fltk/FL/math.h

//
// "$Id: math.h,v 1.4.2.1 1999/04/07 14:22:21 gustavo Exp $"
//
// Math header file for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-1999 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@easysw.com".
//

#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 1.4.2.1 1999/04/07 14:22:21 gustavo Exp $".
//