matrixoperators.h

关于矩阵运算的很强的一个工具包

  XprBinOp<								\
    Fcnl_##NAME<typename E1::value_type, typename E2::value_type>,	\
    XprMatrix<E1, Rows1, Cols1>,					\
    XprMatrix<E2, Rows1, Cols1>						\
  >,									\
  Rows1, Cols1								\
>									\
operator OP (const XprMatrix<E1, Rows1, Cols1>& lhs, 			\
	     const XprMatrix<E2, Rows1, Cols1>& rhs) {			\
  return NAME (lhs, rhs);						\
}

TVMET_IMPLEMENT_MACRO(add, +)		// per se element wise
TVMET_IMPLEMENT_MACRO(sub, -)		// per se element wise
namespace element_wise {
  TVMET_IMPLEMENT_MACRO(mul, *)		// see as prod()
  TVMET_IMPLEMENT_MACRO(div, /)		// not defined for matrizes, must be element_wise
}
#undef TVMET_IMPLEMENT_MACRO


/*
 * operator(XprMatrix<E, Rows, Cols>,  POD)
 * operator(POD, XprMatrix<E, Rows, Cols>)
 * Note: operations +,-,*,/ are per se element wise
 */
#define TVMET_IMPLEMENT_MACRO(NAME, OP, POD)			\
template<class E, std::size_t Rows, std::size_t Cols>		\
inline								\
XprMatrix<							\
  XprBinOp<							\
    Fcnl_##NAME<typename E::value_type, POD >,			\
    XprMatrix<E, Rows, Cols>,					\
    XprLiteral< POD >						\
  >,								\
  Rows, Cols							\
>								\
operator OP (const XprMatrix<E, Rows, Cols>& lhs, POD rhs) {	\
  return NAME (lhs, rhs);					\
}								\
								\
template<class E,std::size_t Rows, std::size_t Cols>		\
inline								\
XprMatrix<							\
  XprBinOp<							\
    Fcnl_##NAME<POD, typename E::value_type>,			\
    XprLiteral< POD >,						\
    XprMatrix<E, Rows, Cols>					\
  >,								\
  Rows, Cols							\
>								\
operator OP (POD lhs, const XprMatrix<E, Rows, Cols>& rhs) {	\
  return NAME (lhs, rhs);					\
}

TVMET_IMPLEMENT_MACRO(add, +, int)
TVMET_IMPLEMENT_MACRO(sub, -, int)
TVMET_IMPLEMENT_MACRO(mul, *, int)
TVMET_IMPLEMENT_MACRO(div, /, int)

#if defined(TVMET_HAVE_LONG_LONG)
TVMET_IMPLEMENT_MACRO(add, +, long long int)
TVMET_IMPLEMENT_MACRO(sub, -, long long int)
TVMET_IMPLEMENT_MACRO(mul, *, long long int)
TVMET_IMPLEMENT_MACRO(div, /, long long int)
#endif // defined(TVMET_HAVE_LONG_LONG)

TVMET_IMPLEMENT_MACRO(add, +, float)
TVMET_IMPLEMENT_MACRO(sub, -, float)
TVMET_IMPLEMENT_MACRO(mul, *, float)
TVMET_IMPLEMENT_MACRO(div, /, float)

TVMET_IMPLEMENT_MACRO(add, +, double)
TVMET_IMPLEMENT_MACRO(sub, -, double)
TVMET_IMPLEMENT_MACRO(mul, *, double)
TVMET_IMPLEMENT_MACRO(div, /, double)

#if defined(TVMET_HAVE_LONG_DOUBLE)
TVMET_IMPLEMENT_MACRO(add, +, long double)
TVMET_IMPLEMENT_MACRO(sub, -, long double)
TVMET_IMPLEMENT_MACRO(mul, *, long double)
TVMET_IMPLEMENT_MACRO(div, /, long double)
#endif // defined(TVMET_HAVE_LONG_DOUBLE)

