diff -r 2fe1408b6811 -r e1b950c65cb4 epoc32/include/stdapis/boost/graph/detail/is_same.hpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/epoc32/include/stdapis/boost/graph/detail/is_same.hpp Wed Mar 31 12:27:01 2010 +0100 @@ -0,0 +1,103 @@ + +// (C) Copyright Dave Abrahams, Steve Cleary, Beman Dawes, +// Howard Hinnant and John Maddock 2000. +// (C) Copyright Mat Marcus, Jesse Jones and Adobe Systems Inc 2001 + +// 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. + +// Fixed is_pointer, is_reference, is_const, is_volatile, is_same, +// is_member_pointer based on the Simulated Partial Specialization work +// of Mat Marcus and Jesse Jones. See http://opensource.adobe.com or +// http://groups.yahoo.com/group/boost/message/5441 +// Some workarounds in here use ideas suggested from "Generic: +// Mappings between Types and Values" +// by Andrei Alexandrescu (see http://www.cuj.com/experts/1810/alexandr.html). + + +#ifndef BOOST_TT_IS_SAME_HPP_INCLUDED +#define BOOST_TT_IS_SAME_HPP_INCLUDED + +#include +#ifdef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION +#include +#include +#include +#endif +// should be the last #include +#include + +namespace boost { + +#ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION + +BOOST_TT_AUX_BOOL_TRAIT_DEF2(is_same,T,U,false) +BOOST_TT_AUX_BOOL_TRAIT_PARTIAL_SPEC2_1(typename T,is_same,T,T,true) +#if BOOST_WORKAROUND(__BORLANDC__, < 0x600) +// without this, Borland's compiler gives the wrong answer for +// references to arrays: +BOOST_TT_AUX_BOOL_TRAIT_PARTIAL_SPEC2_1(typename T,is_same,T&,T&,true) +#endif + +#else // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION + +namespace detail { + +#ifdef BOOST_MSVC +// the following VC6 specific implementation is *NOT* legal +// C++, but has the advantage that it works for incomplete +// types. + +template< typename T1 > +struct is_same_part_1 +{ + template struct part_2 { enum { value = false }; }; + template<> struct part_2 { enum { value = true }; }; +}; + +template< typename T1, typename T2 > +struct is_same_impl +{ + enum { value = detail::is_same_part_1::template part_2::value }; +}; + +#else // generic "no-partial-specialization" version + +template +::boost::type_traits::yes_type +BOOST_TT_DECL is_same_tester(T*, T*); + +::boost::type_traits::no_type +BOOST_TT_DECL is_same_tester(...); + +template +struct is_same_impl +{ + static T t; + static U u; + + BOOST_STATIC_CONSTANT(bool, value = + (::boost::type_traits::ice_and< + (sizeof(type_traits::yes_type) == sizeof(detail::is_same_tester(&t,&u))), + (::boost::is_reference::value == ::boost::is_reference::value), + (sizeof(T) == sizeof(U)) + >::value)); +}; + +#endif // BOOST_MSVC + +} // namespace detail + +BOOST_TT_AUX_BOOL_TRAIT_DEF2(is_same,T,U,(::boost::detail::is_same_impl::value)) + +#endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION + +} // namespace boost + +#include + +#endif // BOOST_TT_IS_SAME_HPP_INCLUDED +