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.\" Copyright 1993 David Metcalfe (david@prism.demon.co.uk)
.\"
.\" Permission is granted to make and distribute verbatim copies of this
.\" manual provided the copyright notice and this permission notice are
.\" preserved on all copies.
.\"
.\" Permission is granted to copy and distribute modified versions of this
.\" manual under the conditions for verbatim copying, provided that the
.\" entire resulting derived work is distributed under the terms of a
.\" permission notice identical to this one.
.\"
.\" Since the Linux kernel and libraries are constantly changing, this
.\" manual page may be incorrect or out-of-date. The author(s) assume no
.\" responsibility for errors or omissions, or for damages resulting from
.\" the use of the information contained herein. The author(s) may not
.\" have taken the same level of care in the production of this manual,
.\" which is licensed free of charge, as they might when working
.\" professionally.
.\"
.\" Formatted or processed versions of this manual, if unaccompanied by
.\" the source, must acknowledge the copyright and authors of this work.
.\"
.\" References consulted:
.\" Linux libc source code
.\" Lewine's _POSIX Programmer's Guide_ (O'Reilly & Associates, 1991)
.\" 386BSD man pages
.\" Modified Sat Jul 24 19:40:39 1993 by Rik Faith (faith@cs.unc.edu)
.\" Modified Fri Jun 25 12:10:47 1999 by Andries Brouwer (aeb@cwi.nl)
.\"
.\" Japanese Version Copyright (c) 1997 Hiroaki Nagoya
.\" all rights reserved.
.\" Translated Mon Feb 10 1997 by Hiroaki Nagoya <nagoya@is.titech.ac.jp>
.\" Updated 2000-01-08 by Kentaro Shirakata <argrath@ub32.org>
.\" Updated 2009-04-22 by Kentaro Shirakata <argrath@ub32.org>
.\"
.TH ECVT 3 2009-03-15 "" "Linux Programmer's Manual"
.SH ̾
ecvt, fcvt \- ưʸؤѴ
.SH
.B #include <stdlib.h>
.sp
.BI "char *ecvt(double " number ", int " ndigits ", int *" decpt ,
.BI "int *" sign );
.sp
.BI "char *fcvt(double " number ", int " ndigits ", int *" decpt ,
.BI "int *" sign );
.sp
.in -4n
glibc εǽޥ
.RB ( feature_test_macros (7)
):
.in
.sp
.BR ecvt (),
.BR fcvt ():
_SVID_SOURCE || _XOPEN_SOURCE\ >=\ 500
.SH
ؿ
.BR ecvt ()
\fInumber\fP NUL ʸǽü줿
\fIndigits\fP ʸʸѴʸؤΥݥ֤
(\fIndigits\fP
.I double
٤ˤäƷꤵ륷ƥ¸ξͤ礭ϡ
ξͤ \fIndigits\fP ͤȤʤ)
.I number
0 ǤʤСǾ̤η 0 ʳǤ롣
Dz̤ηϴݤ롣
ʸˤϾϴޤޤʤΤˡʸƬξ
֤ \fI*decpt\fP ݻ롣
\fI*decpt\fP ͤξ硢ʸƬκ¦ˤ뤳Ȥ̣롣
⤷(\fInumber\fP)椬ʤ \fI*sign\fP 0 ʳͤˡ
Ǥʤ 0 ꤵ롣
.I number
0 ʤ顢\fI*decpt\fP 0 1 ̤Ǥ롣
.PP
ؿ
.BR fcvt ()
.BR ecvt ()
ƱǽĤ\fIndigits\fP Ͼʲʸꤹ롣
.SH ֤
ؿ
.BR ecvt ()
.BR fcvt ()
\fInumber\fP ASCII ɽޤ
ŪΰʸؤΥݥ֤
ʸ
.BR ecvt ()
.BR fcvt ()
θƤӽФΤӤ˾롣
.SH
SVr2
POSIX.1-2001 Ǥϡֲ̾ (LEGACY)פȰդƤ롣
POSIX.1-2008 Ǥ
.BR ecvt ()
.BR fcvt ()
λͤ졢
.BR sprintf (3)
λѤ侩Ƥ(
.BR snprintf (3)
Ŭڤ⤷ʤ)
.SH
Linux libc4 libc5 Ǥ
.I ndigits
η
.I size_t
ȤʤäƤ
˥ԥꥪɤȤʤ⤢롣
.SH Ϣ
.BR ecvt_r (3),
.BR gcvt (3),
.BR qecvt (3),
.BR setlocale (3),
.BR sprintf (3)
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