/usr/include/viennacl/meta/result_of.hpp is in libviennacl-dev 1.5.2-2.
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#define VIENNACL_META_RESULT_OF_HPP_
/* =========================================================================
Copyright (c) 2010-2014, Institute for Microelectronics,
Institute for Analysis and Scientific Computing,
TU Wien.
Portions of this software are copyright by UChicago Argonne, LLC.
-----------------
ViennaCL - The Vienna Computing Library
-----------------
Project Head: Karl Rupp rupp@iue.tuwien.ac.at
(A list of authors and contributors can be found in the PDF manual)
License: MIT (X11), see file LICENSE in the base directory
============================================================================= */
/** @file viennacl/meta/result_of.hpp
@brief A collection of compile time type deductions
*/
#include <string>
#include <fstream>
#include <sstream>
#include "viennacl/forwards.h"
#ifdef VIENNACL_WITH_UBLAS
#include <boost/numeric/ublas/matrix_sparse.hpp>
#include <boost/numeric/ublas/matrix.hpp>
#endif
#ifdef VIENNACL_WITH_EIGEN
#include <Eigen/Core>
#include <Eigen/Sparse>
#endif
#ifdef VIENNACL_WITH_MTL4
#include <boost/numeric/mtl/mtl.hpp>
#endif
#ifdef VIENNACL_WITH_OPENCL
#ifdef __APPLE__
#include <OpenCL/cl.h>
#else
#include "CL/cl.h"
#endif
#endif
#include <vector>
#include <map>
namespace viennacl
{
namespace result_of
{
//
// Retrieve alignment from vector
//
/** @brief Retrieves the alignment from a vector. Deprecated - will be replaced by a pure runtime facility in the future. */
template <typename T>
struct alignment
{
typedef typename T::ERROR_ARGUMENT_PROVIDED_IS_NOT_A_VECTOR_OR_A_MATRIX error_type;
enum { value = 1 };
};
/** \cond */
template <typename T>
struct alignment<const T>
{
enum { value = alignment<T>::value };
};
template <typename SCALARTYPE, unsigned int ALIGNMENT>
struct alignment< vector<SCALARTYPE, ALIGNMENT> >
{
enum { value = ALIGNMENT };
};
template <typename T>
struct alignment< vector_range<T> >
{
enum { value = alignment<T>::value };
};
template <typename T>
struct alignment< vector_slice<T> >
{
enum { value = alignment<T>::value };
};
// support for a*x with scalar a and vector x
template <typename LHS, typename RHS, typename OP>
struct alignment< vector_expression<LHS, RHS, OP> >
{
enum { value = alignment<LHS>::value };
};
// Matrices
template <typename SCALARTYPE, typename F, unsigned int ALIGNMENT>
struct alignment< matrix<SCALARTYPE, F, ALIGNMENT> >
{
enum { value = ALIGNMENT };
};
template <typename T>
struct alignment< matrix_range<T> >
{
enum { value = alignment<T>::value };
};
template <typename T>
struct alignment< matrix_slice<T> >
{
enum { value = alignment<T>::value };
};
template <typename LHS, typename RHS>
struct alignment< matrix_expression<LHS, RHS, op_trans> >
{
enum { value = alignment<LHS>::value };
};
/** \endcond */
//
// Majority specifier for matrices (row_major, column_major)
//
/** @brief Returns the orientation functor tag (either row_major or column_major) of a matrix */
template <typename T>
struct orientation_functor
{
typedef typename T::ERROR_ARGUMENT_PROVIDED_IS_NOT_A_MATRIX type;
};
/** \cond */
template <typename T>
struct orientation_functor<const T>
{
typedef typename orientation_functor<T>::type type;
};
template <typename SCALARTYPE, typename F, unsigned int ALIGNMENT>
struct orientation_functor< matrix<SCALARTYPE, F, ALIGNMENT> >
{
typedef F type;
};
template <typename T>
struct orientation_functor< matrix_range<T> >
{
typedef typename orientation_functor<T>::type type;
};
template <typename T>
struct orientation_functor< matrix_slice<T> >
{
typedef typename orientation_functor<T>::type type;
};
template <typename SCALARTYPE, typename F>
struct orientation_functor< matrix_base<SCALARTYPE, F> >
{
typedef F type;
};
template <typename LHS, typename RHS>
struct orientation_functor< matrix_expression<LHS, RHS, op_trans> >
{
typedef typename orientation_functor<LHS>::type type;
};
/** \endcond */
//
// Retrieve size_type
//
/** @brief Generic meta-function for retrieving the size_type associated with type T */
template <typename T>
struct size_type
{
typedef typename T::size_type type;
};
/** \cond */
template <typename T, typename SizeType>
struct size_type< vector_base<T, SizeType> >
{
typedef SizeType type;
};
#ifdef VIENNACL_WITH_EIGEN
template <class T, int a, int b, int c, int d, int e>
