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_AUX_COMPLEX_TCC
34 #define CXXBLAS_AUX_COMPLEX_TCC 1
35
36 #include <complex>
37
38 namespace cxxblas {
39
40 template <typename T>
41 const T &
42 conjugate(const T &x)
43 {
44 return x;
45 }
46
47 template <typename T>
48 std::complex<T>
49 conjugate(const std::complex<T> &x)
50 {
51 return std::conj(x);
52 }
53
54 template <typename T>
55 const T &
56 real(const T &x)
57 {
58 return x;
59 }
60
61 template <typename T>
62 const T
63 real(const std::complex<T> &x)
64 {
65 return std::real(x);
66 }
67
68 template <typename T>
69 const T
70 imag(const T &)
71 {
72 return T(0);
73 }
74
75 template <typename T>
76 const T
77 imag(const std::complex<T> &x)
78 {
79 return std::imag(x);
80 }
81
82 } // namespace cxxblas
83
84 #endif // CXXBLAS_AUX_COMPLEX_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_AUX_COMPLEX_TCC
34 #define CXXBLAS_AUX_COMPLEX_TCC 1
35
36 #include <complex>
37
38 namespace cxxblas {
39
40 template <typename T>
41 const T &
42 conjugate(const T &x)
43 {
44 return x;
45 }
46
47 template <typename T>
48 std::complex<T>
49 conjugate(const std::complex<T> &x)
50 {
51 return std::conj(x);
52 }
53
54 template <typename T>
55 const T &
56 real(const T &x)
57 {
58 return x;
59 }
60
61 template <typename T>
62 const T
63 real(const std::complex<T> &x)
64 {
65 return std::real(x);
66 }
67
68 template <typename T>
69 const T
70 imag(const T &)
71 {
72 return T(0);
73 }
74
75 template <typename T>
76 const T
77 imag(const std::complex<T> &x)
78 {
79 return std::imag(x);
80 }
81
82 } // namespace cxxblas
83
84 #endif // CXXBLAS_AUX_COMPLEX_TCC