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* added an in-place version of inverseProduct which

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might be twice faster fot small fixed size matrix
* added a sparse triangular solver (sparse version
  of inverseProduct)
* various other improvements in the Sparse module
This commit is contained in:
Gael Guennebaud
2008-06-29 21:29:12 +00:00
parent fbdecf09e1
commit 37a50fa526
12 changed files with 582 additions and 209 deletions
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20
Eigen/src/Sparse/SparseMatrixBase.h
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@@ -43,19 +43,16 @@ class SparseMatrixBase : public MatrixBase<Derived>
{ return *static_cast<Derived*>(const_cast<SparseMatrixBase*>(this)); }
SparseMatrixBase()
: m_isRValue(false), m_hasBeenCopied(false)
: m_isRValue(false)
{}
bool isRValue() const { return m_isRValue; }
Derived& temporary() { m_isRValue = true; return derived(); }
Derived& markAsRValue() { m_isRValue = true; return derived(); }
inline Derived& operator=(const Derived& other)
{
if (other.isRValue())
{
m_hasBeenCopied = true;
derived().shallowCopy(other);
}
derived().swap(other.const_cast_derived());
else
this->operator=<Derived>(other);
return derived();
@@ -82,7 +79,7 @@ class SparseMatrixBase : public MatrixBase<Derived>
}
temp.endFill();
derived() = temp.temporary();
derived() = temp.markAsRValue();
return derived();
}
@@ -119,7 +116,6 @@ class SparseMatrixBase : public MatrixBase<Derived>
friend std::ostream & operator << (std::ostream & s, const SparseMatrixBase& m)
{
if (Flags&RowMajorBit)
{
for (int row=0; row<m.outerSize(); ++row)
@@ -130,6 +126,7 @@ class SparseMatrixBase : public MatrixBase<Derived>
for ( ; col<it.index(); ++col)
s << "0 ";
std::cout << it.value() << " ";
++col;
}
for ( ; col<m.cols(); ++col)
s << "0 ";
@@ -144,15 +141,12 @@ class SparseMatrixBase : public MatrixBase<Derived>
return s;
}
protected:
bool isNotShared() { return !m_hasBeenCopied; }
void markAsCopied() const { m_hasBeenCopied = true; }
template<typename OtherDerived>
OtherDerived inverseProduct(const MatrixBase<OtherDerived>& other) const;
protected:
bool m_isRValue;
mutable bool m_hasBeenCopied;
};
#endif // EIGEN_SPARSEMATRIXBASE_H