1 | /* |
2 | * LibXDiff by Davide Libenzi ( File Differential Library ) |
3 | * Copyright (C) 2003 Davide Libenzi |
4 | * |
5 | * This library is free software; you can redistribute it and/or |
6 | * modify it under the terms of the GNU Lesser General Public |
7 | * License as published by the Free Software Foundation; either |
8 | * version 2.1 of the License, or (at your option) any later version. |
9 | * |
10 | * This library is distributed in the hope that it will be useful, |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | * Lesser General Public License for more details. |
14 | * |
15 | * You should have received a copy of the GNU Lesser General Public |
16 | * License along with this library; if not, see |
17 | * <http://www.gnu.org/licenses/>. |
18 | * |
19 | * Davide Libenzi <davidel@xmailserver.org> |
20 | * |
21 | */ |
22 | |
23 | #if !defined(XMACROS_H) |
24 | #define XMACROS_H |
25 | |
26 | |
27 | |
28 | |
29 | #define XDL_MIN(a, b) ((a) < (b) ? (a): (b)) |
30 | #define XDL_MAX(a, b) ((a) > (b) ? (a): (b)) |
31 | #define XDL_ABS(v) ((v) >= 0 ? (v): -(v)) |
32 | #define XDL_ISDIGIT(c) ((c) >= '0' && (c) <= '9') |
33 | #define XDL_ISSPACE(c) (isspace((unsigned char)(c))) |
34 | #define XDL_ADDBITS(v,b) ((v) + ((v) >> (b))) |
35 | #define XDL_MASKBITS(b) ((1UL << (b)) - 1) |
36 | #define XDL_HASHLONG(v,b) (XDL_ADDBITS((unsigned long)(v), b) & XDL_MASKBITS(b)) |
37 | #define XDL_PTRFREE(p) do { if (p) { xdl_free(p); (p) = NULL; } } while (0) |
38 | #define XDL_LE32_PUT(p, v) \ |
39 | do { \ |
40 | unsigned char *__p = (unsigned char *) (p); \ |
41 | *__p++ = (unsigned char) (v); \ |
42 | *__p++ = (unsigned char) ((v) >> 8); \ |
43 | *__p++ = (unsigned char) ((v) >> 16); \ |
44 | *__p = (unsigned char) ((v) >> 24); \ |
45 | } while (0) |
46 | #define XDL_LE32_GET(p, v) \ |
47 | do { \ |
48 | unsigned char const *__p = (unsigned char const *) (p); \ |
49 | (v) = (unsigned long) __p[0] | ((unsigned long) __p[1]) << 8 | \ |
50 | ((unsigned long) __p[2]) << 16 | ((unsigned long) __p[3]) << 24; \ |
51 | } while (0) |
52 | |
53 | |
54 | #endif /* #if !defined(XMACROS_H) */ |
55 | |