1 /*
2 * Copyright (c) 2011, 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 #if defined(QD_API) && !defined(FLENS_HACKS_QD_TCC)
34 #define FLENS_HACKS_QD_TCC 1
35
36 namespace std {
37
38 //
39 // signbit
40 //
41
42 int
43 signbit(const dd_real &x)
44 {
45 return std::signbit(x.x[0]);
46 }
47
48 int
49 signbit(const qd_real &x)
50 {
51 return std::signbit(x.x[0]);
52 }
53
54 } // namespace std
55
56
57 namespace flens {
58
59 //
60 // dd_real explicit_cast
61 //
62
63 template <>
64 int
65 explicit_cast(const dd_real &from)
66 {
67 return to_int(from);
68 }
69
70 template <>
71 double
72 explicit_cast(const dd_real &from)
73 {
74 return to_double(from);
75 }
76
77 //
78 // qd_real explicit_cast
79 //
80
81 template <>
82 int
83 explicit_cast(const qd_real &from)
84 {
85 return to_int(from);
86 }
87
88 template <>
89 double
90 explicit_cast(const qd_real &from)
91 {
92 return to_double(from);
93 }
94
95 template <>
96 dd_real
97 explicit_cast(const qd_real &from)
98 {
99 return to_dd_real(from);
100 }
101
102 } // namespace flens
103
104 #endif // defined(QD_API) && !defined(FLENS_HACKS_QD_TCC)
2 * Copyright (c) 2011, 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 #if defined(QD_API) && !defined(FLENS_HACKS_QD_TCC)
34 #define FLENS_HACKS_QD_TCC 1
35
36 namespace std {
37
38 //
39 // signbit
40 //
41
42 int
43 signbit(const dd_real &x)
44 {
45 return std::signbit(x.x[0]);
46 }
47
48 int
49 signbit(const qd_real &x)
50 {
51 return std::signbit(x.x[0]);
52 }
53
54 } // namespace std
55
56
57 namespace flens {
58
59 //
60 // dd_real explicit_cast
61 //
62
63 template <>
64 int
65 explicit_cast(const dd_real &from)
66 {
67 return to_int(from);
68 }
69
70 template <>
71 double
72 explicit_cast(const dd_real &from)
73 {
74 return to_double(from);
75 }
76
77 //
78 // qd_real explicit_cast
79 //
80
81 template <>
82 int
83 explicit_cast(const qd_real &from)
84 {
85 return to_int(from);
86 }
87
88 template <>
89 double
90 explicit_cast(const qd_real &from)
91 {
92 return to_double(from);
93 }
94
95 template <>
96 dd_real
97 explicit_cast(const qd_real &from)
98 {
99 return to_dd_real(from);
100 }
101
102 } // namespace flens
103
104 #endif // defined(QD_API) && !defined(FLENS_HACKS_QD_TCC)