1 /* $NetBSD: util.h,v 1.1.1.1 2008/12/22 00:18:13 haad Exp $ */ 2 3 /* 4 * Copyright (C) 2007 Red Hat, Inc. All rights reserved. 5 * 6 * This file is part of LVM2. 7 * 8 * This copyrighted material is made available to anyone wishing to use, 9 * modify, copy, or redistribute it subject to the terms and conditions 10 * of the GNU Lesser General Public License v.2.1. 11 * 12 * You should have received a copy of the GNU Lesser General Public License 13 * along with this program; if not, write to the Free Software Foundation, 14 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 15 */ 16 17 #ifndef _LVM_UTIL_H 18 #define _LVM_UTIL_H 19 20 #define min(a, b) ({ typeof(a) _a = (a); \ 21 typeof(b) _b = (b); \ 22 (void) (&_a == &_b); \ 23 _a < _b ? _a : _b; }) 24 25 #define max(a, b) ({ typeof(a) _a = (a); \ 26 typeof(b) _b = (b); \ 27 (void) (&_a == &_b); \ 28 _a > _b ? _a : _b; }) 29 30 #define uninitialized_var(x) x = x 31 32 #endif 33