gdtoa.h revision 1.9
1 /* $NetBSD: gdtoa.h,v 1.9 2011/03/20 23:15:35 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 #include <stddef.h> /* for size_t */ 39 #include <stdint.h> 40 41 #ifndef Long 42 #define Long int32_t 43 #endif 44 #ifndef ULong 45 #define ULong uint32_t 46 #endif 47 #ifndef UShort 48 #define UShort uint16_t 49 #endif 50 51 #ifndef ANSI 52 #ifdef KR_headers 53 #define ANSI(x) () 54 #define Void /*nothing*/ 55 #else 56 #define ANSI(x) x 57 #define Void void 58 #endif 59 #endif /* ANSI */ 60 61 #ifndef CONST 62 #ifdef KR_headers 63 #define CONST /* blank */ 64 #else 65 #define CONST const 66 #endif 67 #endif /* CONST */ 68 69 enum { /* return values from strtodg */ 70 STRTOG_Zero = 0, 71 STRTOG_Normal = 1, 72 STRTOG_Denormal = 2, 73 STRTOG_Infinite = 3, 74 STRTOG_NaN = 4, 75 STRTOG_NaNbits = 5, 76 STRTOG_NoNumber = 6, 77 STRTOG_Retmask = 7, 78 79 /* The following may be or-ed into one of the above values. */ 80 81 STRTOG_Neg = 0x08, /* does not affect STRTOG_Inexlo or STRTOG_Inexhi */ 82 STRTOG_Inexlo = 0x10, /* returned result rounded toward zero */ 83 STRTOG_Inexhi = 0x20, /* returned result rounded away from zero */ 84 STRTOG_Inexact = 0x30, 85 STRTOG_Underflow= 0x40, 86 STRTOG_Overflow = 0x80, 87 STRTOG_NoMemory = 0x100 88 }; 89 90 typedef struct 91 FPI { 92 int nbits; 93 int emin; 94 int emax; 95 int rounding; 96 int sudden_underflow; 97 } FPI; 98 99 enum { /* FPI.rounding values: same as FLT_ROUNDS */ 100 FPI_Round_zero = 0, 101 FPI_Round_near = 1, 102 FPI_Round_up = 2, 103 FPI_Round_down = 3 104 }; 105 106 #ifdef __cplusplus 107 extern "C" { 108 #endif 109 110 #define dtoa __dtoa 111 #define gdtoa __gdtoa 112 #define ldtoa __ldtoa 113 #define hldtoa __hldtoa 114 #define hdtoa __hdtoa 115 #define freedtoa __freedtoa 116 #define strtodg __strtodg_D2A 117 #define strtopQ __strtopQ_D2A 118 #define strtopx __strtopx_D2A 119 #define strtopxL __strtopxL_D2A 120 #define strtord __strtord_D2A 121 122 extern char* dtoa ANSI((double d, int mode, int ndigits, int *decpt, 123 int *sign, char **rve)); 124 extern char* hdtoa ANSI((double d, const char *xdigs, int ndigits, int *decpt, 125 int *sign, char **rve)); 126 extern char* ldtoa ANSI((long double *ld, int mode, int ndigits, int *decpt, 127 int *sign, char **rve)); 128 extern char* hldtoa ANSI((long double e, const char *xdigs, int ndigits, 129 int *decpt, int *sign, char **rve)); 130 131 extern char* gdtoa ANSI((FPI *fpi, int be, ULong *bits, int *kindp, 132 int mode, int ndigits, int *decpt, char **rve)); 133 extern void freedtoa ANSI((char*)); 134 extern float strtof ANSI((CONST char *, char **)); 135 extern double strtod ANSI((CONST char *, char **)); 136 extern int strtodg ANSI((CONST char*, char**, CONST FPI*, Long*, ULong*)); 137 138 extern char* g_ddfmt ANSI((char*, double*, int, size_t)); 139 extern char* g_dfmt ANSI((char*, double*, int, size_t)); 140 extern char* g_ffmt ANSI((char*, float*, int, size_t)); 141 extern char* g_Qfmt ANSI((char*, void*, int, size_t)); 142 extern char* g_xfmt ANSI((char*, void*, int, size_t)); 143 extern char* g_xLfmt ANSI((char*, void*, int, size_t)); 144 145 extern int strtoId ANSI((CONST char*, char**, double*, double*)); 146 extern int strtoIdd ANSI((CONST char*, char**, double*, double*)); 147 extern int strtoIf ANSI((CONST char*, char**, float*, float*)); 148 extern int strtoIQ ANSI((CONST char*, char**, void*, void*)); 149 extern int strtoIx ANSI((CONST char*, char**, void*, void*)); 150 extern int strtoIxL ANSI((CONST char*, char**, void*, void*)); 151 extern int strtord ANSI((CONST char*, char**, int, double*)); 152 extern int strtordd ANSI((CONST char*, char**, int, double*)); 153 extern int strtorf ANSI((CONST char*, char**, int, float*)); 154 extern int strtorQ ANSI((CONST char*, char**, int, void*)); 155 extern int strtorx ANSI((CONST char*, char**, int, void*)); 156 extern int strtorxL ANSI((CONST char*, char**, int, void*)); 157 #if 1 158 extern int strtodI ANSI((CONST char*, char**, double*)); 159 extern int strtopd ANSI((CONST char*, char**, double*)); 160 extern int strtopdd ANSI((CONST char*, char**, double*)); 161 extern int strtopf ANSI((CONST char*, char**, float*)); 162 extern int strtopQ ANSI((CONST char*, char**, void*)); 163 extern int strtopx ANSI((CONST char*, char**, void*)); 164 extern int strtopxL ANSI((CONST char*, char**, void*)); 165 #else 166 #define strtopd(s,se,x) strtord(s,se,1,x) 167 #define strtopdd(s,se,x) strtordd(s,se,1,x) 168 #define strtopf(s,se,x) strtorf(s,se,1,x) 169 #define strtopQ(s,se,x) strtorQ(s,se,1,x) 170 #define strtopx(s,se,x) strtorx(s,se,1,x) 171 #define strtopxL(s,se,x) strtorxL(s,se,1,x) 172 #endif 173 174 #ifdef __cplusplus 175 } 176 #endif 177 #endif /* GDTOA_H_INCLUDED */ 178
Indexes created Mon Sep 29 21:09:56 GMT 2025