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authorRemko Tronçon <git@el-tramo.be>2010-03-28 15:46:49 (GMT)
committerRemko Tronçon <git@el-tramo.be>2010-03-28 15:46:49 (GMT)
commitf53a1ef582494458301b97bf6e546be52d7ff7e8 (patch)
tree7571b5cbcbd8a8f1dd1c966c9045b6cb69f0e295 /3rdParty/Boost/src/boost/numeric/conversion/detail/sign_mixture.hpp
parent638345680d72ca6acaf123f2c8c1c391f696e371 (diff)
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Moving submodule contents back.
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diff --git a/3rdParty/Boost/src/boost/numeric/conversion/detail/sign_mixture.hpp b/3rdParty/Boost/src/boost/numeric/conversion/detail/sign_mixture.hpp
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+// (c) Copyright Fernando Luis Cacciola Carballal 2000-2004
+// Use, modification, and distribution is 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 library home page at http://www.boost.org/libs/numeric/conversion
+//
+// Contact the author at: fernando_cacciola@hotmail.com
+//
+#ifndef BOOST_NUMERIC_CONVERSION_DETAIL_SIGN_MIXTURE_FLC_12NOV2002_HPP
+#define BOOST_NUMERIC_CONVERSION_DETAIL_SIGN_MIXTURE_FLC_12NOV2002_HPP
+
+#include "boost/config.hpp"
+#include "boost/limits.hpp"
+
+#include "boost/numeric/conversion/sign_mixture_enum.hpp"
+#include "boost/numeric/conversion/detail/meta.hpp"
+
+#include "boost/mpl/integral_c.hpp"
+
+namespace boost { namespace numeric { namespace convdetail
+{
+ // Integral Constants for 'SignMixture'
+ typedef mpl::integral_c<sign_mixture_enum, unsigned_to_unsigned> unsig2unsig_c ;
+ typedef mpl::integral_c<sign_mixture_enum, signed_to_signed> sig2sig_c ;
+ typedef mpl::integral_c<sign_mixture_enum, signed_to_unsigned> sig2unsig_c ;
+ typedef mpl::integral_c<sign_mixture_enum, unsigned_to_signed> unsig2sig_c ;
+
+ // Metafunction:
+ //
+ // get_sign_mixture<T,S>::type
+ //
+ // Selects the appropriate SignMixture Integral Constant for the combination T,S.
+ //
+ template<class T,class S>
+ struct get_sign_mixture
+ {
+ typedef mpl::bool_< ::std::numeric_limits<S>::is_signed > S_signed ;
+ typedef mpl::bool_< ::std::numeric_limits<T>::is_signed > T_signed ;
+
+ typedef typename
+ for_both<S_signed, T_signed, sig2sig_c, sig2unsig_c, unsig2sig_c, unsig2unsig_c>::type
+ type ;
+ } ;
+
+ // Metafunction:
+ //
+ // for_sign_mixture<SignMixture,Sig2Sig,Sig2Unsig,Unsig2Sig,Unsig2Unsig>::type
+ //
+ // {SignMixture} is one of the Integral Constants for SignMixture, declared above.
+ // {Sig2Sig,Sig2Unsig,Unsig2Sig,Unsig2Unsig} are aribtrary types. (not metafunctions)
+ //
+ // According to the value of 'SignMixture', selects the corresponding type.
+ //
+ template<class SignMixture, class Sig2Sig, class Sig2Unsig, class Unsig2Sig, class Unsig2Unsig>
+ struct for_sign_mixture
+ {
+ typedef typename
+ ct_switch4<SignMixture
+ , sig2sig_c, sig2unsig_c, unsig2sig_c // default
+ , Sig2Sig , Sig2Unsig , Unsig2Sig , Unsig2Unsig
+ >::type
+ type ;
+ } ;
+
+} } } // namespace boost::numeric::convdetail
+
+#endif
+//
+///////////////////////////////////////////////////////////////////////////////////////////////
+
+