v4.0/src/TOOLS/BLD/INC/MATH.H

   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
  26 struct 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
  42 struct 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
  68 extern double HUGE;
  69 #define HUGE_VAL HUGE
  70
  71
  72
  73 /* function prototypes */
  74
  75 int    _CDECL abs(int);
  76 double _CDECL acos(double);
  77 double _CDECL asin(double);
  78 double _CDECL atan(double);
  79 double _CDECL atan2(double, double);
  80 double _CDECL atof(const char *);
  81 double _CDECL cabs(struct complex);
  82 double _CDECL ceil(double);
  83 double _CDECL cos(double);
  84 double _CDECL cosh(double);
  85 int    _CDECL dieeetomsbin(double *, double *);
  86 int    _CDECL dmsbintoieee(double *, double *);
  87 double _CDECL exp(double);
  88 double _CDECL fabs(double);
  89 int    _CDECL fieeetomsbin(float *, float *);
  90 double _CDECL floor(double);
  91 double _CDECL fmod(double, double);
  92 int    _CDECL fmsbintoieee(float *, float *);
  93 double _CDECL frexp(double, int *);
  94 double _CDECL hypot(double, double);
  95 double _CDECL j0(double);
  96 double _CDECL j1(double);
  97 double _CDECL jn(int, double);
  98 long   _CDECL labs(long);
  99 double _CDECL ldexp(double, int);
 100 double _CDECL log(double);
 101 double _CDECL log10(double);
 102 int    _CDECL matherr(struct exception *);
 103 double _CDECL modf(double, double *);
 104 double _CDECL pow(double, double);
 105 double _CDECL sin(double);
 106 double _CDECL sinh(double);
 107 double _CDECL sqrt(double);
 108 double _CDECL tan(double);
 109 double _CDECL tanh(double);
 110 double _CDECL y0(double);
 111 double _CDECL y1(double);
 112 double _CDECL yn(int, double);