Atlas - MATH.H
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[FILE BEGIN]
1/***
2*math.h - definitions and declarations for math library
3*
4*   Copyright (c) 1985-1988, Microsoft Corporation.  All rights reserved.
5*
6*Purpose:
7*   This file contains constant definitions and external subroutine
8*   declarations for the math subroutine library.
9*   [ANSI/System V]
10*
11*******************************************************************************/
12
13
14#ifndef NO_EXT_KEYS /* extensions enabled */
15    #define _CDECL   cdecl
16#else /* extensions not enabled */
17    #define _CDECL
18#endif /* NO_EXT_KEYS */
19
20
21/* definition of exception struct - this struct is passed to the matherr
22 * routine when a floating point exception is detected
23 */
24
25#ifndef _EXCEPTION_DEFINED
26struct exception {
27    int type;           /* exception type - see below */
28    char *name;   /* name of function where error occured */
29    double arg1;        /* first argument to function */
30    double arg2;        /* second argument (if any) to function */
31    double retval;      /* value to be returned by function */
32    } ;
33#define _EXCEPTION_DEFINED
34#endif
35
36
37/* definition of a complex struct to be used by those who use cabs and
38 * want type checking on their argument
39 */
40
41#ifndef _COMPLEX_DEFINED
42struct complex {
43    double x,y;     /* real and imaginary parts */
44    } ;
45#define _COMPLEX_DEFINED
46#endif
47
48
49/* Constant definitions for the exception type passed in the exception struct
50 */
51
52#define DOMAIN      1   /* argument domain error */
53#define SING        2   /* argument singularity */
54#define OVERFLOW    3   /* overflow range error */
55#define UNDERFLOW   4   /* underflow range error */
56#define TLOSS       5   /* total loss of precision */
57#define PLOSS       6   /* partial loss of precision */
58
59#define EDOM        33
60#define ERANGE      34
61
62
63/* definitions of HUGE and HUGE_VAL - respectively the XENIX and ANSI names
64 * for a value returned in case of error by a number of the floating point
65 * math routines
66 */
67
68extern double HUGE;
69#define HUGE_VAL HUGE
70
71
72
73/* function prototypes */
74
75int    _CDECL abs(int);
76double _CDECL acos(double);
77double _CDECL asin(double);
78double _CDECL atan(double);
79double _CDECL atan2(double, double);
80double _CDECL atof(const char *);
81double _CDECL cabs(struct complex);
82double _CDECL ceil(double);
83double _CDECL cos(double);
84double _CDECL cosh(double);
85int    _CDECL dieeetomsbin(double *, double *);
86int    _CDECL dmsbintoieee(double *, double *);
87double _CDECL exp(double);
88double _CDECL fabs(double);
89int    _CDECL fieeetomsbin(float *, float *);
90double _CDECL floor(double);
91double _CDECL fmod(double, double);
92int    _CDECL fmsbintoieee(float *, float *);
93double _CDECL frexp(double, int *);
94double _CDECL hypot(double, double);
95double _CDECL j0(double);
96double _CDECL j1(double);
97double _CDECL jn(int, double);
98long   _CDECL labs(long);
99double _CDECL ldexp(double, int);
100double _CDECL log(double);
101double _CDECL log10(double);
102int    _CDECL matherr(struct exception *);
103double _CDECL modf(double, double *);
104double _CDECL pow(double, double);
105double _CDECL sin(double);
106double _CDECL sinh(double);
107double _CDECL sqrt(double);
108double _CDECL tan(double);
109double _CDECL tanh(double);
110double _CDECL y0(double);
111double _CDECL y1(double);
112double _CDECL yn(int, double);
113
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