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* rename XprCopy -> Nested

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* rename OperatorEquals -> Assign
* move Util.h and FwDecl.h to a util/ subdir
This commit is contained in:
Benoit Jacob
2008-04-10 09:01:28 +00:00
parent 212da8ffe0
commit 9d8876ce82
19 changed files with 92 additions and 80 deletions
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40
Eigen/src/Core/Dot.h
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@@ -72,31 +72,31 @@ template<typename OtherDerived>
typename ei_traits<Derived>::Scalar
MatrixBase<Derived>::dot(const MatrixBase<OtherDerived>& other) const
{
typedef typename Derived::XprCopy XprCopy;
typedef typename OtherDerived::XprCopy OtherXprCopy;
typedef typename ei_unref<XprCopy>::type _XprCopy;
typedef typename ei_unref<OtherXprCopy>::type _OtherXprCopy;
XprCopy xprCopy(derived());
OtherXprCopy otherXprCopy(other.derived());
typedef typename Derived::Nested Nested;
typedef typename OtherDerived::Nested OtherNested;
typedef typename ei_unref<Nested>::type _Nested;
typedef typename ei_unref<OtherNested>::type _OtherNested;
Nested nested(derived());
OtherNested otherNested(other.derived());
ei_assert(_XprCopy::IsVectorAtCompileTime
&& _OtherXprCopy::IsVectorAtCompileTime
&& xprCopy.size() == otherXprCopy.size());
ei_assert(_Nested::IsVectorAtCompileTime
&& _OtherNested::IsVectorAtCompileTime
&& nested.size() == otherNested.size());
Scalar res;
const bool unroll = SizeAtCompileTime
* (_XprCopy::CoeffReadCost + _OtherXprCopy::CoeffReadCost + NumTraits<Scalar>::MulCost)
* (_Nested::CoeffReadCost + _OtherNested::CoeffReadCost + NumTraits<Scalar>::MulCost)
+ (SizeAtCompileTime - 1) * NumTraits<Scalar>::AddCost
<= EIGEN_UNROLLING_LIMIT;
if(unroll)
ei_dot_unroller<SizeAtCompileTime-1,
unroll ? SizeAtCompileTime : Dynamic,
_XprCopy, _OtherXprCopy>
::run(xprCopy, otherXprCopy, res);
_Nested, _OtherNested>
::run(nested, otherNested, res);
else
{
res = xprCopy.coeff(0) * ei_conj(otherXprCopy.coeff(0));
res = nested.coeff(0) * ei_conj(otherNested.coeff(0));
for(int i = 1; i < size(); i++)
res += xprCopy.coeff(i)* ei_conj(otherXprCopy.coeff(i));
res += nested.coeff(i)* ei_conj(otherNested.coeff(i));
}
return res;
}
@@ -149,9 +149,9 @@ template<typename OtherDerived>
bool MatrixBase<Derived>::isOrtho
(const MatrixBase<OtherDerived>& other, RealScalar prec) const
{
typename ei_xpr_copy<Derived,2>::type xprCopy(derived());
typename ei_xpr_copy<OtherDerived,2>::type otherXprCopy(other.derived());
return ei_abs2(xprCopy.dot(otherXprCopy)) <= prec * prec * xprCopy.norm2() * otherXprCopy.norm2();
typename ei_nested<Derived,2>::type nested(derived());
typename ei_nested<OtherDerived,2>::type otherNested(other.derived());
return ei_abs2(nested.dot(otherNested)) <= prec * prec * nested.norm2() * otherNested.norm2();
}
/** \returns true if *this is approximately an unitary matrix,
@@ -168,13 +168,13 @@ bool MatrixBase<Derived>::isOrtho
template<typename Derived>
bool MatrixBase<Derived>::isOrtho(RealScalar prec) const
{
typename Derived::XprCopy xprCopy(derived());
typename Derived::Nested nested(derived());
for(int i = 0; i < cols(); i++)
{
if(!ei_isApprox(xprCopy.col(i).norm2(), static_cast<Scalar>(1), prec))
if(!ei_isApprox(nested.col(i).norm2(), static_cast<Scalar>(1), prec))
return false;
for(int j = 0; j < i; j++)
if(!ei_isMuchSmallerThan(xprCopy.col(i).dot(xprCopy.col(j)), static_cast<Scalar>(1), prec))
if(!ei_isMuchSmallerThan(nested.col(i).dot(nested.col(j)), static_cast<Scalar>(1), prec))
return false;
}
return true;