#undef TVMET_IMPLEMENT_MACRO


#if defined(TVMET_HAVE_COMPLEX)
/*
 * operator(XprMatrix<E, Rows, Cols>, complex<>)
 * operator(complex<>, XprMatrix<E, Rows, Cols>)
 * Note: operations +,-,*,/ are per se element wise
 * \todo type promotion
 */
#define TVMET_IMPLEMENT_MACRO(NAME, OP)				\
template<class E, std::size_t Rows, std::size_t Cols, class T>	\
inline								\
XprMatrix<							\
  XprBinOp<							\
    Fcnl_##NAME<typename E::value_type, std::complex<T> >,	\
    XprMatrix<E, Rows, Cols>,					\
    XprLiteral< std::complex<T> >				\
  >,								\
  Rows, Cols							\
>								\
operator OP (const XprMatrix<E, Rows, Cols>& lhs,		\
	     const std::complex<T>& rhs) {			\
  return NAME (lhs, rhs);					\
}								\
								\
template<class E, std::size_t Rows, std::size_t Cols, class T>	\
inline								\
XprMatrix<							\
  XprBinOp<							\
    Fcnl_##NAME<std::complex<T>, typename E::value_type>,	\
    XprLiteral< std::complex<T> >,				\
    XprMatrix<E, Rows, Cols>					\
  >,								\
  Rows, Cols							\
>								\
operator OP (const std::complex<T>& lhs,			\
	     const XprMatrix<E, Rows, Cols>& rhs) {		\
  return NAME (lhs, rhs);					\
}

TVMET_IMPLEMENT_MACRO(add, +)
TVMET_IMPLEMENT_MACRO(sub, -)
TVMET_IMPLEMENT_MACRO(mul, *)
TVMET_IMPLEMENT_MACRO(div, /)

#undef TVMET_IMPLEMENT_MACRO

#endif // defined(TVMET_HAVE_COMPLEX)


/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 * matrix specific operator*() = prod() operations
 *+++++++++++++++++++++++++++++++++++++++++++++++++++++++*/


/**
 * \fn operator*(const XprMatrix<E1, Rows1, Cols1>& lhs, const XprMatrix<E2, Cols1, Cols2>& rhs)
 * \brief Evaluate the product of two XprMatrix.
 * \ingroup _binary_operator
 * \sa prod(XprMatrix<E1, Rows1, Cols1> lhs, XprMatrix<E2, Cols1, Cols2> rhs)
 */
template<class E1, std::size_t Rows1, std::size_t Cols1,
	 class E2, std::size_t Cols2>
inline
XprMatrix<
  XprMMProduct<
    XprMatrix<E1, Rows1, Cols1>, Rows1, Cols1,	// M1(Rows1, Cols1)
    XprMatrix<E2, Cols1, Cols2>, Cols2		// M2(Cols1, Cols2)
  >,
  Rows1, Cols2
>
operator*(const XprMatrix<E1, Rows1, Cols1>& lhs, const XprMatrix<E2, Cols1, Cols2>& rhs) {
  return prod(lhs, rhs);
}


/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 * matrix-vector specific prod( ... ) operators
 *+++++++++++++++++++++++++++++++++++++++++++++++++++++++*/


/**
 * \fn operator*(const XprMatrix<E1, Rows, Cols>& lhs, const XprVector<E2, Cols>& rhs)
 * \brief Evaluate the product of XprMatrix and XprVector.
 * \ingroup _binary_operator
 * \sa prod(XprMatrix<E1, Rows, Cols> lhs, XprVector<E2, Cols> rhs)
 */
template<class E1, std::size_t Rows, std::size_t Cols,
	 class E2>
inline
XprVector<
  XprMVProduct<
    XprMatrix<E1, Rows, Cols>, Rows, Cols,
    XprVector<E2, Cols>
  >,
  Rows
>
operator*(const XprMatrix<E1, Rows, Cols>& lhs, const XprVector<E2, Cols>& rhs) {
  return prod(lhs, rhs);
}


/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 * Matrix integer and compare operators
 *+++++++++++++++++++++++++++++++++++++++++++++++++++++++*/


/*
 * operator(XprMatrix<>, XprMatrix<>)
 * Note: operations are per se element wise
 */
#define TVMET_IMPLEMENT_MACRO(NAME, OP)					\
template<class E1, std::size_t Rows, std::size_t Cols,			\
         class E2>							\
inline									\
XprMatrix<								\
  XprBinOp<								\
    Fcnl_##NAME<typename E1::value_type, typename E2::value_type>,	\
    XprMatrix<E1, Rows, Cols>,						\
    XprMatrix<E2, Rows, Cols>						\
  >,									\
  Rows, Cols								\
>									\
operator OP (const XprMatrix<E1, Rows, Cols>& lhs, 			\
	     const XprMatrix<E2, Rows, Cols>& rhs) {			\
  typedef XprBinOp<							\
    Fcnl_##NAME<typename E1::value_type, typename E2::value_type>,	\
    XprMatrix<E1, Rows, Cols>,						\
    XprMatrix<E2, Rows, Cols>						\
  >		    					expr_type;	\
  return XprMatrix<expr_type, Rows, Cols>(expr_type(lhs, rhs));		\
}

// integer operators only, e.g used on double you will get an error
namespace element_wise {
  TVMET_IMPLEMENT_MACRO(mod, %)
  TVMET_IMPLEMENT_MACRO(bitxor, ^)
  TVMET_IMPLEMENT_MACRO(bitand, &)
  TVMET_IMPLEMENT_MACRO(bitor, |)
  TVMET_IMPLEMENT_MACRO(shl, <<)
  TVMET_IMPLEMENT_MACRO(shr, >>)
}

// necessary operators for eval functions
TVMET_IMPLEMENT_MACRO(greater, >)
TVMET_IMPLEMENT_MACRO(less, <)
TVMET_IMPLEMENT_MACRO(greater_eq, >=)
TVMET_IMPLEMENT_MACRO(less_eq, <=)
TVMET_IMPLEMENT_MACRO(eq, ==)
TVMET_IMPLEMENT_MACRO(not_eq, !=)
TVMET_IMPLEMENT_MACRO(and, &&)
TVMET_IMPLEMENT_MACRO(or, ||)

#undef TVMET_IMPLEMENT_MACRO


#if defined(TVMET_HAVE_COMPLEX)
/*
 * operator(XprMatrix<E, Rows, Cols>, std::complex<>)
 * operator(std::complex<>, XprMatrix<E, Rows, Cols>)
 * Note: - per se element wise
 *       - bit ops on complex<int> doesn't make sense, stay away
 * \todo type promotion
 */
#define TVMET_IMPLEMENT_MACRO(NAME, OP)					\
template<class E, std::size_t Rows, std::size_t Cols, class T>		\
inline									\
XprMatrix<								\
  XprBinOp<								\
    Fcnl_##NAME<typename E::value_type, std::complex<T> >,		\
    XprMatrix<E, Rows, Cols>,						\
    XprLiteral< std::complex<T> >					\
  >,									\
  Rows, Cols								\
>									\
operator OP (const XprMatrix<E, Rows, Cols>& lhs, 			\
	     const std::complex<T>& rhs) {				\
  typedef XprBinOp<							\
    Fcnl_##NAME<typename E::value_type, std::complex<T> >,		\
    XprMatrix<E, Rows, Cols>,						\
    XprLiteral< std::complex<T> >					\
  >							expr_type;	\
  return XprMatrix<expr_type, Rows, Cols>(				\
    expr_type(lhs, XprLiteral< std::complex<T> >(rhs)));		\
}									\
									\
template<class E, std::size_t Rows, std::size_t Cols, class T>		\
inline									\
XprMatrix<								\
  XprBinOp<								\
    Fcnl_##NAME<std::complex<T>, typename E::value_type>,		\
    XprLiteral< std::complex<T> >,					\
    XprMatrix<E, Rows, Cols>						\
  >,									\
  Rows, Cols								\
>									\
operator OP (const std::complex<T>& lhs, 				\
	     const XprMatrix<E, Rows, Cols>& rhs) {			\
  typedef XprBinOp<							\
    Fcnl_##NAME< std::complex<T>, typename E::value_type>,		\
    XprLiteral< std::complex<T> >,					\
    XprMatrix<E, Rows, Cols>						\
  >							expr_type;	\
  return XprMatrix<expr_type, Rows, Cols>(				\
    expr_type(XprLiteral< std::complex<T> >(lhs), rhs));		\
}

