DUNE PDELab (2.8)
A Vector of blocks with different blocksizes. More...
#include <dune/istl/matrix.hh>
Classes | |
class | ConstIterator |
ConstIterator class for sequential access. More... | |
class | Iterator |
Iterator class for sequential access. More... | |
Public Types | |
using | field_type = typename Imp::BlockTraits< B >::field_type |
export the type representing the field | |
typedef A | allocator_type |
export the allocator type | |
typedef A::size_type | size_type |
The size type for the index access. | |
typedef BlockVector< B, A > | value_type |
Type of the elements of the outer vector, i.e., dynamic vectors of B. More... | |
typedef BlockVector< B, A > | block_type |
Same as value_type, here for historical reasons. | |
using | iterator = Iterator |
Export the iterator type using std naming rules. | |
using | const_iterator = ConstIterator |
Export the const iterator type using std naming rules. | |
Public Member Functions | |
DenseMatrixBase () | |
DenseMatrixBase (size_type rows, size_type columns) | |
DenseMatrixBase (const DenseMatrixBase &a) | |
copy constructor, has copy semantics | |
~DenseMatrixBase () | |
free dynamic memory | |
void | resize (size_type rows, size_type columns) |
same effect as constructor with same argument | |
DenseMatrixBase & | operator= (const DenseMatrixBase &a) |
assignment | |
DenseMatrixBase & | operator= (const field_type &k) |
assign from scalar | |
reference | operator[] (size_type i) |
random access to blocks | |
const_reference | operator[] (size_type i) const |
same for read only access | |
Iterator | begin () |
begin Iterator | |
Iterator | end () |
end Iterator | |
Iterator | beforeEnd () |
Iterator | beforeBegin () const |
Iterator | find (size_type i) |
random access returning iterator (end if not contained) | |
ConstIterator | find (size_type i) const |
random access returning iterator (end if not contained) | |
ConstIterator | begin () const |
begin ConstIterator | |
ConstIterator | end () const |
end ConstIterator | |
ConstIterator | beforeEnd () const |
ConstIterator | rend () const |
end ConstIterator | |
size_type | N () const |
number of blocks in the vector (are of variable size here) | |
Detailed Description
class Dune::MatrixImp::DenseMatrixBase< B, A >
A Vector of blocks with different blocksizes.
This class started as a copy of VariableBlockVector, which used to be used for the internal memory managerment of the 'Matrix' class. However, that mechanism stopped working when I started using the RandomAccessIteratorFacade in VariableBlockVector (308dd85483108f8baaa4051251e2c75e2a9aed32, to make VariableBlockVector pass a number of tightened interface compliance tests), and I couldn't quite figure out how to fix that. However, using VariableBlockVector in Matrix internally was a hack anyway, so I simply took the working version of VariableBlockVector and copied it here under the new name of DenseMatrixBase. This is still hacky, but one step closer to an elegant solution.
Member Typedef Documentation
◆ value_type
typedef BlockVector<B,A> Dune::MatrixImp::DenseMatrixBase< B, A >::value_type |
Type of the elements of the outer vector, i.e., dynamic vectors of B.
Note that this is not the type referred to by the iterators and random access operators, which return proxy objects.
Constructor & Destructor Documentation
◆ DenseMatrixBase() [1/2]
|
inline |
constructor without arguments makes empty vector, object cannot be used yet
◆ DenseMatrixBase() [2/2]
|
inline |
make vector with given number of blocks each having a constant size, object is fully usable then.
- Parameters
-
_nblocks Number of blocks m Number of elements in each block
Member Function Documentation
◆ beforeBegin()
|
inline |
- Returns
- an iterator that is positioned before the first entry of the vector.
◆ beforeEnd() [1/2]
|
inline |
- Returns
- an iterator that is positioned before the end iterator of the vector, i.e. at the last entry.
◆ beforeEnd() [2/2]
|
inline |
- Returns
- an iterator that is positioned before the end iterator of the vector. i.e. at the last element.
The documentation for this class was generated from the following file:
- dune/istl/matrix.hh
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