devtools/eigen
1
0
Fork 0
mirror of https://gitlab.com/libeigen/eigen.git synced 2026-04-10 11:34:33 +08:00
Code Issues Packages Projects Releases Wiki Activity

* make use of the EvalBeforeNestingBit and EvalBeforeAssigningBit

Browse Source 
in ei_xpr_copy and operator=, respectively.
 * added Matrix::lazyAssign() when EvalBeforeAssigningBit must be skipped
   (mainly internal use only)
 * all expressions are now stored by const reference
 * added Temporary xpr: .temporary() must be called on any temporary expression
   not directly returned by a function (mainly internal use only)
 * moved all functors in the Functors.h header
 * added some preliminaries stuff for the explicit vectorization
This commit is contained in:
Gael Guennebaud
2008-04-05 11:10:54 +00:00
parent 048910caae
commit b4a156671f
16 changed files with 597 additions and 360 deletions
Download Patch File Download Diff File Expand all files Collapse all files

158
Eigen/src/Core/CwiseUnaryOp.h
View File

@@ -99,16 +99,6 @@ MatrixBase<Derived>::cwise(const CustomUnaryOp& func) const
return CwiseUnaryOp<CustomUnaryOp, Derived>(derived(), func);
}
/** \internal
* \brief Template functor to compute the opposite of a scalar
*
* \sa class CwiseUnaryOp, MatrixBase::operator-
*/
template<typename Scalar> struct ei_scalar_opposite_op EIGEN_EMPTY_STRUCT {
const Scalar operator() (const Scalar& a) const { return -a; }
enum { Cost = NumTraits<Scalar>::AddCost };
};
/** \returns an expression of the opposite of \c *this
*/
template<typename Derived>
@@ -118,16 +108,6 @@ MatrixBase<Derived>::operator-() const
return CwiseUnaryOp<ei_scalar_opposite_op<Scalar>, Derived>(derived());
}
/** \internal
* \brief Template functor to compute the absolute value of a scalar
*
* \sa class CwiseUnaryOp, MatrixBase::cwiseAbs
*/
template<typename Scalar> struct ei_scalar_abs_op EIGEN_EMPTY_STRUCT {
const Scalar operator() (const Scalar& a) const { return ei_abs(a); }
enum { Cost = NumTraits<Scalar>::AddCost };
};
/** \returns an expression of the coefficient-wise absolute value of \c *this
*/
template<typename Derived>
@@ -137,16 +117,6 @@ MatrixBase<Derived>::cwiseAbs() const
return CwiseUnaryOp<ei_scalar_abs_op<Scalar>,Derived>(derived());
}
/** \internal
* \brief Template functor to compute the squared absolute value of a scalar
*
* \sa class CwiseUnaryOp, MatrixBase::cwiseAbs2
*/
template<typename Scalar> struct ei_scalar_abs2_op EIGEN_EMPTY_STRUCT {
const Scalar operator() (const Scalar& a) const { return ei_abs2(a); }
enum { Cost = NumTraits<Scalar>::MulCost };
};
/** \returns an expression of the coefficient-wise squared absolute value of \c *this
*/
template<typename Derived>
@@ -156,16 +126,6 @@ MatrixBase<Derived>::cwiseAbs2() const
return CwiseUnaryOp<ei_scalar_abs2_op<Scalar>,Derived>(derived());
}
/** \internal
* \brief Template functor to compute the conjugate of a complex value
*
* \sa class CwiseUnaryOp, MatrixBase::conjugate()
*/
template<typename Scalar> struct ei_scalar_conjugate_op EIGEN_EMPTY_STRUCT {
const Scalar operator() (const Scalar& a) const { return ei_conj(a); }
enum { Cost = NumTraits<Scalar>::IsComplex ? NumTraits<Scalar>::AddCost : 0 };
};
/** \returns an expression of the complex conjugate of *this.
