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utility.h
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1 /* =============================================================================
2  *
3  * utility.h
4  * -- Collection of utility macros
5  *
6  * =============================================================================
7  *
8  * Copyright (C) Stanford University, 2006. All Rights Reserved.
9  * Author: Chi Cao Minh
10  *
11  * =============================================================================
12  *
13  * For the license of bayes/sort.h and bayes/sort.c, please see the header
14  * of the files.
15  *
16  * ------------------------------------------------------------------------
17  *
18  * For the license of kmeans, please see kmeans/LICENSE.kmeans
19  *
20  * ------------------------------------------------------------------------
21  *
22  * For the license of ssca2, please see ssca2/COPYRIGHT
23  *
24  * ------------------------------------------------------------------------
25  *
26  * For the license of lib/mt19937ar.c and lib/mt19937ar.h, please see the
27  * header of the files.
28  *
29  * ------------------------------------------------------------------------
30  *
31  * For the license of lib/rbtree.h and lib/rbtree.c, please see
32  * lib/LEGALNOTICE.rbtree and lib/LICENSE.rbtree
33  *
34  * ------------------------------------------------------------------------
35  *
36  * Unless otherwise noted, the following license applies to STAMP files:
37  *
38  * Copyright (c) 2007, Stanford University
39  * All rights reserved.
40  *
41  * Redistribution and use in source and binary forms, with or without
42  * modification, are permitted provided that the following conditions are
43  * met:
44  *
45  * * Redistributions of source code must retain the above copyright
46  * notice, this list of conditions and the following disclaimer.
47  *
48  * * Redistributions in binary form must reproduce the above copyright
49  * notice, this list of conditions and the following disclaimer in
50  * the documentation and/or other materials provided with the
51  * distribution.
52  *
53  * * Neither the name of Stanford University nor the names of its
54  * contributors may be used to endorse or promote products derived
55  * from this software without specific prior written permission.
56  *
57  * THIS SOFTWARE IS PROVIDED BY STANFORD UNIVERSITY ``AS IS'' AND ANY
58  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
59  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
60  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL STANFORD UNIVERSITY BE LIABLE
61  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
62  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
63  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
64  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
65  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
66  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
67  * THE POSSIBILITY OF SUCH DAMAGE.
68  *
69  * =============================================================================
70  */
71 
72 
73 #ifndef UTILITY_H
74 #define UTILITY_H
75 
76 
77 #ifdef SIMULATOR
78 # undef MAX
79 # undef MIN
80 #endif
81 
82 
83 #define MAX(a,b) \
84  ({ \
85  __typeof(a) _a = (a); \
86  __typeof(b) _b = (b); \
87  (_a > _b) ? (_a) : (_b); \
88  })
89 
90 #define MIN(a,b) \
91  ({ \
92  __typeof(a) _a = (a); \
93  __typeof(b) _b = (b); \
94  (_a < _b) ? (_a) : (_b); \
95  })
96 
97 #define DIVIDE_AND_ROUND_UP(a,b) \
98  ({ \
99  __typeof(a) _a = (a); \
100  __typeof(b) _b = (b); \
101  (_a / _b) + (((_a % _b) > 0) ? (1) : (0)); \
102  })
103 
104 
105 #endif /* UTILITY_H */
106 
107 
108 /* =============================================================================
109  *
110  * End of utility.h
111  *
112  * =============================================================================
113  */
114