projects / thirdparty / git.git / blame
| Commit | Line | Data |
|---|---|---|
| 3443546f LT |
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, write to the Free Software | |
| 17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 18 | * | |
| 19 | * Davide Libenzi <davidel@xmailserver.org> | |
| 20 | * | |
| 21 | */ | |
| 22 | ||
| 23 | #if !defined(XMACROS_H) | |
| 24 | #define XMACROS_H | |
| 25 | ||
| 26 | ||
| 27 | #define GR_PRIME 0x9e370001UL | |
| 28 | ||
| 29 | ||
| 30 | #define XDL_MIN(a, b) ((a) < (b) ? (a): (b)) | |
| 31 | #define XDL_MAX(a, b) ((a) > (b) ? (a): (b)) | |
| 32 | #define XDL_ABS(v) ((v) >= 0 ? (v): -(v)) | |
| 33 | #define XDL_ISDIGIT(c) ((c) >= '0' && (c) <= '9') | |
| 34 | #define XDL_HASHLONG(v, b) (((unsigned long)(v) * GR_PRIME) >> ((CHAR_BIT * sizeof(unsigned long)) - (b))) | |
| 35 | #define XDL_PTRFREE(p) do { if (p) { xdl_free(p); (p) = NULL; } } while (0) | |
| 36 | #define XDL_LE32_PUT(p, v) \ | |
| 37 | do { \ | |
| 38 | unsigned char *__p = (unsigned char *) (p); \ | |
| 39 | *__p++ = (unsigned char) (v); \ | |
| 40 | *__p++ = (unsigned char) ((v) >> 8); \ | |
| 41 | *__p++ = (unsigned char) ((v) >> 16); \ | |
| 42 | *__p = (unsigned char) ((v) >> 24); \ | |
| 43 | } while (0) | |
| 44 | #define XDL_LE32_GET(p, v) \ | |
| 45 | do { \ | |
| 46 | unsigned char const *__p = (unsigned char const *) (p); \ | |
| 47 | (v) = (unsigned long) __p[0] | ((unsigned long) __p[1]) << 8 | \ | |
| 48 | ((unsigned long) __p[2]) << 16 | ((unsigned long) __p[3]) << 24; \ | |
| 49 | } while (0) | |
| 50 | ||
| 51 | ||
| 52 | #endif /* #if !defined(XMACROS_H) */ | |
| 53 |