# Ipopt::GenTMatrixSpace Class Reference

This is the matrix space for a GenTMatrix with fixed sparsity structure. More...

`#include <IpGenTMatrix.hpp>`

Inheritance diagram for Ipopt::GenTMatrixSpace:
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List of all members.

## Public Member Functions
GenTMatrix * | MakeNewGenTMatrix () const
| Method for creating a new matrix of this specific type.
virtual Matrix * | MakeNew () const
| Overloaded MakeNew method for the MatrixSpace base class.
Constructors / Destructors
| GenTMatrixSpace (Index nRows, Index nCols, Index nonZeros, const Index *iRows, const Index *jCols)
| Constructor, given the number of rows and columns, as well as the number of nonzeros and the position of the nonzero elements.
| ~GenTMatrixSpace ()
| Destructor.
Methods describing Matrix structure
Index | Nonzeros () const
| Number of non-zeros in the sparse matrix.
const Index * | Irows () const
| Row index of each non-zero element (counting starts at 1).
const Index * | Jcols () const
| Column index of each non-zero element (counting starts at 1).
## Private Member Functions
Number * | AllocateInternalStorage () const
| This method is only for the GenTMatrix to call in order to allocate internal storage.
void | FreeInternalStorage (Number *values) const
| This method is only for the GenTMatrix to call in order to de-allocate internal storage.
## Private Attributes
Sparsity structure of matrices generated by this matrix
space.
const Index | nonZeros_
Index * | jCols_
Index * | iRows_
## Friends
class | GenTMatrix

## Detailed Description

This is the matrix space for a GenTMatrix with fixed sparsity structure.

The sparsity structure is stored here in the matrix space.

Definition at line 164 of file IpGenTMatrix.hpp.

## Constructor & Destructor Documentation

Ipopt::GenTMatrixSpace::GenTMatrixSpace | ( | Index | nRows,
|  | Index | nCols,
|  | Index | nonZeros,
|  | const Index * | iRows,
|  | const Index * | jCols |
| ) |  |  |

Constructor, given the number of rows and columns, as well as the number of nonzeros and the position of the nonzero elements.

Note that the counting of the nonzeros starts a 1, i.e., iRows[i]==1 and jCols[i]==1 refers to the first element in the first row. This is in accordance with the HSL data structure.

Ipopt::GenTMatrixSpace::~GenTMatrixSpace | ( |  | ) | `[inline]`

Destructor.

Definition at line 181 of file IpGenTMatrix.hpp.

## Member Function Documentation

GenTMatrix* Ipopt::GenTMatrixSpace::MakeNewGenTMatrix | ( |  | ) | const`[inline]`

Method for creating a new matrix of this specific type.

Definition at line 189 of file IpGenTMatrix.hpp.

virtual Matrix* Ipopt::GenTMatrixSpace::MakeNew | ( |  | ) | const`[inline, virtual]`

Overloaded MakeNew method for the MatrixSpace base class.

Implements Ipopt::MatrixSpace.

Definition at line 196 of file IpGenTMatrix.hpp.

Index Ipopt::GenTMatrixSpace::Nonzeros | ( |  | ) | const`[inline]`

Number of non-zeros in the sparse matrix.

Definition at line 204 of file IpGenTMatrix.hpp.

const Index* Ipopt::GenTMatrixSpace::Irows | ( |  | ) | const`[inline]`

Row index of each non-zero element (counting starts at 1).

Definition at line 210 of file IpGenTMatrix.hpp.

const Index* Ipopt::GenTMatrixSpace::Jcols | ( |  | ) | const`[inline]`

Column index of each non-zero element (counting starts at 1).

Definition at line 216 of file IpGenTMatrix.hpp.

Number* Ipopt::GenTMatrixSpace::AllocateInternalStorage | ( |  | ) | const`[private]`

This method is only for the GenTMatrix to call in order to allocate internal storage.

void Ipopt::GenTMatrixSpace::FreeInternalStorage | ( | Number * | values | ) | const`[private]`

This method is only for the GenTMatrix to call in order to de-allocate internal storage.

## Friends And Related Function Documentation

friend class GenTMatrix`[friend]`

Definition at line 240 of file IpGenTMatrix.hpp.

## Member Data Documentation

const Index Ipopt::GenTMatrixSpace::nonZeros_`[private]`

Definition at line 227 of file IpGenTMatrix.hpp.

Index* Ipopt::GenTMatrixSpace::jCols_`[private]`

Definition at line 228 of file IpGenTMatrix.hpp.

Index* Ipopt::GenTMatrixSpace::iRows_`[private]`

Definition at line 229 of file IpGenTMatrix.hpp.

The documentation for this class was generated from the following file:

- src/LinAlg/TMatrices/IpGenTMatrix.hpp

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