libquadmath/gdtoa/gdtoa.h

   1 /****************************************************************
   2
   3 The author of this software is David M. Gay.
   4
   5 Copyright (C) 1998 by Lucent Technologies
   6 All Rights Reserved
   7
   8 Permission to use, copy, modify, and distribute this software and
   9 its documentation for any purpose and without fee is hereby
  10 granted, provided that the above copyright notice appear in all
  11 copies and that both that the copyright notice and this
  12 permission notice and warranty disclaimer appear in supporting
  13 documentation, and that the name of Lucent or any of its entities
  14 not be used in advertising or publicity pertaining to
  15 distribution of the software without specific, written prior
  16 permission.
  17
  18 LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
  19 INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
  20 IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
  21 SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  22 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
  23 IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
  24 ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
  25 THIS SOFTWARE.
  26
  27 ****************************************************************/
  28
  29 /* Please send bug reports to David M. Gay (dmg at acm dot org,
  30  * with " at " changed at "@" and " dot " changed to ".").      */
  31
  32 #ifndef GDTOA_H_INCLUDED
  33 #define GDTOA_H_INCLUDED
  34
  35 #include "arith.h"
  36 #include <stddef.h> /* for size_t */
  37 #include <stdlib.h> /* for strtod */
  38
  39 #ifndef Long
  40 #define Long long
  41 #endif
  42 #ifndef ULong
  43 typedef unsigned Long ULong;
  44 #endif
  45 #ifndef UShort
  46 typedef unsigned short UShort;
  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, /* does not affect STRTOG_Inexlo or STRTOG_Inexhi */
  80         STRTOG_Inexlo   = 0x10, /* returned result rounded toward zero */
  81         STRTOG_Inexhi   = 0x20, /* returned result rounded away from zero */
  82         STRTOG_Inexact  = 0x30,
  83         STRTOG_Underflow= 0x40,
  84         STRTOG_Overflow = 0x80
  85         };
  86
  87  typedef struct
  88 FPI {
  89         int nbits;
  90         int emin;
  91         int emax;
  92         int rounding;
  93         int sudden_underflow;
  94         } FPI;
  95
  96 enum {  /* FPI.rounding values: same as FLT_ROUNDS */
  97         FPI_Round_zero = 0,
  98         FPI_Round_near = 1,
  99         FPI_Round_up = 2,
 100         FPI_Round_down = 3
 101         };
 102
 103 #ifdef __cplusplus
 104 extern "C" {
 105 #endif
 106
 107 extern char* dtoa  ANSI((double d, int mode, int ndigits, int *decpt,
 108                         int *sign, char **rve));
 109 extern char* gdtoa ANSI((FPI *fpi, int be, ULong *bits, int *kindp,
 110                         int mode, int ndigits, int *decpt, char **rve));
 111 extern void freedtoa ANSI((char*));
 112 extern int strtodg ANSI((CONST char*, char**, FPI*, Long*, ULong*));
 113
 114 extern char*    g_ddfmt  ANSI((char*, double*, int, size_t));
 115 extern char*    g_dfmt   ANSI((char*, double*, int, size_t));
 116 extern char*    g_ffmt   ANSI((char*, float*,  int, size_t));
 117 extern char*    g_Qfmt   ANSI((char*, void*,   int, size_t));
 118 extern char*    g_xfmt   ANSI((char*, void*,   int, size_t));
 119 extern char*    g_xLfmt  ANSI((char*, void*,   int, size_t));
 120
 121 extern int      strtoId  ANSI((CONST char*, char**, double*, double*));
 122 extern int      strtoIdd ANSI((CONST char*, char**, double*, double*));
 123 extern int      strtoIf  ANSI((CONST char*, char**, float*, float*));
 124 extern int      strtoIQ  ANSI((CONST char*, char**, void*, void*));
 125 extern int      strtoIx  ANSI((CONST char*, char**, void*, void*));
 126 extern int      strtoIxL ANSI((CONST char*, char**, void*, void*));
 127 extern int      strtord  ANSI((CONST char*, char**, int, double*));
 128 extern int      strtordd ANSI((CONST char*, char**, int, double*));
 129 extern int      strtorf  ANSI((CONST char*, char**, int, float*));
 130 extern int      strtorQ  ANSI((CONST char*, char**, int, void*));
 131 extern int      strtorx  ANSI((CONST char*, char**, int, void*));
 132 extern int      strtorxL ANSI((CONST char*, char**, int, void*));
 133 #if 1
 134 extern int      strtodI  ANSI((CONST char*, char**, double*));
 135 extern int      strtopd  ANSI((CONST char*, char**, double*));
 136 extern int      strtopdd ANSI((CONST char*, char**, double*));
 137 extern int      strtopf  ANSI((CONST char*, char**, float*));
 138 extern int      quadmath_strtopQ  ANSI((CONST char*, char**, void*));
 139 extern int      strtopx  ANSI((CONST char*, char**, void*));
 140 extern int      strtopxL ANSI((CONST char*, char**, void*));
 141 #else
 142 #define strtopd(s,se,x) strtord(s,se,1,x)
 143 #define strtopdd(s,se,x) strtordd(s,se,1,x)
 144 #define strtopf(s,se,x) strtorf(s,se,1,x)
 145 #define strtopQ(s,se,x) strtorQ(s,se,1,x)
 146 #define strtopx(s,se,x) strtorx(s,se,1,x)
 147 #define strtopxL(s,se,x) strtorxL(s,se,1,x)
 148 #endif
 149
 150 #ifdef __cplusplus
 151 }
 152 #endif
 153 #endif /* GDTOA_H_INCLUDED */