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dekker.one
1/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
2/*
3 * Main authors:
4 * Christian Schulte <schulte@gecode.org>
5 *
6 * Copyright:
7 * Christian Schulte, 2012
8 *
9 * This file is part of Gecode, the generic constraint
10 * development environment:
11 * http://www.gecode.org
12 *
13 * Permission is hereby granted, free of charge, to any person obtaining
14 * a copy of this software and associated documentation files (the
15 * "Software"), to deal in the Software without restriction, including
16 * without limitation the rights to use, copy, modify, merge, publish,
17 * distribute, sublicense, and/or sell copies of the Software, and to
18 * permit persons to whom the Software is furnished to do so, subject to
19 * the following conditions:
20 *
21 * The above copyright notice and this permission notice shall be
22 * included in all copies or substantial portions of the Software.
23 *
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
28 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
29 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
30 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
31 *
32 */
33
34namespace Gecode { namespace Float {
35
36 forceinline
37 Rounding::Rounding(void) {
38 RoundingBase::init();
39 }
40 forceinline
41 Rounding::~Rounding(void) {}
42
43 forceinline FloatNum
44 Rounding::median(FloatNum x, FloatNum y) {
45 return RoundingBase::median(x,y);
46 }
47
48#define GECODE_ROUND_OP(name) \
49 forceinline FloatNum \
50 Rounding::name##_down(FloatNum x, FloatNum y) { \
51 return RoundingBase::name##_down(x,y); \
52 } \
53 forceinline FloatNum \
54 Rounding::name##_up(FloatNum x, FloatNum y) { \
55 return RoundingBase::name##_up(x,y); \
56 }
57
58 GECODE_ROUND_OP(add)
59 GECODE_ROUND_OP(sub)
60 GECODE_ROUND_OP(mul)
61 GECODE_ROUND_OP(div)
62
63#undef GECODE_ROUND_OP
64
65#define GECODE_ROUND_FUN(name) \
66 forceinline FloatNum \
67 Rounding::name##_down(FloatNum x) { \
68 return RoundingBase::name##_down(x); \
69 } \
70 forceinline FloatNum \
71 Rounding::name##_up(FloatNum x) { \
72 return RoundingBase::name##_up(x); \
73 }
74
75 GECODE_ROUND_FUN(sqrt)
76
77#if defined(_M_X64) || defined(_M_IA64)
78
79 // Workaround as MSVC on x64 does not have a rint function
80 forceinline FloatNum
81 Rounding::int_down(FloatNum x) {
82 return floor(x);
83 }
84 forceinline FloatNum
85 Rounding::int_up(FloatNum x) {
86 return ceil(x);
87 }
88
89#else
90
91 GECODE_ROUND_FUN(int)
92
93#endif
94
95#undef GECODE_ROUND_FUN
96
97}}
98
99// STATISTICS: float-var
100