struct size_type< Eigen::Matrix<T, a, b, c, d, e> >
{
typedef vcl_size_t type;
};
template <>
struct size_type<Eigen::VectorXf>
{
typedef vcl_size_t type;
};
template <>
struct size_type<Eigen::VectorXd>
{
typedef vcl_size_t type;
};
template <typename T, int options>
struct size_type<Eigen::SparseMatrix<T, options> >
{
typedef vcl_size_t type;
};
#endif
/** \endcond */
//
// Retrieve value_type:
//
/** @brief Generic helper function for retrieving the value_type associated with type T */
template <typename T>
struct value_type
{
typedef typename T::value_type type;
};
/** \cond */
#ifdef VIENNACL_WITH_EIGEN
template <>
struct value_type<Eigen::MatrixXf>
{
typedef Eigen::MatrixXf::RealScalar type;
};
template <>
struct value_type<Eigen::MatrixXd>
{
typedef Eigen::MatrixXd::RealScalar type;
};
template <typename ScalarType, int option>
struct value_type<Eigen::SparseMatrix<ScalarType, option> >
{
typedef ScalarType type;
};
template <>
struct value_type<Eigen::VectorXf>
{
typedef Eigen::VectorXf::RealScalar type;
};
template <>
struct value_type<Eigen::VectorXd>
{
typedef Eigen::VectorXd::RealScalar type;
};
#endif
/** \endcond */
//
// Retrieve cpu value_type:
//
/** @brief Helper meta function for retrieving the main RAM-based value type. Particularly important to obtain T from viennacl::scalar<T> in a generic way. */
template <typename T>
struct cpu_value_type
{
typedef typename T::ERROR_CANNOT_DEDUCE_CPU_SCALAR_TYPE_FOR_T type;
};
/** \cond */
template <typename T>
struct cpu_value_type<const T>
{
typedef typename cpu_value_type<T>::type type;
};
template <>
struct cpu_value_type<char>
{
typedef char type;
};
template <>
struct cpu_value_type<unsigned char>
{
typedef unsigned char type;
};
template <>
struct cpu_value_type<short>
{
typedef short type;
};
template <>
struct cpu_value_type<unsigned short>
{
typedef unsigned short type;
};
template <>
struct cpu_value_type<int>
{
typedef int type;
};
template <>
struct cpu_value_type<unsigned int>
{
typedef unsigned int type;
};
template <>
struct cpu_value_type<long>
{
typedef int type;
};
template <>
struct cpu_value_type<unsigned long>
{
typedef unsigned long type;
};
template <>
struct cpu_value_type<float>
{
typedef float type;
};
template <>
struct cpu_value_type<double>
{
typedef double type;
};
template <typename T>
struct cpu_value_type<viennacl::scalar<T> >
{
typedef T type;
};
template <typename T>
struct cpu_value_type<viennacl::vector_base<T> >
{
typedef T type;
};
template <typename T>
struct cpu_value_type<viennacl::implicit_vector_base<T> >
{
typedef T type;
};
template <typename T, unsigned int ALIGNMENT>
struct cpu_value_type<viennacl::vector<T, ALIGNMENT> >
{
typedef T type;
};
template <typename T>
struct cpu_value_type<viennacl::vector_range<T> >
{
typedef typename cpu_value_type<T>::type type;
};
template <typename T>
struct cpu_value_type<viennacl::vector_slice<T> >
{
typedef typename cpu_value_type<T>::type type;
};
template <typename T1, typename T2, typename OP>
struct cpu_value_type<viennacl::vector_expression<const T1, const T2, OP> >
{
typedef typename cpu_value_type<T1>::type type;
};
template <typename T1, typename T2, typename OP>
struct cpu_value_type<const viennacl::vector_expression<const T1, const T2, OP> >
{
typedef typename cpu_value_type<T1>::type type;
};
template <typename T, typename F>
struct cpu_value_type<viennacl::matrix_base<T, F> >
{
typedef T type;
};
template <typename T>
struct cpu_value_type<viennacl::implicit_matrix_base<T> >
{
typedef T type;
};
template <typename T, typename F, unsigned int ALIGNMENT>
struct cpu_value_type<viennacl::matrix<T, F, ALIGNMENT> >
{
typedef T type;
};
template <typename T>
struct cpu_value_type<viennacl::matrix_range<T> >
{
typedef typename cpu_value_type<T>::type type;
};
template <typename T>
struct cpu_value_type<viennacl::matrix_slice<T> >
{
typedef typename cpu_value_type<T>::type type;
};
template <typename T, unsigned int ALIGNMENT>
struct cpu_value_type<viennacl::compressed_matrix<T, ALIGNMENT> >
{
typedef typename cpu_value_type<T>::type type;
};
template <typename T>
struct cpu_value_type<viennacl::compressed_compressed_matrix<T> >
{
typedef typename cpu_value_type<T>::type type;
};
template <typename T, unsigned int ALIGNMENT>
struct cpu_value_type<viennacl::coordinate_matrix<T, ALIGNMENT> >
{
typedef typename cpu_value_type<T>::type type;
};
