projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
1 | //---------------------------------------------------------------------------// |
| 2 | // Copyright (c) 2013 Kyle Lutz <kyle.r.lutz@gmail.com> | |
| 3 | // | |
| 4 | // Distributed under the Boost Software License, Version 1.0 | |
| 5 | // See accompanying file LICENSE_1_0.txt or copy at | |
| 6 | // http://www.boost.org/LICENSE_1_0.txt | |
| 7 | // | |
| 8 | // See http://boostorg.github.com/compute for more information. | |
| 9 | //---------------------------------------------------------------------------// | |
| 10 | ||
| 11 | #ifndef BOOST_COMPUTE_TYPE_TRAITS_VECTOR_SIZE_HPP | |
| 12 | #define BOOST_COMPUTE_TYPE_TRAITS_VECTOR_SIZE_HPP | |
| 13 | ||
| 14 | #include <boost/preprocessor/cat.hpp> | |
| 15 | ||
| 16 | #include <boost/compute/types/fundamental.hpp> | |
| 17 | ||
| 18 | namespace boost { | |
| 19 | namespace compute { | |
| 20 | ||
| 21 | /// Meta-function returning the size (number of components) of a vector type | |
| 22 | /// \p T. For scalar types this function returns \c 1. | |
| 23 | /// | |
| 24 | /// For example, | |
| 25 | /// \code | |
| 26 | /// vector_size<float>::value == 1 | |
| 27 | /// vector_size<float4_>::value == 4 | |
| 28 | /// \endcode | |
| 29 | template<class T> | |
| 30 | struct vector_size | |
| 31 | { | |
| 32 | /// \internal_ | |
| 33 | BOOST_STATIC_CONSTANT(size_t, value = 1); | |
| 34 | }; | |
| 35 | ||
| 36 | /// \internal_ | |
| 37 | #define BOOST_COMPUTE_DECLARE_VECTOR_SIZE_FUNCTION(scalar, size) \ | |
| 38 | template<> \ | |
| 39 | struct vector_size<BOOST_PP_CAT(BOOST_PP_CAT(scalar, size), _)> \ | |
| 40 | { \ | |
| 41 | BOOST_STATIC_CONSTANT(size_t, value = size); \ | |
| 42 | }; | |
| 43 | ||
| 44 | /// \internal_ | |
| 45 | #define BOOST_COMPUTE_DECLARE_VECTOR_SIZE_FUNCTIONS(scalar) \ | |
| 46 | BOOST_COMPUTE_DECLARE_VECTOR_SIZE_FUNCTION(scalar, 2) \ | |
| 47 | BOOST_COMPUTE_DECLARE_VECTOR_SIZE_FUNCTION(scalar, 4) \ | |
| 48 | BOOST_COMPUTE_DECLARE_VECTOR_SIZE_FUNCTION(scalar, 8) \ | |
| 49 | BOOST_COMPUTE_DECLARE_VECTOR_SIZE_FUNCTION(scalar, 16) | |
| 50 | ||
| 51 | BOOST_COMPUTE_DECLARE_VECTOR_SIZE_FUNCTIONS(char) | |
| 52 | BOOST_COMPUTE_DECLARE_VECTOR_SIZE_FUNCTIONS(uchar) | |
| 53 | BOOST_COMPUTE_DECLARE_VECTOR_SIZE_FUNCTIONS(short) | |
| 54 | BOOST_COMPUTE_DECLARE_VECTOR_SIZE_FUNCTIONS(ushort) | |
| 55 | BOOST_COMPUTE_DECLARE_VECTOR_SIZE_FUNCTIONS(int) | |
| 56 | BOOST_COMPUTE_DECLARE_VECTOR_SIZE_FUNCTIONS(uint) | |
| 57 | BOOST_COMPUTE_DECLARE_VECTOR_SIZE_FUNCTIONS(long) | |
| 58 | BOOST_COMPUTE_DECLARE_VECTOR_SIZE_FUNCTIONS(ulong) | |
| 59 | BOOST_COMPUTE_DECLARE_VECTOR_SIZE_FUNCTIONS(float) | |
| 60 | BOOST_COMPUTE_DECLARE_VECTOR_SIZE_FUNCTIONS(double) | |
| 61 | ||
| 62 | } // end compute namespace | |
| 63 | } // end boost namespace | |
| 64 | ||
| 65 | #endif // BOOST_COMPUTE_TYPE_TRAITS_VECTOR_SIZE_HPP |