Access proxy for lower unitriangular matrices.The UniLowerProxy provides controlled access to the elements of a non-const lower unitriangular matrix. It guarantees that the unilower matrix invariant is not violated, i.e. that elements in the upper part of the matrix remain 0 and the diagonal elements remain 1. The following example illustrates this by means of a
dense lower unitriangular matrix:
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#include <UniLowerProxy.h>
Inherits blaze::Proxy< UniLowerProxy< MT >, MT::ElementType >.
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typedef AddConst< typename MT::Reference >::Type | ReferenceType |
| Reference type of the underlying matrix type.
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template<typename MT>
class blaze::UniLowerProxy< MT >
Access proxy for lower unitriangular matrices.
The UniLowerProxy provides controlled access to the elements of a non-const lower unitriangular matrix. It guarantees that the unilower matrix invariant is not violated, i.e. that elements in the upper part of the matrix remain 0 and the diagonal elements remain 1. The following example illustrates this by means of a
dense lower unitriangular matrix:
A(0,1) = -2;
A(2,1) = 3;
A(2,2) = 5;
A(1,1) = 4;
A(0,2) = 7;
Initialization constructor for an UniLowerProxy.
- Parameters
-
matrix | Reference to the adapted matrix. |
row | The row-index of the accessed matrix element. |
column | The column-index of the accessed matrix element. |
Returns the column index of the represented matrix element.
- Returns
- The column index of the represented matrix element.
Returning the value of the accessed matrix element.
- Returns
- Direct/raw reference to the accessed matrix element.
Returns whether the proxy represents a restricted matrix element..
- Returns
- true in case access to the matrix element is restricted, false if not.
Conversion to the accessed matrix element.
- Returns
- Direct/raw reference to the accessed matrix element.
template<typename MT>
template<typename T >
Multiplication assignment to the accessed matrix element.
- Parameters
-
value | The right-hand side value for the multiplication. |
- Returns
- Reference to the assigned proxy.
- Exceptions
-
std::invalid_argument | Invalid assignment to diagonal or upper matrix element. |
In case the proxy represents an element on the diagonal or in the upper part of the matrix, a std::invalid_argument exception is thrown.
template<typename MT>
template<typename T >
Addition assignment to the accessed matrix element.
- Parameters
-
value | The right-hand side value to be added to the matrix element. |
- Returns
- Reference to the assigned proxy.
- Exceptions
-
std::invalid_argument | Invalid assignment to diagonal or upper matrix element. |
In case the proxy represents an element on the diagonal or in the upper part of the matrix, a std::invalid_argument exception is thrown.
template<typename MT>
template<typename T >
Subtraction assignment to the accessed matrix element.
- Parameters
-
value | The right-hand side value to be subtracted from the matrix element. |
- Returns
- Reference to the assigned proxy.
- Exceptions
-
std::invalid_argument | Invalid assignment to diagonal or upper matrix element. |
In case the proxy represents an element on the diagonal or in the upper part of the matrix, a std::invalid_argument exception is thrown.
template<typename MT>
template<typename T >
Division assignment to the accessed matrix element.
- Parameters
-
value | The right-hand side value for the division. |
- Returns
- Reference to the assigned proxy.
- Exceptions
-
std::invalid_argument | Invalid assignment to diagonal or upper matrix element. |
In case the proxy represents an element on the diagonal or in the upper part of the matrix, a std::invalid_argument exception is thrown.
Copy assignment operator for UniLowerProxy.
- Parameters
-
- Returns
- Reference to the assigned proxy.
template<typename MT>
template<typename T >
Assignment to the accessed matrix element.
- Parameters
-
value | The new value of the matrix element. |
- Returns
- Reference to the assigned proxy.
- Exceptions
-
std::invalid_argument | Invalid assignment to diagonal or upper matrix element. |
In case the proxy represents an element on the diagonal or in the upper part of the matrix, a std::invalid_argument exception is thrown.
Returns the row index of the represented matrix element.
- Returns
- The row index of the represented matrix element.
The documentation for this class was generated from the following file: