StdLib/LibC/gdtoa/gdtoa.h

   1 /** @file
   2
   3   Copyright (c) 2010 - 2014, Intel Corporation. All rights reserved.<BR>
   4   This program and the accompanying materials are licensed and made available under
   5   the terms and conditions of the BSD License that accompanies this distribution.
   6   The full text of the license may be found at
   7   http://opensource.org/licenses/bsd-license.
   8
   9   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  10   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  11
  12 The author of this software is David M. Gay.
  13
  14 Copyright (C) 1998 by Lucent Technologies
  15 All Rights Reserved
  16
  17 Permission to use, copy, modify, and distribute this software and
  18 its documentation for any purpose and without fee is hereby
  19 granted, provided that the above copyright notice appear in all
  20 copies and that both that the copyright notice and this
  21 permission notice and warranty disclaimer appear in supporting
  22 documentation, and that the name of Lucent or any of its entities
  23 not be used in advertising or publicity pertaining to
  24 distribution of the software without specific, written prior
  25 permission.
  26
  27 LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
  28 INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
  29 IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
  30 SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  31 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
  32 IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
  33 ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
  34 THIS SOFTWARE.
  35
  36   $NetBSD: gdtoa.h,v 1.6.4.1.4.1 2008/04/08 21:10:55 jdc Exp
  37
  38 ****************************************************************/
  39
  40 /* Please send bug reports to David M. Gay (dmg at acm dot org,
  41  * with " at " changed at "@" and " dot " changed to ".").  */
  42
  43 #ifndef GDTOA_H_INCLUDED
  44 #define GDTOA_H_INCLUDED
  45 #include  <LibConfig.h>
  46
  47 #include "arith.h"
  48
  49 #ifndef Long
  50 #define Long int32_t
  51 #endif
  52 #ifndef ULong
  53 #define ULong uint32_t
  54 #endif
  55 #ifndef UShort
  56 #define UShort uint16_t
  57 #endif
  58
  59 #ifndef ANSI
  60 #define ANSI(x) x
  61 #define Void void
  62 #endif /* ANSI */
  63
  64 #ifndef CONST
  65 #define CONST const
  66 #endif /* CONST */
  67
  68 enum {  /* return values from strtodg */
  69   STRTOG_Zero = 0,
  70   STRTOG_Normal = 1,
  71   STRTOG_Denormal = 2,
  72   STRTOG_Infinite = 3,
  73   STRTOG_NaN  = 4,
  74   STRTOG_NaNbits  = 5,
  75   STRTOG_NoNumber = 6,
  76   STRTOG_Retmask  = 7,
  77
  78   /* The following may be or-ed into one of the above values. */
  79
  80   STRTOG_Neg  = 0x08,
  81   STRTOG_Inexlo = 0x10,
  82   STRTOG_Inexhi = 0x20,
  83   STRTOG_Inexact  = 0x30,
  84   STRTOG_Underflow= 0x40,
  85   STRTOG_Overflow = 0x80,
  86   STRTOG_NoMemory = 0x100
  87 };
  88
  89  typedef struct
  90 FPI {
  91   int nbits;
  92   int emin;
  93   int emax;
  94   int rounding;
  95   int sudden_underflow;
  96 } FPI;
  97
  98 enum {  /* FPI.rounding values: same as FLT_ROUNDS */
  99   FPI_Round_zero = 0,
 100   FPI_Round_near = 1,
 101   FPI_Round_up = 2,
 102   FPI_Round_down = 3
 103 };
 104
 105 #ifdef __cplusplus
 106 extern "C" {
 107 #endif
 108
 109 #define dtoa    __dtoa
 110 #define gdtoa   __gdtoa
 111 #define ldtoa   __ldtoa
 112 #define hldtoa    __hldtoa
 113 #define hdtoa   __hdtoa
 114 #define freedtoa  __freedtoa
 115 #define strtodg   __strtodg_D2A
 116 #define strtopQ   __strtopQ_D2A
 117 #define strtopx   __strtopx_D2A
 118 #define strtopxL  __strtopxL_D2A
 119 #define strtord   __strtord_D2A
 120
 121 extern char* dtoa  ANSI((double d, int mode, int ndigits, int *decpt,
 122       int *sign, char **rve));
 123 extern char* hdtoa ANSI((double d, const char *xdigs, int ndigits, int *decpt,
 124       int *sign, char **rve));
 125 extern char* ldtoa ANSI((long double *ld, int mode, int ndigits, int *decpt,
 126       int *sign, char **rve));
 127 extern char* hldtoa ANSI((long double e, const char *xdigs, int ndigits,
 128       int *decpt, int *sign, char **rve));
 129
 130 extern char* gdtoa ANSI((FPI *fpi, int be, ULong *bits, int *kindp,
 131       int mode, int ndigits, int *decpt, char **rve));
 132 extern void freedtoa ANSI((char*));
 133 extern float  strtof ANSI((CONST char *, char **));
 134 extern double strtod ANSI((CONST char *, char **));
 135 extern int strtodg ANSI((CONST char*, char**, CONST FPI*, Long*, ULong*));
 136
 137 extern char*  g_ddfmt  ANSI((char*, double*, int, unsigned));
 138 extern char*  g_dfmt   ANSI((char*, double*, int, unsigned));
 139 extern char*  g_ffmt   ANSI((char*, float*,  int, unsigned));
 140 extern char*  g_Qfmt   ANSI((char*, void*,   int, unsigned));
 141 extern char*  g_xfmt   ANSI((char*, void*,   int, unsigned));
 142 extern char*  g_xLfmt  ANSI((char*, void*,   int, unsigned));
 143
 144 extern int  strtoId  ANSI((CONST char*, char**, double*, double*));
 145 extern int  strtoIdd ANSI((CONST char*, char**, double*, double*));
 146 extern int  strtoIf  ANSI((CONST char*, char**, float*, float*));
 147 extern int  strtoIQ  ANSI((CONST char*, char**, void*, void*));
 148 extern int  strtoIx  ANSI((CONST char*, char**, void*, void*));
 149 extern int  strtoIxL ANSI((CONST char*, char**, void*, void*));
 150 extern int  strtord  ANSI((CONST char*, char**, int, double*));
 151 extern int  strtordd ANSI((CONST char*, char**, int, double*));
 152 extern int  strtorf  ANSI((CONST char*, char**, int, float*));
 153 extern int  strtorQ  ANSI((CONST char*, char**, int, void*));
 154 extern int  strtorx  ANSI((CONST char*, char**, int, void*));
 155 extern int  strtorxL ANSI((CONST char*, char**, int, void*));
 156
 157 extern int  strtodI  ANSI((CONST char*, char**, double*));
 158 extern int  strtopd  ANSI((CONST char*, char**, double*));
 159 extern int  strtopdd ANSI((CONST char*, char**, double*));
 160 extern int  strtopf  ANSI((CONST char*, char**, float*));
 161 extern int  strtopQ  ANSI((CONST char*, char**, void*));
 162 extern int  strtopx  ANSI((CONST char*, char**, void*));
 163 extern int  strtopxL ANSI((CONST char*, char**, void*));
 164
 165 #ifdef __cplusplus
 166 }
 167 #endif
 168 #endif /* GDTOA_H_INCLUDED */