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 37 #ifndef Long 38 #define Long long 39 #endif 40 #ifndef ULong 41 typedef unsigned Long ULong; 42 #endif 43 #ifndef UShort 44 typedef unsigned short UShort; 45 #endif 46 47 #ifndef ANSI 48 #ifdef KR_headers 49 #define ANSI(x) () 50 #define Void /*nothing*/ 51 #else 52 #define ANSI(x) x 53 #define Void void 54 #endif 55 #endif /* ANSI */ 56 57 #ifndef CONST 58 #ifdef KR_headers 59 #define CONST /* blank */ 60 #else 61 #define CONST const 62 #endif 63 #endif /* CONST */ 64 65 enum { /* return values from strtodg */ 66 STRTOG_Zero = 0, 67 STRTOG_Normal = 1, 68 STRTOG_Denormal = 2, 69 STRTOG_Infinite = 3, 70 STRTOG_NaN = 4, 71 STRTOG_NaNbits = 5, 72 STRTOG_NoNumber = 6, 73 STRTOG_Retmask = 7, 74 75 /* The following may be or-ed into one of the above values. */ 76 77 STRTOG_Neg = 0x08, 78 STRTOG_Inexlo = 0x10, 79 STRTOG_Inexhi = 0x20, 80 STRTOG_Inexact = 0x30, 81 STRTOG_Underflow= 0x40, 82 STRTOG_Overflow = 0x80 83 }; 84 85 typedef struct 86 FPI { 87 int nbits; 88 int emin; 89 int emax; 90 int rounding; 91 int sudden_underflow; 92 } FPI; 93 94 enum { /* FPI.rounding values: same as FLT_ROUNDS */ 95 FPI_Round_zero = 0, 96 FPI_Round_near = 1, 97 FPI_Round_up = 2, 98 FPI_Round_down = 3 99 }; 100 101 #ifdef __cplusplus 102 extern "C" { 103 #endif 104 105 extern char* dtoa ANSI((double d, int mode, int ndigits, int *decpt, 106 int *sign, char **rve)); 107 extern char* gdtoa ANSI((FPI *fpi, int be, ULong *bits, int *kindp, 108 int mode, int ndigits, int *decpt, char **rve)); 109 extern void freedtoa ANSI((char*)); 110 extern float strtof ANSI((CONST char *, char **)); 111 extern double strtod ANSI((CONST char *, char **)); 112 extern int strtodg ANSI((CONST char*, char**, FPI*, Long*, ULong*)); 113 114 extern char* g_ddfmt ANSI((char*, double*, int, unsigned)); 115 extern char* g_dfmt ANSI((char*, double*, int, unsigned)); 116 extern char* g_ffmt ANSI((char*, float*, int, unsigned)); 117 extern char* g_Qfmt ANSI((char*, void*, int, unsigned)); 118 extern char* g_xfmt ANSI((char*, void*, int, unsigned)); 119 extern char* g_xLfmt ANSI((char*, void*, int, unsigned)); 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 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 */ 154