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 = 0, 68 STRTOG_Normal = 1, 69 STRTOG_Denormal = 2, 70 STRTOG_Infinite = 3, 71 STRTOG_NaN = 4, 72 STRTOG_NaNbits = 5, 73 STRTOG_NoNumber = 6, 74 STRTOG_Retmask = 7, 75 76 /* The following may be or-ed into one of the above values. */ 77 78 STRTOG_Neg = 0x08, /* does not affect STRTOG_Inexlo or STRTOG_Inexhi */ 79 STRTOG_Inexlo = 0x10, /* returned result rounded toward zero */ 80 STRTOG_Inexhi = 0x20, /* returned result rounded away from zero */ 81 STRTOG_Inexact = 0x30, 82 STRTOG_Underflow= 0x40, 83 STRTOG_Overflow = 0x80 84 }; 85 86 typedef struct 87 FPI { 88 int nbits; 89 int emin; 90 int emax; 91 int rounding; 92 int sudden_underflow; 93 } FPI; 94 95 enum { /* FPI.rounding values: same as FLT_ROUNDS */ 96 FPI_Round_zero = 0, 97 FPI_Round_near = 1, 98 FPI_Round_up = 2, 99 FPI_Round_down = 3 100 }; 101 102 #ifdef __cplusplus 103 extern "C" { 104 #endif 105 106 extern char* dtoa ANSI((double d, int mode, int ndigits, int *decpt, 107 int *sign, char **rve)); 108 extern char* gdtoa ANSI((FPI *fpi, int be, ULong *bits, int *kindp, 109 int mode, int ndigits, int *decpt, char **rve)); 110 extern void freedtoa ANSI((char*)); 111 extern float strtof ANSI((CONST char *, char **)); 112 extern double strtod ANSI((CONST char *, char **)); 113 extern int strtodg ANSI((CONST char*, char**, FPI*, Long*, ULong*)); 114 115 extern char* g_ddfmt ANSI((char*, double*, int, size_t)); 116 extern char* g_dfmt ANSI((char*, double*, int, size_t)); 117 extern char* g_ffmt ANSI((char*, float*, int, size_t)); 118 extern char* g_Qfmt ANSI((char*, void*, int, size_t)); 119 extern char* g_xfmt ANSI((char*, void*, int, size_t)); 120 extern char* g_xLfmt ANSI((char*, void*, int, size_t)); 121 122 extern int strtoId ANSI((CONST char*, char**, double*, double*)); 123 extern int strtoIdd ANSI((CONST char*, char**, double*, double*)); 124 extern int strtoIf ANSI((CONST char*, char**, float*, float*)); 125 extern int strtoIQ ANSI((CONST char*, char**, void*, void*)); 126 extern int strtoIx ANSI((CONST char*, char**, void*, void*)); 127 extern int strtoIxL ANSI((CONST char*, char**, void*, void*)); 128 extern int strtord ANSI((CONST char*, char**, int, double*)); 129 extern int strtordd ANSI((CONST char*, char**, int, double*)); 130 extern int strtorf ANSI((CONST char*, char**, int, float*)); 131 extern int strtorQ ANSI((CONST char*, char**, int, void*)); 132 extern int strtorx ANSI((CONST char*, char**, int, void*)); 133 extern int strtorxL ANSI((CONST char*, char**, int, void*)); 134 #if 1 135 extern int strtodI ANSI((CONST char*, char**, double*)); 136 extern int strtopd ANSI((CONST char*, char**, double*)); 137 extern int strtopdd ANSI((CONST char*, char**, double*)); 138 extern int strtopf ANSI((CONST char*, char**, float*)); 139 extern int strtopQ ANSI((CONST char*, char**, void*)); 140 extern int strtopx ANSI((CONST char*, char**, void*)); 141 extern int strtopxL ANSI((CONST char*, char**, void*)); 142 #else 143 #define strtopd(s,se,x) strtord(s,se,1,x) 144 #define strtopdd(s,se,x) strtordd(s,se,1,x) 145 #define strtopf(s,se,x) strtorf(s,se,1,x) 146 #define strtopQ(s,se,x) strtorQ(s,se,1,x) 147 #define strtopx(s,se,x) strtorx(s,se,1,x) 148 #define strtopxL(s,se,x) strtorxL(s,se,1,x) 149 #endif 150 151 #ifdef __cplusplus 152 } 153 #endif 154 #endif /* GDTOA_H_INCLUDED */ 155