1/****************************************************************
2
3The author of this software is David M. Gay.
4
5Copyright (C) 1998 by Lucent Technologies
6All Rights Reserved
7
8Permission to use, copy, modify, and distribute this software and
9its documentation for any purpose and without fee is hereby
10granted, provided that the above copyright notice appear in all
11copies and that both that the copyright notice and this
12permission notice and warranty disclaimer appear in supporting
13documentation, and that the name of Lucent or any of its entities
14not be used in advertising or publicity pertaining to
15distribution of the software without specific, written prior
16permission.
17
18LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
19INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
20IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
21SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
22WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
23IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
24ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
25THIS 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
42typedef unsigned Long ULong;
43#endif
44#ifndef UShort
45typedef 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
88FPI {
89	int nbits;
90	int emin;
91	int emax;
92	int rounding;
93	int sudden_underflow;
94	} FPI;
95
96enum {	/* 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
104extern "C" {
105#endif
106
107extern char* __dtoa  ANSI((double d, int mode, int ndigits, int *decpt,
108			int *sign, char **rve));
109extern char* __gdtoa ANSI((FPI *fpi, int be, ULong *bits, int *kindp,
110			int mode, int ndigits, int *decpt, char **rve));
111extern void __freedtoa ANSI((char*));
112extern float  strtof ANSI((CONST char *, char **));
113extern double strtod ANSI((CONST char *, char **));
114extern int __strtodg ANSI((CONST char*, char**, FPI*, Long*, ULong*));
115
116extern char*	__g_ddfmt  ANSI((char*, double*, int, size_t));
117extern char*	__g_dfmt   ANSI((char*, double*, int, size_t));
118extern char*	__g_ffmt   ANSI((char*, float*,  int, size_t));
119extern char*	__g_Qfmt   ANSI((char*, void*,   int, size_t));
120extern char*	__g_xfmt   ANSI((char*, void*,   int, size_t));
121extern char*	__g_xLfmt  ANSI((char*, void*,   int, size_t));
122
123extern int	__strtoId  ANSI((CONST char*, char**, double*, double*));
124extern int	__strtoIdd ANSI((CONST char*, char**, double*, double*));
125extern int	__strtoIf  ANSI((CONST char*, char**, float*, float*));
126extern int	__strtoIQ  ANSI((CONST char*, char**, void*, void*));
127extern int	__strtoIx  ANSI((CONST char*, char**, void*, void*));
128extern int	__strtoIxL ANSI((CONST char*, char**, void*, void*));
129extern int	__strtord  ANSI((CONST char*, char**, int, double*));
130extern int	__strtordd ANSI((CONST char*, char**, int, double*));
131extern int	__strtorf  ANSI((CONST char*, char**, int, float*));
132extern int	__strtorQ  ANSI((CONST char*, char**, int, void*));
133extern int	__strtorx  ANSI((CONST char*, char**, int, void*));
134extern int	__strtorxL ANSI((CONST char*, char**, int, void*));
135#if 1
136extern int	__strtodI  ANSI((CONST char*, char**, double*));
137extern int	__strtopd  ANSI((CONST char*, char**, double*));
138extern int	__strtopdd ANSI((CONST char*, char**, double*));
139extern int	__strtopf  ANSI((CONST char*, char**, float*));
140extern int	__strtopQ  ANSI((CONST char*, char**, void*));
141extern int	__strtopx  ANSI((CONST char*, char**, void*));
142extern int	__strtopxL ANSI((CONST char*, char**, void*));
143#else
144#define __strtopd(s,se,x) strtord(s,se,1,x)
145#define __strtopdd(s,se,x) strtordd(s,se,1,x)
146#define __strtopf(s,se,x) strtorf(s,se,1,x)
147#define __strtopQ(s,se,x) strtorQ(s,se,1,x)
148#define __strtopx(s,se,x) strtorx(s,se,1,x)
149#define __strtopxL(s,se,x) strtorxL(s,se,1,x)
150#endif
151
152#ifdef __cplusplus
153}
154#endif
155#endif /* GDTOA_H_INCLUDED */
156