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Doc: explain how to free allocated memory in SparseMAtrix

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Gael Guennebaud 2015-02-16 15:56:11 +01:00
parent 98604576d1
commit 953d5ccfd5
1 changed files with 11 additions and 1 deletions
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12
Eigen/src/SparseCore/SparseMatrix.h
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@ -243,7 +243,13 @@ class SparseMatrix
public: public:
/** Removes all non zeros but keep allocated memory */ /** Removes all non zeros but keep allocated memory
*
* This function does not free the currently allocated memory. To release as much as memory as possible,
* call \code mat.data().squeeze(); \endcode after resizing it.
*
* \sa resize(Index,Index), data()
*/
inline void setZero() inline void setZero()
{ {
m_data.clear(); m_data.clear();
@ -601,6 +607,10 @@ class SparseMatrix
} }
/** Resizes the matrix to a \a rows x \a cols matrix and initializes it to zero. /** Resizes the matrix to a \a rows x \a cols matrix and initializes it to zero.
*
* This function does not free the currently allocated memory. To release as much as memory as possible,
* call \code mat.data().squeeze(); \endcode after resizing it.
*
* \sa resizeNonZeros(Index), reserve(), setZero() * \sa resizeNonZeros(Index), reserve(), setZero()
*/ */
void resize(Index rows, Index cols) void resize(Index rows, Index cols)