*
* \sa adjoint() */
@@ -176,18 +136,6 @@ MatrixBase<Derived>::conjugate() const
return CwiseUnaryOp<ei_scalar_conjugate_op<Scalar>, Derived>(derived());
}
/** \internal
* \brief Template functor to cast a scalar to another type
*
* \sa class CwiseUnaryOp, MatrixBase::cast()
*/
template<typename Scalar, typename NewType>
struct ei_scalar_cast_op EIGEN_EMPTY_STRUCT {
typedef NewType result_type;
const NewType operator() (const Scalar& a) const { return static_cast<NewType>(a); }
enum { Cost = ei_is_same_type<Scalar, NewType>::ret ? 0 : NumTraits<NewType>::AddCost };
};
/** \returns an expression of *this with the \a Scalar type casted to
* \a NewScalar.
*
@@ -203,49 +151,6 @@ MatrixBase<Derived>::cast() const
return CwiseUnaryOp<ei_scalar_cast_op<Scalar, NewType>, Derived>(derived());
}
/** \internal
* \brief Template functor to multiply a scalar by a fixed other one
*
* \sa class CwiseUnaryOp, MatrixBase::operator*, MatrixBase::operator/
*/
template<typename Scalar>
struct ei_scalar_multiple_op {
ei_scalar_multiple_op(const Scalar& other) : m_other(other) {}
Scalar operator() (const Scalar& a) const { return a * m_other; }
const Scalar m_other;
enum { Cost = NumTraits<Scalar>::MulCost };
};
template<typename Scalar, bool HasFloatingPoint>
struct ei_scalar_quotient1_impl {
ei_scalar_quotient1_impl(const Scalar& other) : m_other(static_cast<Scalar>(1) / other) {}
Scalar operator() (const Scalar& a) const { return a * m_other; }
const Scalar m_other;
enum { Cost = NumTraits<Scalar>::MulCost };
};
template<typename Scalar>
struct ei_scalar_quotient1_impl<Scalar,false> {
ei_scalar_quotient1_impl(const Scalar& other) : m_other(other) {}
Scalar operator() (const Scalar& a) const { return a / m_other; }
const Scalar m_other;
enum { Cost = 2 * NumTraits<Scalar>::MulCost };
};
/** \internal
* \brief Template functor to divide a scalar by a fixed other one
*
* This functor is used to implement the quotient of a matrix by
* a scalar where the scalar type is not a floating point type.
*
* \sa class CwiseUnaryOp, MatrixBase::operator/
*/
template<typename Scalar>
struct ei_scalar_quotient1_op : ei_scalar_quotient1_impl<Scalar, NumTraits<Scalar>::HasFloatingPoint > {
ei_scalar_quotient1_op(const Scalar& other)
: ei_scalar_quotient1_impl<Scalar, NumTraits<Scalar>::HasFloatingPoint >(other) {}
};
/** \relates MatrixBase */
template<typename Derived>
const CwiseUnaryOp<ei_scalar_multiple_op<typename ei_traits<Derived>::Scalar>, Derived>
@@ -278,16 +183,6 @@ MatrixBase<Derived>::operator/=(const Scalar& other)
return *this = *this / other;
}
/** \internal
* \brief Template functor to compute the square root of a scalar
*
* \sa class CwiseUnaryOp, MatrixBase::cwiseSqrt()
*/
template<typename Scalar> struct ei_scalar_sqrt_op EIGEN_EMPTY_STRUCT {
const Scalar operator() (const Scalar& a) const { return ei_sqrt(a); }
enum { Cost = 5 * NumTraits<Scalar>::MulCost };
};
/** \returns an expression of the coefficient-wise square root of *this. */
template<typename Derived>
const CwiseUnaryOp<ei_scalar_sqrt_op<typename ei_traits<Derived>::Scalar>, Derived>
@@ -296,16 +191,6 @@ MatrixBase<Derived>::cwiseSqrt() const