template <typename T, unsigned int ALIGNMENT>
struct cpu_value_type<viennacl::ell_matrix<T, ALIGNMENT> >
{
typedef typename cpu_value_type<T>::type type;
};
template <typename T, unsigned int ALIGNMENT>
struct cpu_value_type<viennacl::hyb_matrix<T, ALIGNMENT> >
{
typedef typename cpu_value_type<T>::type type;
};
template <typename T, unsigned int ALIGNMENT>
struct cpu_value_type<viennacl::circulant_matrix<T, ALIGNMENT> >
{
typedef typename cpu_value_type<T>::type type;
};
template <typename T, unsigned int ALIGNMENT>
struct cpu_value_type<viennacl::hankel_matrix<T, ALIGNMENT> >
{
typedef typename cpu_value_type<T>::type type;
};
template <typename T, unsigned int ALIGNMENT>
struct cpu_value_type<viennacl::toeplitz_matrix<T, ALIGNMENT> >
{
typedef typename cpu_value_type<T>::type type;
};
template <typename T, unsigned int ALIGNMENT>
struct cpu_value_type<viennacl::vandermonde_matrix<T, ALIGNMENT> >
{
typedef typename cpu_value_type<T>::type type;
};
template <typename T1, typename T2, typename OP>
struct cpu_value_type<viennacl::matrix_expression<T1, T2, OP> >
{
typedef typename cpu_value_type<T1>::type type;
};
//
// Deduce compatible vector type for a matrix type
//
template <typename T>
struct vector_for_matrix
{
typedef typename T::ERROR_CANNOT_DEDUCE_VECTOR_FOR_MATRIX_TYPE type;
};
//ViennaCL
template <typename T, typename F, unsigned int A>
struct vector_for_matrix< viennacl::matrix<T, F, A> >
{
typedef viennacl::vector<T,A> type;
};
template <typename T, unsigned int A>
struct vector_for_matrix< viennacl::compressed_matrix<T, A> >
{
typedef viennacl::vector<T,A> type;
};
template <typename T, unsigned int A>
struct vector_for_matrix< viennacl::coordinate_matrix<T, A> >
{
typedef viennacl::vector<T,A> type;
};
#ifdef VIENNACL_WITH_UBLAS
//Boost:
template <typename T, typename F, typename A>
struct vector_for_matrix< boost::numeric::ublas::matrix<T, F, A> >
{
typedef boost::numeric::ublas::vector<T> type;
};
template <typename T, typename U, vcl_size_t A, typename B, typename C>
struct vector_for_matrix< boost::numeric::ublas::compressed_matrix<T, U, A, B, C> >
{
typedef boost::numeric::ublas::vector<T> type;
};
template <typename T, typename U, vcl_size_t A, typename B, typename C>
struct vector_for_matrix< boost::numeric::ublas::coordinate_matrix<T, U, A, B, C> >
{
typedef boost::numeric::ublas::vector<T> type;
};
#endif
template <typename T>
struct reference_if_nonscalar
{
typedef T & type;
};
#define VIENNACL_REFERENCE_IF_NONSCALAR_INT(TNAME) \
template <> struct reference_if_nonscalar<TNAME> { typedef TNAME type; }; \
template <> struct reference_if_nonscalar<const TNAME> { typedef const TNAME type; }; \
template <> struct reference_if_nonscalar<unsigned TNAME> { typedef unsigned TNAME type; }; \
template <> struct reference_if_nonscalar<const unsigned TNAME> { typedef const unsigned TNAME type; };
VIENNACL_REFERENCE_IF_NONSCALAR_INT(char)
VIENNACL_REFERENCE_IF_NONSCALAR_INT(short)
VIENNACL_REFERENCE_IF_NONSCALAR_INT(int)
VIENNACL_REFERENCE_IF_NONSCALAR_INT(long)
#undef VIENNACL_REFERENCE_IF_NONSCALAR_INT
template <>
struct reference_if_nonscalar<float>
{
typedef float type;
};
template <>
struct reference_if_nonscalar<const float>
{
typedef const float type;
};
template <>
struct reference_if_nonscalar<double>
{
typedef double type;
};
template <>
struct reference_if_nonscalar<const double>
{
typedef const double type;
};
/** \endcond */
//OpenCL equivalent type
/** @brief Metafunction for deducing the OpenCL type for a numeric type, e.g. float -> cl_float */
template<typename T>
struct cl_type
{
typedef T type;
};
/** \cond */
#ifdef VIENNACL_WITH_OPENCL
template<>
struct cl_type<float>{ typedef cl_float type; };
template<>
struct cl_type<double>{ typedef cl_double type; };
template<>
struct cl_type<int>{ typedef cl_int type; };
template<>
struct cl_type<unsigned int>{ typedef cl_uint type; };
template<>
struct cl_type<long>{ typedef cl_long type; };
template<>
struct cl_type<unsigned long>{ typedef cl_ulong type; };
template<>
struct cl_type<short>{ typedef cl_short type; };
template<>
struct cl_type<unsigned short>{ typedef cl_ushort type; };
template<>
struct cl_type<char>{ typedef cl_char type; };
template<>
struct cl_type<unsigned char>{ typedef cl_uchar type; };
#endif
/** \endcond */
} //namespace result_of
} //namespace viennacl
#endif
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