| Index: third_party/boost/boost/mpl/if.hpp
|
| diff --git a/third_party/boost/boost/mpl/if.hpp b/third_party/boost/boost/mpl/if.hpp
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..08fa6aef33a800e1409fa9307529471ad7179951
|
| --- /dev/null
|
| +++ b/third_party/boost/boost/mpl/if.hpp
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| @@ -0,0 +1,135 @@
|
| +
|
| +#ifndef BOOST_MPL_IF_HPP_INCLUDED
|
| +#define BOOST_MPL_IF_HPP_INCLUDED
|
| +
|
| +// Copyright Aleksey Gurtovoy 2000-2004
|
| +//
|
| +// 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.
|
| +
|
| +// $Source$
|
| +// $Date: 2004-09-07 04:53:22 -0400 (Tue, 07 Sep 2004) $
|
| +// $Revision: 24947 $
|
| +
|
| +#include <boost/mpl/aux_/value_wknd.hpp>
|
| +#include <boost/mpl/aux_/static_cast.hpp>
|
| +#include <boost/mpl/aux_/na_spec.hpp>
|
| +#include <boost/mpl/aux_/lambda_support.hpp>
|
| +#include <boost/mpl/aux_/config/integral.hpp>
|
| +#include <boost/mpl/aux_/config/ctps.hpp>
|
| +#include <boost/mpl/aux_/config/workaround.hpp>
|
| +
|
| +namespace boost { namespace mpl {
|
| +
|
| +#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
|
| +
|
| +template<
|
| + bool C
|
| + , typename T1
|
| + , typename T2
|
| + >
|
| +struct if_c
|
| +{
|
| + typedef T1 type;
|
| +};
|
| +
|
| +template<
|
| + typename T1
|
| + , typename T2
|
| + >
|
| +struct if_c<false,T1,T2>
|
| +{
|
| + typedef T2 type;
|
| +};
|
| +
|
| +// agurt, 05/sep/04: nondescriptive parameter names for the sake of DigitalMars
|
| +// (and possibly MWCW < 8.0); see http://article.gmane.org/gmane.comp.lib.boost.devel/108959
|
| +template<
|
| + typename BOOST_MPL_AUX_NA_PARAM(T1)
|
| + , typename BOOST_MPL_AUX_NA_PARAM(T2)
|
| + , typename BOOST_MPL_AUX_NA_PARAM(T3)
|
| + >
|
| +struct if_
|
| +{
|
| + private:
|
| + // agurt, 02/jan/03: two-step 'type' definition for the sake of aCC
|
| + typedef if_c<
|
| +#if defined(BOOST_MPL_CFG_BCC_INTEGRAL_CONSTANTS)
|
| + BOOST_MPL_AUX_VALUE_WKND(T1)::value
|
| +#else
|
| + BOOST_MPL_AUX_STATIC_CAST(bool, BOOST_MPL_AUX_VALUE_WKND(T1)::value)
|
| +#endif
|
| + , T2
|
| + , T3
|
| + > almost_type_;
|
| +
|
| + public:
|
| + typedef typename almost_type_::type type;
|
| +
|
| + BOOST_MPL_AUX_LAMBDA_SUPPORT(3,if_,(T1,T2,T3))
|
| +};
|
| +
|
| +#else
|
| +
|
| +// no partial class template specialization
|
| +
|
| +namespace aux {
|
| +
|
| +template< bool C >
|
| +struct if_impl
|
| +{
|
| + template< typename T1, typename T2 > struct result_
|
| + {
|
| + typedef T1 type;
|
| + };
|
| +};
|
| +
|
| +template<>
|
| +struct if_impl<false>
|
| +{
|
| + template< typename T1, typename T2 > struct result_
|
| + {
|
| + typedef T2 type;
|
| + };
|
| +};
|
| +
|
| +} // namespace aux
|
| +
|
| +template<
|
| + bool C_
|
| + , typename T1
|
| + , typename T2
|
| + >
|
| +struct if_c
|
| +{
|
| + typedef typename aux::if_impl< C_ >
|
| + ::template result_<T1,T2>::type type;
|
| +};
|
| +
|
| +// (almost) copy & paste in order to save one more
|
| +// recursively nested template instantiation to user
|
| +template<
|
| + typename BOOST_MPL_AUX_NA_PARAM(C_)
|
| + , typename BOOST_MPL_AUX_NA_PARAM(T1)
|
| + , typename BOOST_MPL_AUX_NA_PARAM(T2)
|
| + >
|
| +struct if_
|
| +{
|
| + enum { msvc_wknd_ = BOOST_MPL_AUX_MSVC_VALUE_WKND(C_)::value };
|
| +
|
| + typedef typename aux::if_impl< BOOST_MPL_AUX_STATIC_CAST(bool, msvc_wknd_) >
|
| + ::template result_<T1,T2>::type type;
|
| +
|
| + BOOST_MPL_AUX_LAMBDA_SUPPORT(3,if_,(C_,T1,T2))
|
| +};
|
| +
|
| +#endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
|
| +
|
| +BOOST_MPL_AUX_NA_SPEC(3, if_)
|
| +
|
| +}}
|
| +
|
| +#endif // BOOST_MPL_IF_HPP_INCLUDED
|
|
|