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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, 2004
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
34/// Concatenate \a R and \a LINE
35#define GECODE_CAT2(R,LINE) R ## LINE
36/// Concatenate macro-expanded \a R and \a LINE
37#define GECODE_CAT(R,LINE) GECODE_CAT2(R,LINE)
38/// Generate fresh name with prefix P
39#define GECODE_FRESH(P) GECODE_CAT(GECODE_ ## P, __LINE__)
40
41/**
42 * \def GECODE_NEVER
43 * \brief Assert that this command is never executed
44 *
45 * This is preferred over assert(false) as it is used for optimization,
46 * if supported by a compiler (for example, Microsoft Visual C++).
47 *
48 */
49
50#if defined(_MSC_VER) && defined(NDEBUG)
51
52#define GECODE_NEVER __assume(false)
53
54#else
55
56#define GECODE_NEVER assert(false)
57
58#endif
59
60/**
61 * \def GECODE_NOT_NULL
62 * \brief Assert that a pointer is never nullptr
63 *
64 * This is preferred over assert as it is used for optimization,
65 * if supported by a compiler (for example, Microsoft Visual C++).
66 *
67 */
68
69#if defined(_MSC_VER) && defined(NDEBUG)
70
71#define GECODE_NOT_NULL(p) __assume(p != nullptr)
72
73#else
74
75#define GECODE_NOT_NULL(p) assert(p != nullptr)
76
77#endif
78
79/**
80 * \def GECODE_VALID_FUNCTION
81 * \brief Assert that a function is valid
82 *
83 * This is preferred over assert as it is used for optimization,
84 * if supported by a compiler (for example, Microsoft Visual C++).
85 *
86 */
87
88#if defined(_MSC_VER) && defined(NDEBUG)
89
90#define GECODE_VALID_FUNCTION(f) __assume(static_cast<bool>(f))
91
92#else
93
94#define GECODE_VALID_FUNCTION(f) assert(static_cast<bool>(f))
95
96#endif
97
98/**
99 * \def GECODE_ASSUME
100 * \brief Assert certain property
101 *
102 * This might be used for optimization as well (for example,
103 * Microsoft Visual C++), otherwise it behaves like any
104 * assert.
105 *
106 */
107
108#if defined(_MSC_VER) && defined(NDEBUG)
109
110#define GECODE_ASSUME(p) __assume((p))
111
112#else
113
114#define GECODE_ASSUME(p) assert((p))
115
116#endif
117
118// STATISTICS: support-any