00001 /* 00002 util.h - utilities 00003 00004 Copyright (C) 2011 Hugo Perquin - http://blog.perquin.com 00005 00006 This program is free software; you can redistribute it and/or modify 00007 it under the terms of the GNU General Public License as published by 00008 the Free Software Foundation; either version 2 of the License, or 00009 (at your option) any later version. 00010 00011 This program is distributed in the hope that it will be useful, 00012 but WITHOUT ANY WARRANTY; without even the implied warranty of 00013 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00014 GNU General Public License for more details. 00015 00016 You should have received a copy of the GNU General Public License 00017 along with this program; if not, write to the Free Software 00018 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, 00019 MA 02110-1301 USA. 00020 */ 00021 #ifndef _UTIL_H 00022 #define _UTIL_H 00023 00024 //degrees to radians 00025 #define DEG2RAD(x) ((x)*3.1415926/180) 00026 //radians to degrees 00027 #define RAD2DEG(x) ((x)/3.1415926*180) 00028 00029 //non blocking getchar 00030 int util_getch(void); 00031 //return timestamp in seconds with microsecond resolution 00032 double util_timestamp(); 00033 int util_timestamp_int(); 00034 #endif