return CwiseUnaryOp<ei_scalar_sqrt_op<Scalar>, Derived>(derived());
}
/** \internal
* \brief Template functor to compute the exponential of a scalar
*
* \sa class CwiseUnaryOp, MatrixBase::cwiseExp()
*/
template<typename Scalar> struct ei_scalar_exp_op EIGEN_EMPTY_STRUCT {
const Scalar operator() (const Scalar& a) const { return ei_exp(a); }
enum { Cost = 5 * NumTraits<Scalar>::MulCost };
};
/** \returns an expression of the coefficient-wise exponential of *this. */
template<typename Derived>
const CwiseUnaryOp<ei_scalar_exp_op<typename ei_traits<Derived>::Scalar>, Derived>
@@ -314,16 +199,6 @@ MatrixBase<Derived>::cwiseExp() const
return CwiseUnaryOp<ei_scalar_exp_op<Scalar>, Derived>(derived());
}
/** \internal
* \brief Template functor to compute the logarithm of a scalar
*
* \sa class CwiseUnaryOp, MatrixBase::cwiseLog()
*/
template<typename Scalar> struct ei_scalar_log_op EIGEN_EMPTY_STRUCT {
const Scalar operator() (const Scalar& a) const { return ei_log(a); }
enum { Cost = 5 * NumTraits<Scalar>::MulCost };
};
/** \returns an expression of the coefficient-wise logarithm of *this. */
template<typename Derived>
const CwiseUnaryOp<ei_scalar_log_op<typename ei_traits<Derived>::Scalar>, Derived>
@@ -332,16 +207,6 @@ MatrixBase<Derived>::cwiseLog() const
return CwiseUnaryOp<ei_scalar_log_op<Scalar>, Derived>(derived());
}
/** \internal
* \brief Template functor to compute the cosine of a scalar
*
* \sa class CwiseUnaryOp, MatrixBase::cwiseCos()
*/
template<typename Scalar> struct ei_scalar_cos_op EIGEN_EMPTY_STRUCT {
const Scalar operator() (const Scalar& a) const { return ei_cos(a); }
enum { Cost = 5 * NumTraits<Scalar>::MulCost };
};
/** \returns an expression of the coefficient-wise cosine of *this. */
template<typename Derived>
const CwiseUnaryOp<ei_scalar_cos_op<typename ei_traits<Derived>::Scalar>, Derived>
@@ -350,16 +215,6 @@ MatrixBase<Derived>::cwiseCos() const
return CwiseUnaryOp<ei_scalar_cos_op<Scalar>, Derived>(derived());
}
/** \internal
* \brief Template functor to compute the sine of a scalar
*
* \sa class CwiseUnaryOp, MatrixBase::cwiseSin()
*/
template<typename Scalar> struct ei_scalar_sin_op EIGEN_EMPTY_STRUCT {
const Scalar operator() (const Scalar& a) const { return ei_sin(a); }
enum { Cost = 5 * NumTraits<Scalar>::MulCost };
};
/** \returns an expression of the coefficient-wise sine of *this. */
template<typename Derived>
const CwiseUnaryOp<ei_scalar_sin_op<typename ei_traits<Derived>::Scalar>, Derived>
@@ -368,19 +223,6 @@ MatrixBase<Derived>::cwiseSin() const
return CwiseUnaryOp<ei_scalar_sin_op<Scalar>, Derived>(derived());
}
/** \internal
* \brief Template functor to raise a scalar to a power
*
* \sa class CwiseUnaryOp, MatrixBase::cwisePow
*/
template<typename Scalar>
struct ei_scalar_pow_op {
ei_scalar_pow_op(const Scalar& exponent) : m_exponent(exponent) {}
Scalar operator() (const Scalar& a) const { return ei_pow(a, m_exponent); }
const Scalar m_exponent;
enum { Cost = 5 * NumTraits<Scalar>::MulCost };
};
/** \relates MatrixBase */
template<typename Derived>
const CwiseUnaryOp<ei_scalar_pow_op<typename ei_traits<Derived>::Scalar>, Derived>