| /* |
| * LibXDiff by Davide Libenzi ( File Differential Library ) |
| * Copyright (C) 2003 Davide Libenzi |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library; if not, see |
| * <http://www.gnu.org/licenses/>. |
| * |
| * Davide Libenzi <davidel@xmailserver.org> |
| * |
| */ |
| |
| #if !defined(XMACROS_H) |
| #define XMACROS_H |
| |
| |
| |
| |
| #define XDL_MIN(a, b) ((a) < (b) ? (a): (b)) |
| #define XDL_MAX(a, b) ((a) > (b) ? (a): (b)) |
| #define XDL_ABS(v) ((v) >= 0 ? (v): -(v)) |
| #define XDL_ISDIGIT(c) ((c) >= '0' && (c) <= '9') |
| #define XDL_ISSPACE(c) (isspace((unsigned char)(c))) |
| #define XDL_ADDBITS(v,b) ((v) + ((v) >> (b))) |
| #define XDL_MASKBITS(b) ((1UL << (b)) - 1) |
| #define XDL_HASHLONG(v,b) (XDL_ADDBITS((unsigned long)(v), b) & XDL_MASKBITS(b)) |
| #define XDL_LE32_PUT(p, v) \ |
| do { \ |
| unsigned char *__p = (unsigned char *) (p); \ |
| *__p++ = (unsigned char) (v); \ |
| *__p++ = (unsigned char) ((v) >> 8); \ |
| *__p++ = (unsigned char) ((v) >> 16); \ |
| *__p = (unsigned char) ((v) >> 24); \ |
| } while (0) |
| #define XDL_LE32_GET(p, v) \ |
| do { \ |
| unsigned char const *__p = (unsigned char const *) (p); \ |
| (v) = (unsigned long) __p[0] | ((unsigned long) __p[1]) << 8 | \ |
| ((unsigned long) __p[2]) << 16 | ((unsigned long) __p[3]) << 24; \ |
| } while (0) |
| |
| |
| #endif /* #if !defined(XMACROS_H) */ |