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      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 */
    169