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- //---------------------------------------------------------------------------//
- // Copyright (c) 2013 Kyle Lutz <kyle.r.lutz@gmail.com>
- //
- // 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://boostorg.github.com/compute for more information.
- //---------------------------------------------------------------------------//
- #ifndef BOOST_COMPUTE_TYPE_TRAITS_VECTOR_SIZE_HPP
- #define BOOST_COMPUTE_TYPE_TRAITS_VECTOR_SIZE_HPP
- #include <boost/preprocessor/cat.hpp>
- #include <boost/compute/types/fundamental.hpp>
- namespace boost {
- namespace compute {
- /// Meta-function returning the size (number of components) of a vector type
- /// \p T. For scalar types this function returns \c 1.
- ///
- /// For example,
- /// \code
- /// vector_size<float>::value == 1
- /// vector_size<float4_>::value == 4
- /// \endcode
- template<class T>
- struct vector_size
- {
- /// \internal_
- BOOST_STATIC_CONSTANT(size_t, value = 1);
- };
- /// \internal_
- #define BOOST_COMPUTE_DECLARE_VECTOR_SIZE_FUNCTION(scalar, size) \
- template<> \
- struct vector_size<BOOST_PP_CAT(BOOST_PP_CAT(scalar, size), _)> \
- { \
- BOOST_STATIC_CONSTANT(size_t, value = size); \
- };
- /// \internal_
- #define BOOST_COMPUTE_DECLARE_VECTOR_SIZE_FUNCTIONS(scalar) \
- BOOST_COMPUTE_DECLARE_VECTOR_SIZE_FUNCTION(scalar, 2) \
- BOOST_COMPUTE_DECLARE_VECTOR_SIZE_FUNCTION(scalar, 4) \
- BOOST_COMPUTE_DECLARE_VECTOR_SIZE_FUNCTION(scalar, 8) \
- BOOST_COMPUTE_DECLARE_VECTOR_SIZE_FUNCTION(scalar, 16)
- BOOST_COMPUTE_DECLARE_VECTOR_SIZE_FUNCTIONS(char)
- BOOST_COMPUTE_DECLARE_VECTOR_SIZE_FUNCTIONS(uchar)
- BOOST_COMPUTE_DECLARE_VECTOR_SIZE_FUNCTIONS(short)
- BOOST_COMPUTE_DECLARE_VECTOR_SIZE_FUNCTIONS(ushort)
- BOOST_COMPUTE_DECLARE_VECTOR_SIZE_FUNCTIONS(int)
- BOOST_COMPUTE_DECLARE_VECTOR_SIZE_FUNCTIONS(uint)
- BOOST_COMPUTE_DECLARE_VECTOR_SIZE_FUNCTIONS(long)
- BOOST_COMPUTE_DECLARE_VECTOR_SIZE_FUNCTIONS(ulong)
- BOOST_COMPUTE_DECLARE_VECTOR_SIZE_FUNCTIONS(float)
- BOOST_COMPUTE_DECLARE_VECTOR_SIZE_FUNCTIONS(double)
- } // end compute namespace
- } // end boost namespace
- #endif // BOOST_COMPUTE_TYPE_TRAITS_VECTOR_SIZE_HPP
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