fltk/FL/math.h

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//
// "$Id: math.h,v 1.4.2.4.2.1 2002/01/01 15:11:28 easysw Exp $"
//
// Math header file for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-2002 by Bill Spitzak and others.
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Library General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Library General Public License for more details.
//
// You should have received a copy of the GNU Library General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA.
//
// Please report all bugs and problems to "fltk-bugs@fltk.org".
//
#ifndef fl_math_h
#define fl_math_h
#include <math.h>
#ifdef WIN32
// things missing from <math.h>:
#define M_PI 3.14159265358979323846
#define M_PI_2 1.57079632679489661923
#define M_PI_4 0.78539816339744830962
#define M_1_PI 0.31830988618379067154
#define M_2_PI 0.63661977236758134308
#define M_SQRT2 1.41421356237309504880
#define M_SQRT1_2 0.70710678118654752440
#else
#ifdef __EMX__
#include <float.h>
#endif
#endif
#if defined(WIN32) || defined(CRAY)
inline double rint(double v) {return floor(v+.5);}
inline double copysign(double a, double b) {return b<0 ? -a : a;}
#endif
#endif
//
// End of "$Id: math.h,v 1.4.2.4.2.1 2002/01/01 15:11:28 easysw Exp $".
//