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 38 #ifndef Long 39 #define Long int 40 #endif 41 #ifndef ULong 42 typedef unsigned Long ULong; 43 #endif 44 #ifndef UShort 45 typedef unsigned short UShort; 46 #endif 47 48 #ifndef ANSI 49 #ifdef KR_headers 50 #define ANSI(x) () 51 #define Void /*nothing*/ 52 #else 53 #define ANSI(x) x 54 #define Void void 55 #endif 56 #endif /* ANSI */ 57 58 #ifndef CONST 59 #ifdef KR_headers 60 #define CONST /* blank */ 61 #else 62 #define CONST const 63 #endif 64 #endif /* CONST */ 65 66 enum { /* return values from strtodg */ 67 STRTOG_Zero = 0x000, 68 STRTOG_Normal = 0x001, 69 STRTOG_Denormal = 0x002, 70 STRTOG_Infinite = 0x003, 71 STRTOG_NaN = 0x004, 72 STRTOG_NaNbits = 0x005, 73 STRTOG_NoNumber = 0x006, 74 STRTOG_NoMemory = 0x007, 75 STRTOG_Retmask = 0x00f, 76 77 /* The following may be or-ed into one of the above values. */ 78 79 STRTOG_Inexlo = 0x010, /* returned result rounded toward zero */ 80 STRTOG_Inexhi = 0x020, /* returned result rounded away from zero */ 81 STRTOG_Inexact = 0x030, 82 STRTOG_Underflow= 0x040, 83 STRTOG_Overflow = 0x080, 84 STRTOG_Neg = 0x100 /* does not affect STRTOG_Inexlo or STRTOG_Inexhi */ 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 float strtof ANSI((CONST char *, char **)); 113 extern double strtod ANSI((CONST char *, char **)); 114 extern int __strtodg ANSI((CONST char*, char**, FPI*, Long*, ULong*)); 115 char *__hdtoa(double, const char *, int, int *, int *, char **); 116 char *__hldtoa(long double, const char *, int, int *, int *, char **); 117 char *__ldtoa(long double *, int, int, int *, int *, char **); 118 119 PROTO_NORMAL(__dtoa); 120 PROTO_NORMAL(__gdtoa); 121 PROTO_NORMAL(__freedtoa); 122 PROTO_NORMAL(__hdtoa); 123 PROTO_NORMAL(__hldtoa); 124 PROTO_NORMAL(__ldtoa); 125 126 __BEGIN_HIDDEN_DECLS 127 extern char* __g_ddfmt ANSI((char*, double*, int, size_t)); 128 extern char* __g_dfmt ANSI((char*, double*, int, size_t)); 129 extern char* __g_ffmt ANSI((char*, float*, int, size_t)); 130 extern char* __g_Qfmt ANSI((char*, void*, int, size_t)); 131 extern char* __g_xfmt ANSI((char*, void*, int, size_t)); 132 extern char* __g_xLfmt ANSI((char*, void*, int, size_t)); 133 134 extern int __strtoId ANSI((CONST char*, char**, double*, double*)); 135 extern int __strtoIdd ANSI((CONST char*, char**, double*, double*)); 136 extern int __strtoIf ANSI((CONST char*, char**, float*, float*)); 137 extern int __strtoIQ ANSI((CONST char*, char**, void*, void*)); 138 extern int __strtoIx ANSI((CONST char*, char**, void*, void*)); 139 extern int __strtoIxL ANSI((CONST char*, char**, void*, void*)); 140 extern int __strtord ANSI((CONST char*, char**, int, double*)); 141 extern int __strtordd ANSI((CONST char*, char**, int, double*)); 142 extern int __strtorf ANSI((CONST char*, char**, int, float*)); 143 extern int __strtorQ ANSI((CONST char*, char**, int, void*)); 144 extern int __strtorx ANSI((CONST char*, char**, int, void*)); 145 extern int __strtorxL ANSI((CONST char*, char**, int, void*)); 146 #if 1 147 extern int __strtodI ANSI((CONST char*, char**, double*)); 148 extern int __strtopd ANSI((CONST char*, char**, double*)); 149 extern int __strtopdd ANSI((CONST char*, char**, double*)); 150 extern int __strtopf ANSI((CONST char*, char**, float*)); 151 extern int __strtopQ ANSI((CONST char*, char**, void*)); 152 extern int __strtopx ANSI((CONST char*, char**, void*)); 153 extern int __strtopxL ANSI((CONST char*, char**, void*)); 154 #else 155 #define __strtopd(s,se,x) strtord(s,se,1,x) 156 #define __strtopdd(s,se,x) strtordd(s,se,1,x) 157 #define __strtopf(s,se,x) strtorf(s,se,1,x) 158 #define __strtopQ(s,se,x) strtorQ(s,se,1,x) 159 #define __strtopx(s,se,x) strtorx(s,se,1,x) 160 #define __strtopxL(s,se,x) strtorxL(s,se,1,x) 161 #endif 162 __END_HIDDEN_DECLS 163 164 #ifdef __cplusplus 165 } 166 #endif 167 #endif /* GDTOA_H_INCLUDED */ 168