// necessary operators for eval functions
TVMET_IMPLEMENT_MACRO(greater, >)
TVMET_IMPLEMENT_MACRO(less, <)
TVMET_IMPLEMENT_MACRO(greater_eq, >=)
TVMET_IMPLEMENT_MACRO(less_eq, <=)
TVMET_IMPLEMENT_MACRO(eq, ==)
TVMET_IMPLEMENT_MACRO(not_eq, !=)
TVMET_IMPLEMENT_MACRO(and, &&)
TVMET_IMPLEMENT_MACRO(or, ||)

#undef TVMET_IMPLEMENT_MACRO

#endif // defined(TVMET_HAVE_COMPLEX)


/*
 * operator(XprMatrix<E, Rows, Cols>, POD)
 * operator(POD, XprMatrix<E, Rows, Cols>)
 * Note: operations are per se element wise
 */
#define TVMET_IMPLEMENT_MACRO(NAME, OP, TP)				\
template<class E, std::size_t Rows, std::size_t Cols>			\
inline									\
XprMatrix<								\
  XprBinOp<								\
    Fcnl_##NAME<typename E::value_type, TP >,				\
    XprMatrix<E, Rows, Cols>,						\
    XprLiteral< TP >							\
  >,									\
  Rows, Cols								\
>									\
operator OP (const XprMatrix<E, Rows, Cols>& lhs, TP rhs) {		\
  typedef XprBinOp<							\
    Fcnl_##NAME<typename E::value_type, TP >,				\
    XprMatrix<E, Rows, Cols>,						\
    XprLiteral< TP >							\
  >							expr_type;	\
  return XprMatrix<expr_type, Rows, Cols>(				\
    expr_type(lhs, XprLiteral< TP >(rhs)));				\
}									\
									\
template<class E, std::size_t Rows, std::size_t Cols>			\
inline									\
XprMatrix<								\
  XprBinOp<								\
    Fcnl_##NAME<TP, typename E::value_type>,				\
    XprLiteral< TP >,							\
    XprMatrix<E, Rows, Cols>						\
  >,									\
  Rows, Cols								\
>									\
operator OP (TP lhs, const XprMatrix<E, Rows, Cols>& rhs) {		\
  typedef XprBinOp<							\
    Fcnl_##NAME< TP, typename E::value_type>,				\
    XprLiteral< TP >,							\
    XprMatrix<E, Rows, Cols>						\
  >							expr_type;	\
  return XprMatrix<expr_type, Rows, Cols>(				\
    expr_type(XprLiteral< TP >(lhs), rhs));				\
}


// integer operators only, e.g used on double you will get an error
namespace element_wise {
  TVMET_IMPLEMENT_MACRO(mod, %, int)
  TVMET_IMPLEMENT_MACRO(bitxor, ^, int)
  TVMET_IMPLEMENT_MACRO(bitand, &, int)
  TVMET_IMPLEMENT_MACRO(bitor, |, int)
  TVMET_IMPLEMENT_MACRO(shl, <<, int)
  TVMET_IMPLEMENT_MACRO(shr, >>, int)
}

// necessary operators for eval functions
TVMET_IMPLEMENT_MACRO(greater, >, int)
TVMET_IMPLEMENT_MACRO(less, <, int)
TVMET_IMPLEMENT_MACRO(greater_eq, >=, int)
TVMET_IMPLEMENT_MACRO(less_eq, <=, int)
TVMET_IMPLEMENT_MACRO(eq, ==, int)
TVMET_IMPLEMENT_MACRO(not_eq, !=, int)
TVMET_IMPLEMENT_MACRO(and, &&, int)
TVMET_IMPLEMENT_MACRO(or, ||, int)

#if defined(TVMET_HAVE_LONG_LONG)
// integer operators only
namespace element_wise {
  TVMET_IMPLEMENT_MACRO(mod, %, long long int)
  TVMET_IMPLEMENT_MACRO(bitxor, ^, long long int)
  TVMET_IMPLEMENT_MACRO(bitand, &, long long int)
  TVMET_IMPLEMENT_MACRO(bitor, |, long long int)
  TVMET_IMPLEMENT_MACRO(shl, <<, long long int)
  TVMET_IMPLEMENT_MACRO(shr, >>, long long int)
}

