1 #ifndef __ZMATH_H
2 #define __ZMATH_H
3 
4 #include <errno.h>
5 
6 #define NUM 3
7 #define NAN 2
8 #define INF 1
9 
10 #define __PI 3.14159265358979323846
11 #define __SQRT_HALF 0.70710678118654752440
12 #define __PI_OVER_TWO 1.57079632679489661923132
13 
14 extern double BIGX;
15 extern double SMALLX;
16 
17 typedef const union
18 {
19   long l[2];
20   double d;
21 } udouble;
22 
23 typedef const union
24 {
25   long l;
26   float f;
27 } ufloat;
28 
29 extern double BIGX;
30 extern double SMALLX;
31 
32 extern udouble z_infinity;
33 extern udouble z_notanum;
34 extern double  z_rooteps;
35 
36 extern ufloat  z_infinity_f;
37 extern ufloat  z_notanum_f;
38 extern float   z_rooteps_f;
39 
40 /* Core math routines. */
41 
42 int    _EXFUN (numtest, (double));
43 int    _EXFUN (numtestf, (float));
44 double _EXFUN (logarithm, (double, int));
45 float  _EXFUN (logarithmf, (float, int));
46 double _EXFUN (sine, (double, int));
47 float  _EXFUN (sinef, (float, int));
48 double _EXFUN (asine, (double, int));
49 float  _EXFUN (asinef, (float, int));
50 double _EXFUN (atangent, (double, double, double, int));
51 float  _EXFUN (atangentf, (float, float, float, int));
52 double _EXFUN (sineh, (double, int));
53 float  _EXFUN (sinehf, (float, int));
54 
55 #endif /* no __ZMATH_H */
56