1 /*
2 * Copyright (c) 2010, Michael Lehn
3 *
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1) Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2) Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in
14 * the documentation and/or other materials provided with the
15 * distribution.
16 * 3) Neither the name of the FLENS development group nor the names of
17 * its contributors may be used to endorse or promote products derived
18 * from this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
24 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
25 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
26 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
30 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33 #ifndef FLENS_BLAS_CLOSURES_PRUNEMATRIXCLOSURE_H
34 #define FLENS_BLAS_CLOSURES_PRUNEMATRIXCLOSURE_H 1
35
36 #include <cxxblas/typedefs.h>
37 #include <flens/aux/promotion.h>
38 #include <flens/blas/operators/operators.h>
39 #include <flens/matrixtypes/impl/matrixclosure.h>
40 #include <flens/typedefs.h>
41
42 namespace flens {
43
44 //-- General definition --------------------------------------------------------
45 template <typename Matrix>
46 struct PruneMatrixClosure
47 {
48 typedef int ScalingFactor;
49 typedef Matrix Remainder;
50
51 template <typename ALPHA>
52 static const ALPHA &
53 updateScalingFactor(const ALPHA &alpha, const Matrix &);
54
55 static Transpose
56 updateTranspose(Transpose trans);
57
58 static const Remainder &
59 remainder(const Matrix &matrix);
60 };
61
62 //-- Specialization for particular closures ------------------------------------
63 template <typename L, typename R>
64 struct PruneMatrixClosure<MatrixClosure<OpMult, ScalarValue<L>, R> >;
65
66 template <typename R>
67 struct PruneMatrixClosure<MatrixClosure<OpTrans, R, R> >;
68
69 template <typename R>
70 struct PruneMatrixClosure<MatrixClosure<OpConj, R, R> >;
71
72 } // namespace flens
73
74 #endif // FLENS_BLAS_CLOSURES_PRUNEMATRIXCLOSURE_H
2 * Copyright (c) 2010, Michael Lehn
3 *
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1) Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2) Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in
14 * the documentation and/or other materials provided with the
15 * distribution.
16 * 3) Neither the name of the FLENS development group nor the names of
17 * its contributors may be used to endorse or promote products derived
18 * from this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
24 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
25 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
26 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
30 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33 #ifndef FLENS_BLAS_CLOSURES_PRUNEMATRIXCLOSURE_H
34 #define FLENS_BLAS_CLOSURES_PRUNEMATRIXCLOSURE_H 1
35
36 #include <cxxblas/typedefs.h>
37 #include <flens/aux/promotion.h>
38 #include <flens/blas/operators/operators.h>
39 #include <flens/matrixtypes/impl/matrixclosure.h>
40 #include <flens/typedefs.h>
41
42 namespace flens {
43
44 //-- General definition --------------------------------------------------------
45 template <typename Matrix>
46 struct PruneMatrixClosure
47 {
48 typedef int ScalingFactor;
49 typedef Matrix Remainder;
50
51 template <typename ALPHA>
52 static const ALPHA &
53 updateScalingFactor(const ALPHA &alpha, const Matrix &);
54
55 static Transpose
56 updateTranspose(Transpose trans);
57
58 static const Remainder &
59 remainder(const Matrix &matrix);
60 };
61
62 //-- Specialization for particular closures ------------------------------------
63 template <typename L, typename R>
64 struct PruneMatrixClosure<MatrixClosure<OpMult, ScalarValue<L>, R> >;
65
66 template <typename R>
67 struct PruneMatrixClosure<MatrixClosure<OpTrans, R, R> >;
68
69 template <typename R>
70 struct PruneMatrixClosure<MatrixClosure<OpConj, R, R> >;
71
72 } // namespace flens
73
74 #endif // FLENS_BLAS_CLOSURES_PRUNEMATRIXCLOSURE_H