1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
//
// Math header file for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-2020 by Bill Spitzak and others.
//
// This library is free software. Distribution and use rights are outlined in
// the file "COPYING" which should have been included with this file. If this
// file is missing or damaged, see the license at:
//
// https://www.fltk.org/COPYING.php
//
// Please see the following page on how to report bugs and issues:
//
// https://www.fltk.org/bugs.php
//
// Xcode on macOS includes files by recursing down into directories.
// This code catches the cycle and directly includes the required file.
#ifdef fl_math_h_cyclic_include
# include "/usr/include/math.h"
#endif
#ifndef fl_math_h
# define fl_math_h
# define fl_math_h_cyclic_include
# include <math.h>
# undef fl_math_h_cyclic_include
# ifndef M_PI
# 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
# endif // !M_PI
# ifndef M_SQRT2
# define M_SQRT2 1.41421356237309504880
# define M_SQRT1_2 0.70710678118654752440
# endif // !M_SQRT2
# if (defined(_WIN32) || defined(CRAY)) && !defined(__MINGW32__)
inline double rint(double v) {return floor(v+.5);}
inline double copysign(double a, double b) {return b<0 ? -a : a;}
# endif // (_WIN32 || CRAY) && !__MINGW32__
#endif // !fl_math_h
|
