDG_VERSION__) |
| aux::dependent_unsigned<T>::value > -1 |
| # else |
| sizeof(T) > -1 |
| # endif |
| }; |
| #endif |
| }; |
| |
| #if defined(BOOST_MSVC) |
| # pragma warning(pop) |
| #elif defined(__MWERKS__) |
| # pragma warn_hidevirtual reset |
| #endif |
| |
| }} |
| |
| #endif // BOOST_MPL_PRINT_HPP_INCLUDED |