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.\" Copyright (c) Bruno Haible <haible@clisp.cons.org>
.\"
.\" This is free documentation; you can redistribute it and/or
.\" modify it under the terms of the GNU General Public License as
.\" published by the Free Software Foundation; either version 2 of
.\" the License, or (at your option) any later version.
.\"
.\" References consulted:
.\" GNU glibc-2 source code and manual
.\" Dinkumware C library reference http://www.dinkumware.com/
.\" OpenGroup's Single Unix specification
.\" http://www.UNIX-systems.org/online.html
.\" ISO/IEC 9899:1999
.\"
.\" Japanese Version Copyright (c) 1999 HANATAKA Shinya
.\" all rights reserved.
.\" Translated Tue Jan 11 00:56:16 JST 2000
.\" by HANATAKA Shinya <hanataka@abyss.rim.or.jp>
.\" Updated Thu Dec 13 JST 2001 by Kentaro Shirakata <argrath@ub32.org>
.\"
.TH MBRTOWC 3 2001-11-22 "GNU" "Linux Programmer's Manual"
.SH ̾
mbrtowc \- ޥХ磻ʸѴ
.SH
.nf
.B #include <wchar.h>
.sp
.BI "size_t mbrtowc(wchar_t *" pwc ", const char *" s ", size_t " n ", mbstate_t *" ps );
.fi
.SH
δؿѤ硢̾ \fIs\fP NULL Ǥʤ \fIpwc\fP NULL
ʤξϡ
.BR mbrtowc ()
ؿ \fIs\fP Ϥޤ \fIn\fP ХȤ
ޥХʸơδʥޥХʸФ
磻ʸѴ \fI*pwc\fP ˳Ǽ롣
Ʊ˥եȾ \fI*ps\fP 롣Ѵ磻ʸ L'\\0'
ʤС\fIs\fP Хȿ֤
Ѵ磻ʸ L'\\0' ξˤϥեȾ \fI*ps\fP
֤ᤷ 0 ֤
.PP
\fIs\fP Ϥޤ \fIn\fP ХȤʥޥХʸޤǤʤ
ˤϡ
.BR mbrtowc ()
\fI(size_t)\ \-2\fP ֤
ޥХʸ˾ĹʥեȥޤޤƤȡ
\fIn\fP >= \fIMB_CUR_MAX\fP λˤ⤳Τ褦ʤȤꤨ롣
.PP
\fIs\fP ϤޤޥХʸδʸ
ʥޥХޤǤˤϡ
.BR mbrtowc ()
\fI(size_t)\ \-1\fP ֤\fIerrno\fP \fBEILSEQ\fP ꤹ롣
ξ \fI*ps\fP ؤαƶ̤Ǥ롣
.PP
\fIs\fP NULL Ǥʤ \fIpwc\fP NULL ξ
.BR mbrtowc ()
ؿ
嵭Ʊͤư뤬Ѵ磻ʸϥˤϽޤʤ
.PP
puts \fI*ps\fP in the initial state and returns 0.
ܤξȤ \fIs\fP NULL ξ硢 \fIpwc\fP \fIn\fP
̵뤵롣
\fI*ps\fP ɽѴ֤ԴʥޥХʸѴƤϡ
.BR mbrtowc ()
ؿ \fI(size_t)\ \-1\fP ֤
\fIerrno\fP \fBEILSEQ\fP åȤ
\fI*ps\fP ̤֤Τޤޤˤ롣
ʤС
.BR mbrtowc ()
ؿ \fI*ps\fP ֤ˤ 0 ֤
.PP
嵭Ƥξˤơ\fIps\fP NULL ݥʤ
mbrtowc ؿΤߤѤŪ̾Τʤ֤Ѥ롣
ʤС\fI*ps\fP ͭ \fImbstate_t\fP ֥Ȥ
ʤФʤʤ
\fImbstate_t\fP ֥ȤǤ \fIa\fP ϥ뤳Ȥˤä
֤˽Ǥ롣ʲ
.sp
.in +4n
memset(&a, 0, sizeof(a));
.in
.SH ֤
L'\\0' ʳΥ磻ʸǧˤ
.BR mbrtowc ()
ؿ \fIs\fP
ϤޤޥХϤХȿ֤
L'\\0' 磻ʸǧˤ 0 ֤
ʥޥХˤ
.I (size_t)\ \-1
֤
\fIerrno\fP \fBEILSEQ\fP ꤹ롣ʥޥХʸ
ϤǤʤäˤ
.I (size_t)\ \-2
֤ \fIn\fP äɬפ뤳Ȥ
.SH
C99
.SH
.BR mbrtowc ()
ưϸߤΥ
.B LC_CTYPE
ƥ˰¸Ƥ롣
.SH Ϣ
.BR mbsrtowcs (3)
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