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 CXXBLAS_LEVEL1EXTENSIONS_GESCAL_TCC
34 #define CXXBLAS_LEVEL1EXTENSIONS_GESCAL_TCC 1
35
36 #include <cassert>
37
38 namespace cxxblas {
39
40 template <typename IndexType, typename ALPHA, typename MA>
41 void
42 gescal(StorageOrder order,
43 IndexType m, IndexType n,
44 const ALPHA &alpha, MA *A, IndexType ldA)
45 {
46 CXXBLAS_DEBUG_OUT("gescal_generic");
47
48 if (order==ColMajor) {
49 std::swap(m,n);
50 }
51 if (ldA==n) {
52 scal(m*n, alpha, A, IndexType(1));
53 return;
54 } else {
55 for (IndexType i=0; i<m; ++i) {
56 scal(n, alpha, A+i*ldA, IndexType(1));
57 }
58 return;
59 }
60 assert(0);
61 }
62
63 } // namespace cxxblas
64
65 #endif // CXXBLAS_LEVEL1EXTENSIONS_GESCAL_TCC
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 CXXBLAS_LEVEL1EXTENSIONS_GESCAL_TCC
34 #define CXXBLAS_LEVEL1EXTENSIONS_GESCAL_TCC 1
35
36 #include <cassert>
37
38 namespace cxxblas {
39
40 template <typename IndexType, typename ALPHA, typename MA>
41 void
42 gescal(StorageOrder order,
43 IndexType m, IndexType n,
44 const ALPHA &alpha, MA *A, IndexType ldA)
45 {
46 CXXBLAS_DEBUG_OUT("gescal_generic");
47
48 if (order==ColMajor) {
49 std::swap(m,n);
50 }
51 if (ldA==n) {
52 scal(m*n, alpha, A, IndexType(1));
53 return;
54 } else {
55 for (IndexType i=0; i<m; ++i) {
56 scal(n, alpha, A+i*ldA, IndexType(1));
57 }
58 return;
59 }
60 assert(0);
61 }
62
63 } // namespace cxxblas
64
65 #endif // CXXBLAS_LEVEL1EXTENSIONS_GESCAL_TCC