cctools
macros.h
1 /*
2 Copyright (C) 2003-2004 Douglas Thain and the University of Wisconsin
3 Copyright (C) 2005- The University of Notre Dame
4 This software is distributed under the GNU General Public License.
5 See the file COPYING for details.
6 */
7 
8 #ifndef MACROS_H
9 #define MACROS_H
10 
11 #ifndef MAX
12 #define MAX(a,b) ( ((a)>(b)) ? (a) : (b) )
13 #endif
14 
15 #ifndef MIN
16 #define MIN(a,b) ( ((a)<(b)) ? (a) : (b) )
17 #endif
18 
19 /* treat negative numbers as 'nulls' */
20 #ifndef MIN_POS
21 #define MIN_POS(a,b) ((a) < 0 ? (b) : ((b) < 0 ? (a) : MIN((a), (b))))
22 #endif
23 
24 #ifndef ABS
25 #define ABS(x) ( ((x)>=0) ? (x) : (-(x)) )
26 #endif
27 
28 #define DIV_INT_ROUND_UP(a, b) (((a) + (b) - 1) / (b))
29 
30 #define KILO 1024
31 #define MEGA (KILO*KILO)
32 #define GIGA (KILO*MEGA)
33 #define TERA (KILO*GIGA)
34 #define PETA (KILO*TERA)
35 
36 #define KILOBYTE KILO
37 #define MEGABYTE MEGA
38 #define GIGABYTE GIGA
39 #define TERABYTE TERA
40 #define PETABYTE PETA
41 
42 #define USECOND 1000000
43 
44 #endif