1 /* 2 File: dcg_arith.h 3 Defines some arithmetic support 4 5 Copyright (C) 2008 Marc Seutter 6 7 This library is free software: you can redistribute it and/or modify 8 it under the terms of the GNU Lesser General Public License as published 9 by the Free Software Foundation, either version 3 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU Lesser General Public License 18 along with this library. If not, see <http://www.gnu.org/licenses/>. 19 20 CVS ID: "$Id: dcg_arith.h,v 1.8 2008/06/28 13:41:17 marcs Exp $" 21 */ 22 #ifndef IncDcgArith 23 #define IncDcgArith 24 25 /* include math */ 26 #include <math.h> 27 28 /* exclude min and max for WIN32 */ 29 #ifndef WIN32 30 #define max(a,b) (((a)<(b))?(b):(a)) 31 #define min(a,b) (((a)>(b))?(b):(a)) 32 #endif 33 34 #define odd(a) ((a)&1) 35 #define even(a) (!((a)&1)) 36 #define iabs(a) (((a)<0)?(-(a)):(a)) 37 #define rabs(a) (((a)<0.0)?(-(a)):(a)) 38 39 #define power10(x) pow(10.0, ((real) x)) 40 #define ipower2(a) (1<<(a)) 41 #define ipower10(a) (ipower(10,a)); 42 43 int ilog2 (int nr); 44 int ilog10 (int nr); 45 int ipower (int nr, int exp); 46 int imod (int l, int r); 47 int irem (int l, int r); 48 49 #endif /* IncDcgArith */ 50