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/gecko_api/include/prdtoa.h

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C++ Header | 90 lines | 15 code | 8 blank | 67 comment | 0 complexity | 2d11e9f8db44eac5f67bf1e41e00104d MD5 | raw file
 1/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 2/* ***** BEGIN LICENSE BLOCK *****
 3 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 4 *
 5 * The contents of this file are subject to the Mozilla Public License Version
 6 * 1.1 (the "License"); you may not use this file except in compliance with
 7 * the License. You may obtain a copy of the License at
 8 * http://www.mozilla.org/MPL/
 9 *
10 * Software distributed under the License is distributed on an "AS IS" basis,
11 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
12 * for the specific language governing rights and limitations under the
13 * License.
14 *
15 * The Original Code is the Netscape Portable Runtime (NSPR).
16 *
17 * The Initial Developer of the Original Code is
18 * Netscape Communications Corporation.
19 * Portions created by the Initial Developer are Copyright (C) 1998-2000
20 * the Initial Developer. All Rights Reserved.
21 *
22 * Contributor(s):
23 *
24 * Alternatively, the contents of this file may be used under the terms of
25 * either the GNU General Public License Version 2 or later (the "GPL"), or
26 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
27 * in which case the provisions of the GPL or the LGPL are applicable instead
28 * of those above. If you wish to allow use of your version of this file only
29 * under the terms of either the GPL or the LGPL, and not to allow others to
30 * use your version of this file under the terms of the MPL, indicate your
31 * decision by deleting the provisions above and replace them with the notice
32 * and other provisions required by the GPL or the LGPL. If you do not delete
33 * the provisions above, a recipient may use your version of this file under
34 * the terms of any one of the MPL, the GPL or the LGPL.
35 *
36 * ***** END LICENSE BLOCK ***** */
37
38#ifndef prdtoa_h___
39#define prdtoa_h___
40
41#include "prtypes.h"
42
43PR_BEGIN_EXTERN_C
44
45/*
46** PR_strtod() returns as a double-precision floating-point number
47** the  value represented by the character string pointed to by
48** s00. The string is scanned up to the first unrecognized
49** character.
50**a
51** If the value of se is not (char **)NULL, a  pointer  to
52** the  character terminating the scan is returned in the location pointed
53** to by se. If no number can be formed, se is set to s00, and
54** zero is returned.
55*/
56#if defined(HAVE_WATCOM_BUG_1)
57/* this is a hack to circumvent a bug in the Watcom C/C++ 11.0 compiler
58** When Watcom fixes the bug, remove the special case for Win16
59*/
60PRFloat64 __pascal __loadds __export
61#else
62NSPR_API(PRFloat64)
63#endif
64PR_strtod(const char *s00, char **se);
65
66/*
67** PR_cnvtf()
68** conversion routines for floating point
69** prcsn - number of digits of precision to generate floating
70** point value.
71*/
72NSPR_API(void) PR_cnvtf(char *buf, PRIntn bufsz, PRIntn prcsn, PRFloat64 fval);
73
74/*
75** PR_dtoa() converts double to a string.
76**
77** ARGUMENTS:
78** If rve is not null, *rve is set to point to the end of the return value.
79** If d is +-Infinity or NaN, then *decpt is set to 9999.
80**
81** mode:
82**     0 ==> shortest string that yields d when read in
83**           and rounded to nearest.
84*/
85NSPR_API(PRStatus) PR_dtoa(PRFloat64 d, PRIntn mode, PRIntn ndigits,
86	PRIntn *decpt, PRIntn *sign, char **rve, char *buf, PRSize bufsize);
87
88PR_END_EXTERN_C
89
90#endif /* prdtoa_h___ */