reactos/include/msvcrt/math.h

   1 /*
   2  * math.h
   3  *
   4  * Mathematical functions.
   5  *
   6  * This file is part of the Mingw32 package.
   7  *
   8  * Contributors:
   9  *  Created by Colin Peters <colin@bird.fu.is.saga-u.ac.jp>
  10  *
  11  *  THIS SOFTWARE IS NOT COPYRIGHTED
  12  *
  13  *  This source code is offered for use in the public domain. You may
  14  *  use, modify or distribute it freely.
  15  *
  16  *  This code is distributed in the hope that it will be useful but
  17  *  WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
  18  *  DISCLAMED. This includes but is not limited to warranties of
  19  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  20  *
  21  * $Revision: 1.3 $
  22  * $Author: chorns $
  23  * $Date: 2002/09/08 10:22:31 $
  24  *
  25  */
  26 // added modfl
  27
  28 #ifndef _MATH_H_
  29 #define _MATH_H_
  30
  31 #ifdef __cplusplus
  32 extern "C" {
  33 #endif
  34
  35 /*
  36  * HUGE_VAL is returned by strtod when the value would overflow the
  37  * representation of 'double'. There are other uses as well.
  38  *
  39  * __imp__HUGE is a pointer to the actual variable _HUGE in
  40  * MSVCRT.DLL. If we used _HUGE directly we would get a pointer
  41  * to a thunk function.
  42  *
  43  * NOTE: The CRTDLL version uses _HUGE_dll instead.
  44  */
  45 #if __MSVCRT__
  46 extern double*  __imp__HUGE;
  47 #define HUGE_VAL        (*__imp__HUGE)
  48 #else
  49 /* CRTDLL */
  50 extern double*  _HUGE_dll;
  51 #define HUGE_VAL        (*_HUGE_dll)
  52 #endif
  53
  54
  55 struct _exception
  56 {
  57         int     type;
  58         char    *name;
  59         double  arg1;
  60         double  arg2;
  61         double  retval;
  62 };
  63
  64 /*
  65  * Types for the above _exception structure.
  66  */
  67
  68 #define _DOMAIN         1       /* domain error in argument */
  69 #define _SING           2       /* singularity */
  70 #define _OVERFLOW       3       /* range overflow */
  71 #define _UNDERFLOW      4       /* range underflow */
  72 #define _TLOSS          5       /* total loss of precision */
  73 #define _PLOSS          6       /* partial loss of precision */
  74
  75 /*
  76  * Exception types with non-ANSI names for compatibility.
  77  */
  78
  79 #ifndef __STRICT_ANSI__
  80 #ifndef _NO_OLDNAMES
  81
  82 #define DOMAIN          _DOMAIN
  83 #define SING            _SING
  84 #define OVERFLOW        _OVERFLOW
  85 #define UNDERFLOW       _UNDERFLOW
  86 #define TLOSS           _TLOSS
  87 #define PLOSS           _PLOSS
  88
  89 #endif  /* Not _NO_OLDNAMES */
  90 #endif  /* Not __STRICT_ANSI__ */
  91
  92
  93 double  sin (double x);
  94 double  cos (double x);
  95 double  tan (double x);
  96 double  sinh (double x);
  97 double  cosh (double x);
  98 double  tanh (double x);
  99 double  asin (double x);
 100 double  acos (double x);
 101 double  atan (double x);
 102 double  atan2 (double y, double x);
 103 double  exp (double x);
 104 double  log (double x);
 105 double  log10 (double x);
 106 double  pow (double x, double y);
 107 long double     powl (long double x,long double y);
 108 double  sqrt (double x);
 109 double  ceil (double x);
 110 double  floor (double x);
 111 double  fabs (double x);
 112 double  ldexp (double x, int n);
 113 double  frexp (double x, int* exp);
 114 double  modf (double x, double* ip);
 115 long double modfl (long double x,long double* ip);
 116 double  fmod (double x, double y);
 117
 118
 119 #ifndef __STRICT_ANSI__
 120
 121 /* Complex number (for cabs) */
 122 struct _complex
 123 {
 124         double  x;      /* Real part */
 125         double  y;      /* Imaginary part */
 126 };
 127
 128 double  _cabs (struct _complex x);
 129 double  _hypot (double x, double y);
 130 double  _j0 (double x);
 131 double  _j1 (double x);
 132 double  _jn (int n, double x);
 133 double  _y0 (double x);
 134 double  _y1 (double x);
 135 double  _yn (int n, double x);
 136
 137 #ifndef _NO_OLDNAMES
 138
 139 /*
 140  * Non-underscored versions of non-ANSI functions. These reside in
 141  * liboldnames.a. Provided for extra portability.
 142  */
 143 double cabs (struct _complex x);
 144 double hypot (double x, double y);
 145 double j0 (double x);
 146 double j1 (double x);
 147 double jn (int n, double x);
 148 double y0 (double x);
 149 double y1 (double x);
 150 double yn (int n, double x);
 151
 152 #endif  /* Not _NO_OLDNAMES */
 153
 154 #endif  /* Not __STRICT_ANSI__ */
 155
 156 #ifdef __cplusplus
 157 }
 158 #endif
 159
 160 #endif /* Not _MATH_H_ */
 161