| /* |
| * $Id: bits.h,v 1.3 2004/07/21 10:10:22 mclark Exp $ |
| * |
| * Copyright Metaparadigm Pte. Ltd. 2004. |
| * Michael Clark <michael@metaparadigm.com> |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public (LGPL) |
| * 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: http://www.gnu.org/ |
| * |
| */ |
| |
| #ifndef _bits_h_ |
| #define _bits_h_ |
| |
| #define min(x,y) ({ \ |
| typeof(x) _x = (x); \ |
| typeof(y) _y = (y); \ |
| (void) (&_x == &_y); \ |
| _x < _y ? _x : _y; }) |
| |
| #define max(x,y) ({ \ |
| typeof(x) _x = (x); \ |
| typeof(y) _y = (y); \ |
| (void) (&_x == &_y); \ |
| _x > _y ? _x : _y; }) |
| |
| #define hexdigit(x) (((x) <= '9') ? (x) - '0' : ((x) & 7) + 9) |
| #define error_ptr(error) ((void*)error) |
| #define is_error(ptr) ((unsigned long)ptr > (unsigned long)-4000L) |
| |
| #endif |