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agnumpde
dune-matrix-vector
Commits
4ba42061
Commit
4ba42061
authored
10 years ago
by
Max Kahnt
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Remove SingleNonZeroRowMatrix from ComponentWiseMatrixMap.
parent
4f2f7660
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dune/matrix-vector/componentwisematrixmap.hh
+1
-124
1 addition, 124 deletions
dune/matrix-vector/componentwisematrixmap.hh
with
1 addition
and
124 deletions
dune/matrix-vector/componentwisematrixmap.hh
+
1
−
124
View file @
4ba42061
...
...
@@ -9,130 +9,7 @@
#include
<dune/fufem/arithmetic.hh>
#include
<dune/fufem/indexedsliceiterator.hh>
#include
<dune/matrix-vector/singlenonzerocolumnmatrix.hh>
/**
* \brief A static matrix that has only a single nonzero row
*
* The number and values of this row are dynamic.
* For simplicity this derives from FieldMatrix and sets
* all entries accordingly. So it will not reduce memory
* requirements but allows to implement methods more efficiently.
*/
template
<
class
K
,
int
ROWS
,
int
COLS
>
class
SingleNonZeroRowMatrix
{
public:
typedef
typename
Dune
::
FieldMatrix
<
K
,
1
,
COLS
>
SingleRowMatrix
;
protected:
class
RowProxy
{
public:
typedef
std
::
size_t
size_type
;
typedef
typename
SingleRowMatrix
::
ConstColIterator
ConstIterator
;
typedef
ConstIterator
const_iterator
;
RowProxy
(
const
SingleRowMatrix
*
nzRow
,
size_type
rowIndex
,
size_type
nzRowIndex
)
:
nzRow_
(
nzRow
),
isNonZero_
(
rowIndex
==
nzRowIndex
)
{}
ConstIterator
begin
()
const
{
if
(
isNonZero_
)
return
(
*
nzRow_
)[
0
].
begin
();
else
return
(
*
nzRow_
)[
0
].
end
();
}
ConstIterator
end
()
const
{
return
(
*
nzRow_
)[
0
].
end
();
}
protected
:
const
SingleRowMatrix
*
nzRow_
;
bool
isNonZero_
;
};
public
:
enum
{
rows
=
ROWS
,
cols
=
COLS
};
typedef
RowProxy
row_type
;
typedef
row_type
const_row_reference
;
typedef
typename
std
::
size_t
size_type
;
typedef
typename
RowProxy
::
ConstIterator
ConstColIterator
;
/**
* \brief Create from single row matrix and row index
*/
SingleNonZeroRowMatrix
(
const
SingleRowMatrix
&
r
,
size_type
nzRowIndex
)
:
nzRow_
(
r
),
nzRowIndex_
(
nzRowIndex
)
{}
size_type
N
()
const
{
return
ROWS
;
}
size_type
M
()
const
{
return
COLS
;
}
template
<
class
X
,
class
Y
>
void
umv
(
const
X
&
x
,
Y
&
y
)
const
{
for
(
size_type
i
=
0
;
i
<
M
();
++
i
)
y
[
nzRowIndex_
]
+=
nzRow_
[
0
][
i
]
*
x
[
i
];
}
template
<
class
X
,
class
Y
>
void
umtv
(
const
X
&
x
,
Y
&
y
)
const
{
for
(
size_type
i
=
0
;
i
<
N
();
++
i
)
y
[
i
]
=
nzRow_
[
0
][
i
]
*
x
[
nzRowIndex_
];
}
template
<
class
X
,
class
Y
>
void
mtv
(
const
X
&
x
,
Y
&
y
)
const
{
y
=
0.0
;
umtv
(
x
,
y
);
}
const_row_reference
operator
[]
(
size_type
rowIndex
)
const
{
return
const_row_reference
(
&
nzRow_
,
rowIndex
,
nzRowIndex_
);
}
size_type
nonZeroRowIndex
()
const
{
return
nzRowIndex_
;
}
protected
:
SingleRowMatrix
nzRow_
;
const
size_type
nzRowIndex_
;
};
namespace
Arithmetic
{
template
<
class
K
,
int
ROWS
,
int
COLS
>
struct
MatrixTraits
<
SingleNonZeroRowMatrix
<
K
,
ROWS
,
COLS
>
>
{
enum
{
isMatrix
=
true
};
enum
{
isDense
=
false
};
enum
{
hasStaticSize
=
true
};
enum
{
rows
=
ROWS
};
enum
{
cols
=
COLS
};
};
};
#include
<dune/matrix-vector/singlenonzerorowmatrix.hh>
template
<
class
K
,
int
ROWS
,
int
COLS
>
class
ComponentWiseMatrixMap
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