1 /*
2 * Copyright (c) 2009, 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_LEVEL1_ASUM_TCC
34 #define CXXBLAS_LEVEL1_ASUM_TCC 1
35
36 #include <cmath>
37
38
39 namespace cxxblas {
40
41 template <typename IndexType, typename X, typename T>
42 void
43 asum_generic(IndexType n, const X *x, IndexType incX, T &absSum)
44 {
45 CXXBLAS_DEBUG_OUT("[ asum_generic");
46
47 using std::abs;
48
49 absSum = 0;
50 for (IndexType i=0; i<n; ++i, x+=incX) {
51 absSum += abs(cxxblas::real(*x)) + abs(cxxblas::imag(*x));
52 }
53 }
54
55 template <typename IndexType, typename X, typename T>
56 void
57 asum(IndexType n, const X *x, IndexType incX, T &absSum)
58 {
59 if (incX<0) {
60 x -= incX*(n-1);
61 }
62 asum_generic(n, x, incX, absSum);
63 }
64
65 #ifdef HAVE_CBLAS
66 // sasum
67 template <typename IndexType>
68 typename If<IndexType>::isBlasCompatibleInteger
69 asum(IndexType n, const float *x, IndexType incX, float &absSum)
70 {
71 CXXBLAS_DEBUG_OUT("[" BLAS_IMPL "] cblas_sasum");
72
73 absSum = cblas_sasum(n, x, incX);
74 }
75
76 // dasum
77 template <typename IndexType>
78 typename If<IndexType>::isBlasCompatibleInteger
79 asum(IndexType n, const double *x, IndexType incX, double &absSum)
80 {
81 CXXBLAS_DEBUG_OUT("[" BLAS_IMPL "] cblas_dasum");
82
83 absSum = cblas_dasum(n, x, incX);
84 }
85
86 // scasum
87 template <typename IndexType>
88 typename If<IndexType>::isBlasCompatibleInteger
89 asum(IndexType n, const ComplexFloat *x, IndexType incX, float &absSum)
90 {
91 CXXBLAS_DEBUG_OUT("[" BLAS_IMPL "] cblas_scasum");
92
93 absSum = cblas_scasum(n, x, incX);
94 }
95
96 // dzasum
97 template <typename IndexType>
98 typename If<IndexType>::isBlasCompatibleInteger
99 asum(IndexType n, const ComplexDouble *x, IndexType incX, double &absSum)
100 {
101 CXXBLAS_DEBUG_OUT("[" BLAS_IMPL "] cblas_dzasum");
102
103 absSum = cblas_dzasum(n, x, incX);
104 }
105
106 #endif // HAVE_CBLAS
107
108 } // namespace cxxblas
109
110 #endif // CXXBLAS_LEVEL1_ASUM_TCC
2 * Copyright (c) 2009, 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_LEVEL1_ASUM_TCC
34 #define CXXBLAS_LEVEL1_ASUM_TCC 1
35
36 #include <cmath>
37
38
39 namespace cxxblas {
40
41 template <typename IndexType, typename X, typename T>
42 void
43 asum_generic(IndexType n, const X *x, IndexType incX, T &absSum)
44 {
45 CXXBLAS_DEBUG_OUT("[ asum_generic");
46
47 using std::abs;
48
49 absSum = 0;
50 for (IndexType i=0; i<n; ++i, x+=incX) {
51 absSum += abs(cxxblas::real(*x)) + abs(cxxblas::imag(*x));
52 }
53 }
54
55 template <typename IndexType, typename X, typename T>
56 void
57 asum(IndexType n, const X *x, IndexType incX, T &absSum)
58 {
59 if (incX<0) {
60 x -= incX*(n-1);
61 }
62 asum_generic(n, x, incX, absSum);
63 }
64
65 #ifdef HAVE_CBLAS
66 // sasum
67 template <typename IndexType>
68 typename If<IndexType>::isBlasCompatibleInteger
69 asum(IndexType n, const float *x, IndexType incX, float &absSum)
70 {
71 CXXBLAS_DEBUG_OUT("[" BLAS_IMPL "] cblas_sasum");
72
73 absSum = cblas_sasum(n, x, incX);
74 }
75
76 // dasum
77 template <typename IndexType>
78 typename If<IndexType>::isBlasCompatibleInteger
79 asum(IndexType n, const double *x, IndexType incX, double &absSum)
80 {
81 CXXBLAS_DEBUG_OUT("[" BLAS_IMPL "] cblas_dasum");
82
83 absSum = cblas_dasum(n, x, incX);
84 }
85
86 // scasum
87 template <typename IndexType>
88 typename If<IndexType>::isBlasCompatibleInteger
89 asum(IndexType n, const ComplexFloat *x, IndexType incX, float &absSum)
90 {
91 CXXBLAS_DEBUG_OUT("[" BLAS_IMPL "] cblas_scasum");
92
93 absSum = cblas_scasum(n, x, incX);
94 }
95
96 // dzasum
97 template <typename IndexType>
98 typename If<IndexType>::isBlasCompatibleInteger
99 asum(IndexType n, const ComplexDouble *x, IndexType incX, double &absSum)
100 {
101 CXXBLAS_DEBUG_OUT("[" BLAS_IMPL "] cblas_dzasum");
102
103 absSum = cblas_dzasum(n, x, incX);
104 }
105
106 #endif // HAVE_CBLAS
107
108 } // namespace cxxblas
109
110 #endif // CXXBLAS_LEVEL1_ASUM_TCC