'\" te
.\" Copyright (c) 1996, Sun Microsystems, Inc.  All Rights Reserved.
.\" The contents of this file are subject to the terms of the Common Development and Distribution License (the "License").  You may not use this file except in compliance with the License.
.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing.  See the License for the specific language governing permissions and limitations under the License.
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.TH CSET 3C "Nov 16, 2003"
.SH NAME
cset, csetlen, csetcol, csetno, wcsetno \- get information on EUC codesets
.SH SYNOPSIS
.LP
.nf
#include <euc.h>

\fBint\fR \fBcsetlen\fR(\fBint\fR \fIcodeset\fR);
.fi

.LP
.nf
\fBint\fR \fBcsetcol\fR(\fBint\fR \fIcodeset\fR);
.fi

.LP
.nf
\fBint\fR \fBcsetno\fR(\fBunsigned char\fR \fIc\fR);
.fi

.LP
.nf
#include <widec.h>

\fBint\fR \fBwcsetno\fR(\fBwchar_t\fR \fIpc\fR);
.fi

.SH DESCRIPTION
.sp
.LP
Both \fBcsetlen()\fR and \fBcsetcol()\fR take a code set number  \fIcodeset\fR,
which must be 0, 1, 2, or 3. The \fBcsetlen()\fR function returns the number of
bytes needed to represent a character of the given Extended Unix Code (EUC)
code set, excluding the single-shift characters SS2 and SS3 for codesets 2 and
3. The \fBcsetcol()\fR function returns the number of columns a character in
the given \fBEUC\fR code set would take on the display.
.sp
.LP
The \fBcsetno()\fR function is implemented as a macro that returns a codeset
number (0, 1, 2, or 3) for the \fBEUC\fR character whose first byte is \fIc\fR.
For example,
.sp
.in +2
.nf
#include<euc.h>
\|.\|.\|.
x+=csetcol(csetno(c));
.fi
.in -2

.sp
.LP
increments a counter "x" (such as the cursor position) by the width of the
character whose first byte is \fIc\fR.
.sp
.LP
The \fBwcsetno()\fR function is implemented as a macro that returns a codeset
number (0, 1, 2, or 3) for the given process code character \fIpc\fR. For
example,
.sp
.in +2
.nf
#include<euc.h>
#include<widec.h>
\|.\|.\|.
x+=csetcol(wcsetno(pc));
.fi
.in -2

.sp
.LP
increments a counter "x" (such as the cursor position) by the width of the
Process Code character \fIpc\fR.
.SH USAGE
.sp
.LP
These functions work only for the EUC locales.
.sp
.LP
The \fBcset()\fR, \fBcsetlen()\fR, \fBcsetcol()\fR, \fBcsetno()\fR, and
\fBwcsetno()\fR functions can be used safely in multithreaded applications, as
long as \fBsetlocale\fR(3C) is not being called to change the locale.
.SH ATTRIBUTES
.sp
.LP
See \fBattributes\fR(5) for descriptions of the following attributes:
.sp

.sp
.TS
box;
c | c
l | l .
ATTRIBUTE TYPE	ATTRIBUTE VALUE
_
MT-Level	MT-Safe with exceptions
.TE

.SH SEE ALSO
.sp
.LP
\fBsetlocale\fR(3C) \fBeuclen\fR(3C), \fBattributes\fR(5)