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(MPFR_REAL_HPP) && !defined(FLENS_HACKS_MPFR_REAL_H)
34 #define FLENS_HACKS_MPFR_REAL_H 1
35
36 #include <limits>
37 #include <flens/aux/explicit_cast.h>
38
39 namespace mpfr {
40
41 //
42 // aux-functions used in numeric_limits
43 //
44
45 template <mpfr::real_prec_t _prec, mpfr::real_rnd_t _rnd>
46 const mpfr::real<_prec,_rnd>
47 nextabove(const mpfr::real<_prec,_rnd> &x);
48
49 template <mpfr::real_prec_t _prec, mpfr::real_rnd_t _rnd>
50 const mpfr::real<_prec,_rnd>
51 get_max();
52
53 } // namespace mpfr
54
55
56 namespace std {
57
58 //
59 // numeric_limits
60 // TODO: This just defines what gets used in FLENS-LAPACK get just copy
61 // the rest from numeric_limits<double>
62 //
63
64 template <mpfr::real_prec_t _prec, mpfr::real_rnd_t _rnd>
65 class numeric_limits<mpfr::real<_prec,_rnd> >
66 : public numeric_limits<double>
67 {
68 public:
69 typedef mpfr::real<_prec,_rnd> T;
70
71 static const T _max;
72 static const T _min;
73 static const T _eps;
74
75 static const T
76 epsilon();
77
78 static const T
79 max();
80
81 static const T
82 min();
83 };
84
85 //
86 // import isnan to namespace std
87 //
88 template <mpfr::real_prec_t _prec, mpfr::real_rnd_t _rnd>
89 bool
90 isnan(const mpfr::real<_prec,_rnd> &x);
91
92 //
93 // import mpfr_real to namespace std
94 //
95 template <mpfr::real_prec_t _prec, mpfr::real_rnd_t _rnd>
96 int
97 signbit(const mpfr::real<_prec,_rnd> &x);
98
99 } // namespace std
100
101 #endif // defined(MPFR_REAL_HPP) && !defined(FLENS_HACKS_MPFR_REAL_H)
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(MPFR_REAL_HPP) && !defined(FLENS_HACKS_MPFR_REAL_H)
34 #define FLENS_HACKS_MPFR_REAL_H 1
35
36 #include <limits>
37 #include <flens/aux/explicit_cast.h>
38
39 namespace mpfr {
40
41 //
42 // aux-functions used in numeric_limits
43 //
44
45 template <mpfr::real_prec_t _prec, mpfr::real_rnd_t _rnd>
46 const mpfr::real<_prec,_rnd>
47 nextabove(const mpfr::real<_prec,_rnd> &x);
48
49 template <mpfr::real_prec_t _prec, mpfr::real_rnd_t _rnd>
50 const mpfr::real<_prec,_rnd>
51 get_max();
52
53 } // namespace mpfr
54
55
56 namespace std {
57
58 //
59 // numeric_limits
60 // TODO: This just defines what gets used in FLENS-LAPACK get just copy
61 // the rest from numeric_limits<double>
62 //
63
64 template <mpfr::real_prec_t _prec, mpfr::real_rnd_t _rnd>
65 class numeric_limits<mpfr::real<_prec,_rnd> >
66 : public numeric_limits<double>
67 {
68 public:
69 typedef mpfr::real<_prec,_rnd> T;
70
71 static const T _max;
72 static const T _min;
73 static const T _eps;
74
75 static const T
76 epsilon();
77
78 static const T
79 max();
80
81 static const T
82 min();
83 };
84
85 //
86 // import isnan to namespace std
87 //
88 template <mpfr::real_prec_t _prec, mpfr::real_rnd_t _rnd>
89 bool
90 isnan(const mpfr::real<_prec,_rnd> &x);
91
92 //
93 // import mpfr_real to namespace std
94 //
95 template <mpfr::real_prec_t _prec, mpfr::real_rnd_t _rnd>
96 int
97 signbit(const mpfr::real<_prec,_rnd> &x);
98
99 } // namespace std
100
101 #endif // defined(MPFR_REAL_HPP) && !defined(FLENS_HACKS_MPFR_REAL_H)