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| author | Remko Tronçon <git@el-tramo.be> | 2010-03-28 15:46:49 (GMT) |
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| committer | Remko Tronçon <git@el-tramo.be> | 2010-03-28 15:46:49 (GMT) |
| commit | f53a1ef582494458301b97bf6e546be52d7ff7e8 (patch) | |
| tree | 7571b5cbcbd8a8f1dd1c966c9045b6cb69f0e295 /3rdParty/Boost/src/boost/numeric/conversion/detail/sign_mixture.hpp | |
| parent | 638345680d72ca6acaf123f2c8c1c391f696e371 (diff) | |
| download | swift-contrib-f53a1ef582494458301b97bf6e546be52d7ff7e8.zip swift-contrib-f53a1ef582494458301b97bf6e546be52d7ff7e8.tar.bz2 | |
Moving submodule contents back.
Diffstat (limited to '3rdParty/Boost/src/boost/numeric/conversion/detail/sign_mixture.hpp')
| -rw-r--r-- | 3rdParty/Boost/src/boost/numeric/conversion/detail/sign_mixture.hpp | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/numeric/conversion/detail/sign_mixture.hpp b/3rdParty/Boost/src/boost/numeric/conversion/detail/sign_mixture.hpp new file mode 100644 index 0000000..c7f9e42 --- /dev/null +++ b/3rdParty/Boost/src/boost/numeric/conversion/detail/sign_mixture.hpp @@ -0,0 +1,72 @@ +// (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 +// +/////////////////////////////////////////////////////////////////////////////////////////////// + + |