lib/libc/gdtoa/gdtoa.h

   1 /* $NetBSD: gdtoa.h,v 1.7 2007/02/02 23:05:56 christos Exp $ */
   2
   3 /****************************************************************
   4
   5 The author of this software is David M. Gay.
   6
   7 Copyright (C) 1998 by Lucent Technologies
   8 All Rights Reserved
   9
  10 Permission to use, copy, modify, and distribute this software and
  11 its documentation for any purpose and without fee is hereby
  12 granted, provided that the above copyright notice appear in all
  13 copies and that both that the copyright notice and this
  14 permission notice and warranty disclaimer appear in supporting
  15 documentation, and that the name of Lucent or any of its entities
  16 not be used in advertising or publicity pertaining to
  17 distribution of the software without specific, written prior
  18 permission.
  19
  20 LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
  21 INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
  22 IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
  23 SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  24 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
  25 IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
  26 ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
  27 THIS SOFTWARE.
  28
  29 ****************************************************************/
  30
  31 /* Please send bug reports to David M. Gay (dmg at acm dot org,
  32  * with " at " changed at "@" and " dot " changed to ".").      */
  33
  34 #ifndef GDTOA_H_INCLUDED
  35 #define GDTOA_H_INCLUDED
  36
  37 #include "arith.h"
  38
  39 #ifndef Long
  40 #define Long int32_t
  41 #endif
  42 #ifndef ULong
  43 #define ULong uint32_t
  44 #endif
  45 #ifndef UShort
  46 #define UShort uint16_t
  47 #endif
  48
  49 #ifndef ANSI
  50 #ifdef KR_headers
  51 #define ANSI(x) ()
  52 #define Void /*nothing*/
  53 #else
  54 #define ANSI(x) x
  55 #define Void void
  56 #endif
  57 #endif /* ANSI */
  58
  59 #ifndef CONST
  60 #ifdef KR_headers
  61 #define CONST /* blank */
  62 #else
  63 #define CONST const
  64 #endif
  65 #endif /* CONST */
  66
  67  enum { /* return values from strtodg */
  68         STRTOG_Zero     = 0,
  69         STRTOG_Normal   = 1,
  70         STRTOG_Denormal = 2,
  71         STRTOG_Infinite = 3,
  72         STRTOG_NaN      = 4,
  73         STRTOG_NaNbits  = 5,
  74         STRTOG_NoNumber = 6,
  75         STRTOG_Retmask  = 7,
  76
  77         /* The following may be or-ed into one of the above values. */
  78
  79         STRTOG_Neg      = 0x08,
  80         STRTOG_Inexlo   = 0x10,
  81         STRTOG_Inexhi   = 0x20,
  82         STRTOG_Inexact  = 0x30,
  83         STRTOG_Underflow= 0x40,
  84         STRTOG_Overflow = 0x80,
  85         STRTOG_NoMemory = 0x100
  86         };
  87
  88  typedef struct
  89 FPI {
  90         int nbits;
  91         int emin;
  92         int emax;
  93         int rounding;
  94         int sudden_underflow;
  95         } FPI;
  96
  97 enum {  /* FPI.rounding values: same as FLT_ROUNDS */
  98         FPI_Round_zero = 0,
  99         FPI_Round_near = 1,
 100         FPI_Round_up = 2,
 101         FPI_Round_down = 3
 102         };
 103
 104 #ifdef __cplusplus
 105 extern "C" {
 106 #endif
 107
 108 #define dtoa            __dtoa
 109 #define gdtoa           __gdtoa
 110 #define ldtoa           __ldtoa
 111 #define hldtoa          __hldtoa
 112 #define hdtoa           __hdtoa
 113 #define freedtoa        __freedtoa
 114 #define strtodg         __strtodg_D2A
 115 #define strtopQ         __strtopQ_D2A
 116 #define strtopx         __strtopx_D2A
 117 #define strtopxL        __strtopxL_D2A
 118 #define strtord         __strtord_D2A
 119
 120 extern char* dtoa  ANSI((double d, int mode, int ndigits, int *decpt,
 121                         int *sign, char **rve));
 122 extern char* hdtoa ANSI((double d, const char *xdigs, int ndigits, int *decpt,
 123                         int *sign, char **rve));
 124 extern char* ldtoa ANSI((long double *ld, int mode, int ndigits, int *decpt,
 125                         int *sign, char **rve));
 126 extern char* hldtoa ANSI((long double e, const char *xdigs, int ndigits,
 127                         int *decpt, int *sign, char **rve));
 128
 129 extern char* gdtoa ANSI((FPI *fpi, int be, ULong *bits, int *kindp,
 130                         int mode, int ndigits, int *decpt, char **rve));
 131 extern void freedtoa ANSI((char*));
 132 extern float  strtof ANSI((CONST char *, char **));
 133 extern double strtod ANSI((CONST char *, char **));
 134 extern int strtodg ANSI((CONST char*, char**, CONST FPI*, Long*, ULong*));
 135
 136 extern char*    g_ddfmt  ANSI((char*, double*, int, unsigned));
 137 extern char*    g_dfmt   ANSI((char*, double*, int, unsigned));
 138 extern char*    g_ffmt   ANSI((char*, float*,  int, unsigned));
 139 extern char*    g_Qfmt   ANSI((char*, void*,   int, unsigned));
 140 extern char*    g_xfmt   ANSI((char*, void*,   int, unsigned));
 141 extern char*    g_xLfmt  ANSI((char*, void*,   int, unsigned));
 142
 143 extern int      strtoId  ANSI((CONST char*, char**, double*, double*));
 144 extern int      strtoIdd ANSI((CONST char*, char**, double*, double*));
 145 extern int      strtoIf  ANSI((CONST char*, char**, float*, float*));
 146 extern int      strtoIQ  ANSI((CONST char*, char**, void*, void*));
 147 extern int      strtoIx  ANSI((CONST char*, char**, void*, void*));
 148 extern int      strtoIxL ANSI((CONST char*, char**, void*, void*));
 149 extern int      strtord  ANSI((CONST char*, char**, int, double*));
 150 extern int      strtordd ANSI((CONST char*, char**, int, double*));
 151 extern int      strtorf  ANSI((CONST char*, char**, int, float*));
 152 extern int      strtorQ  ANSI((CONST char*, char**, int, void*));
 153 extern int      strtorx  ANSI((CONST char*, char**, int, void*));
 154 extern int      strtorxL ANSI((CONST char*, char**, int, void*));
 155 #if 1
 156 extern int      strtodI  ANSI((CONST char*, char**, double*));
 157 extern int      strtopd  ANSI((CONST char*, char**, double*));
 158 extern int      strtopdd ANSI((CONST char*, char**, double*));
 159 extern int      strtopf  ANSI((CONST char*, char**, float*));
 160 extern int      strtopQ  ANSI((CONST char*, char**, void*));
 161 extern int      strtopx  ANSI((CONST char*, char**, void*));
 162 extern int      strtopxL ANSI((CONST char*, char**, void*));
 163 #else
 164 #define strtopd(s,se,x) strtord(s,se,1,x)
 165 #define strtopdd(s,se,x) strtordd(s,se,1,x)
 166 #define strtopf(s,se,x) strtorf(s,se,1,x)
 167 #define strtopQ(s,se,x) strtorQ(s,se,1,x)
 168 #define strtopx(s,se,x) strtorx(s,se,1,x)
 169 #define strtopxL(s,se,x) strtorxL(s,se,1,x)
 170 #endif
 171
 172 #ifdef __cplusplus
 173 }
 174 #endif
 175 #endif /* GDTOA_H_INCLUDED */