// necessary operators for eval functions
TVMET_IMPLEMENT_MACRO(greater, >, long long int)
TVMET_IMPLEMENT_MACRO(less, <, long long int)
TVMET_IMPLEMENT_MACRO(greater_eq, >=, long long int)
TVMET_IMPLEMENT_MACRO(less_eq, <=, long long int)
TVMET_IMPLEMENT_MACRO(eq, ==, long long int)
TVMET_IMPLEMENT_MACRO(not_eq, !=, long long int)
TVMET_IMPLEMENT_MACRO(and, &&, long long int)
TVMET_IMPLEMENT_MACRO(or, ||, long long int)
#endif // defined(TVMET_HAVE_LONG_LONG)

// necessary operators for eval functions
TVMET_IMPLEMENT_MACRO(greater, >, float)
TVMET_IMPLEMENT_MACRO(less, <, float)
TVMET_IMPLEMENT_MACRO(greater_eq, >=, float)
TVMET_IMPLEMENT_MACRO(less_eq, <=, float)
TVMET_IMPLEMENT_MACRO(eq, ==, float)
TVMET_IMPLEMENT_MACRO(not_eq, !=, float)
TVMET_IMPLEMENT_MACRO(and, &&, float)
TVMET_IMPLEMENT_MACRO(or, ||, float)

// necessary operators for eval functions
TVMET_IMPLEMENT_MACRO(greater, >, double)
TVMET_IMPLEMENT_MACRO(less, <, double)
TVMET_IMPLEMENT_MACRO(greater_eq, >=, double)
TVMET_IMPLEMENT_MACRO(less_eq, <=, double)
TVMET_IMPLEMENT_MACRO(eq, ==, double)
TVMET_IMPLEMENT_MACRO(not_eq, !=, double)
TVMET_IMPLEMENT_MACRO(and, &&, double)
TVMET_IMPLEMENT_MACRO(or, ||, double)

#if defined(TVMET_HAVE_LONG_DOUBLE)
// necessary operators for eval functions
TVMET_IMPLEMENT_MACRO(greater, >, long double)
TVMET_IMPLEMENT_MACRO(less, <, long double)
TVMET_IMPLEMENT_MACRO(greater_eq, >=, long double)
TVMET_IMPLEMENT_MACRO(less_eq, <=, long double)
TVMET_IMPLEMENT_MACRO(eq, ==, long double)
TVMET_IMPLEMENT_MACRO(not_eq, !=, long double)
TVMET_IMPLEMENT_MACRO(and, &&, long double)
TVMET_IMPLEMENT_MACRO(or, ||, long double)
#endif // defined(TVMET_HAVE_LONG_DOUBLE)

#undef TVMET_IMPLEMENT_MACRO


/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 * global unary operators
 *+++++++++++++++++++++++++++++++++++++++++++++++++++++++*/


/*
 * unary_operator(const XprMatrix<E, Rows, Cols>& m)
 * Note: per se element wise
 */
#define TVMET_IMPLEMENT_MACRO(NAME, OP)					\
template <class E, std::size_t Rows, std::size_t Cols>			\
inline									\
XprMatrix<								\
  XprUnOp<								\
    Fcnl_##NAME<typename E::value_type>,				\
    XprMatrix<E, Rows, Cols>						\
  >,									\
  Rows, Cols								\
>									\
operator OP (const XprMatrix<E, Rows, Cols>& m) {			\
  typedef XprUnOp<							\
    Fcnl_##NAME<typename E::value_type>,				\
    XprMatrix<E, Rows, Cols>						\
  >  							 expr_type;	\
  return XprMatrix<expr_type, Rows, Cols>(expr_type(m));		\
}

TVMET_IMPLEMENT_MACRO(not, !)
TVMET_IMPLEMENT_MACRO(compl, ~)
TVMET_IMPLEMENT_MACRO(neg, -)

#undef TVMET_IMPLEMENT_MACRO


} // namespace tvmet

#endif // TVMET_XPR_MATRIX_OPERATORS_H

// Local Variables:
// mode:C++
// tab-width:8
// End: