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_SCALAROPERATIONS_COMPLEX_H
34 #define FLENS_SCALAROPERATIONS_COMPLEX_H 1
35
36 #include <cmath>
37 #include <flens/aux/aux.h>
38 #include <flens/scalartypes/impl/scalarclosure.h>
39
40 namespace flens {
41
42 struct ScalarOpComplex {};
43
44 //-- define the result of this operation is complex valued
45 template <typename L, typename R>
46 struct ElementType<ScalarClosure<ScalarOpComplex, L, R> >
47 {
48 typedef typename L::ElementType LT;
49 typedef typename R::ElementType RT;
50 typedef std::complex<typename Promotion<LT, RT>::Type> Type;
51 };
52
53 //-- eval: creates a complex value
54 template <typename L, typename R>
55 const typename ScalarClosure<ScalarOpComplex, L, R>::ElementType
56 evalScalarClosure(const ScalarClosure<ScalarOpComplex, L, R> &exp);
57
58 //-- function overloading
59 template <typename L, typename R>
60 const ScalarClosure<ScalarOpComplex,
61 typename L::Impl,
62 typename R::Impl>
63 Complex(const Scalar<L> &l, const Scalar<R> &r);
64
65 template <typename ALPHA, typename R>
66 const typename
67 RestrictTo<CompatibleScalar<ALPHA, R>::value,
68 ScalarClosure<ScalarOpComplex,
69 ScalarValue<ALPHA>,
70 typename R::Impl>
71 >::Type
72 Complex(const ALPHA &alpha, const Scalar<R> &r);
73
74 template <typename ALPHA, typename L>
75 const typename
76 RestrictTo<CompatibleScalar<ALPHA, L>::value,
77 ScalarClosure<ScalarOpComplex,
78 typename L::Impl,
79 ScalarValue<ALPHA> >
80 >::Type
81 Complex(const Scalar<L> &l, const ALPHA &alpha);
82
83 } // namespace flens
84
85 #endif // FLENS_SCALAROPERATIONS_COMPLEX_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_SCALAROPERATIONS_COMPLEX_H
34 #define FLENS_SCALAROPERATIONS_COMPLEX_H 1
35
36 #include <cmath>
37 #include <flens/aux/aux.h>
38 #include <flens/scalartypes/impl/scalarclosure.h>
39
40 namespace flens {
41
42 struct ScalarOpComplex {};
43
44 //-- define the result of this operation is complex valued
45 template <typename L, typename R>
46 struct ElementType<ScalarClosure<ScalarOpComplex, L, R> >
47 {
48 typedef typename L::ElementType LT;
49 typedef typename R::ElementType RT;
50 typedef std::complex<typename Promotion<LT, RT>::Type> Type;
51 };
52
53 //-- eval: creates a complex value
54 template <typename L, typename R>
55 const typename ScalarClosure<ScalarOpComplex, L, R>::ElementType
56 evalScalarClosure(const ScalarClosure<ScalarOpComplex, L, R> &exp);
57
58 //-- function overloading
59 template <typename L, typename R>
60 const ScalarClosure<ScalarOpComplex,
61 typename L::Impl,
62 typename R::Impl>
63 Complex(const Scalar<L> &l, const Scalar<R> &r);
64
65 template <typename ALPHA, typename R>
66 const typename
67 RestrictTo<CompatibleScalar<ALPHA, R>::value,
68 ScalarClosure<ScalarOpComplex,
69 ScalarValue<ALPHA>,
70 typename R::Impl>
71 >::Type
72 Complex(const ALPHA &alpha, const Scalar<R> &r);
73
74 template <typename ALPHA, typename L>
75 const typename
76 RestrictTo<CompatibleScalar<ALPHA, L>::value,
77 ScalarClosure<ScalarOpComplex,
78 typename L::Impl,
79 ScalarValue<ALPHA> >
80 >::Type
81 Complex(const Scalar<L> &l, const ALPHA &alpha);
82
83 } // namespace flens
84
85 #endif // FLENS_SCALAROPERATIONS_COMPLEX_H