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+.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved
+.TH "WCTYPE" 3P 2003 "IEEE/The Open Group" "POSIX Programmer's Manual"
+.\" wctype
+.SH PROLOG
+This manual page is part of the POSIX Programmer's Manual.
+The Linux implementation of this interface may differ (consult
+the corresponding Linux manual page for details of Linux behavior),
+or the interface may not be implemented on Linux.
+.SH NAME
+wctype \- define character class
+.SH SYNOPSIS
+.LP
+\fB#include <wctype.h>
+.br
+.sp
+wctype_t wctype(const char *\fP\fIproperty\fP\fB);
+.br
+\fP
+.SH DESCRIPTION
+.LP
+The \fIwctype\fP() function is defined for valid character class names
+as defined in the current locale. The \fIproperty\fP
+argument is a string identifying a generic character class for which
+codeset-specific type information is required. The following
+character class names shall be defined in all locales:
+.TS C
+center; lw(26) lw(26) lw(26).
+T{
+\fB
+.br
+alnum
+.br
+alpha
+.br
+blank
+.br
+cntrl
+.br
+\fP
+T} T{
+\fB
+.br
+digit
+.br
+graph
+.br
+lower
+.br
+print
+.br
+\fP
+T} T{
+\fB
+.br
+punct
+.br
+space
+.br
+upper
+.br
+xdigit
+.br
+\fP
+T}
+.TE
+.LP
+Additional character class names defined in the locale definition
+file (category \fILC_CTYPE )\fP can also be specified.
+.LP
+The function shall return a value of type \fBwctype_t\fP, which can
+be used as the second argument to subsequent calls of \fIiswctype\fP().
+The \fIwctype\fP() function shall determine values of \fBwctype_t\fP
+according to the rules of the coded character set defined by character
+type information in the program's locale (category
+\fILC_CTYPE ).\fP The values returned by \fIwctype\fP() shall be valid
+until a call to \fIsetlocale\fP() that modifies the category \fILC_CTYPE
+\&.\fP
+.SH RETURN VALUE
+.LP
+The \fIwctype\fP() function shall return 0 if the given character
+class name is not valid for the current locale (category
+\fILC_CTYPE );\fP otherwise, it shall return an object of type \fBwctype_t\fP
+that can be used in calls to \fIiswctype\fP().
+.SH ERRORS
+.LP
+No errors are defined.
+.LP
+\fIThe following sections are informative.\fP
+.SH EXAMPLES
+.LP
+None.
+.SH APPLICATION USAGE
+.LP
+None.
+.SH RATIONALE
+.LP
+None.
+.SH FUTURE DIRECTIONS
+.LP
+None.
+.SH SEE ALSO
+.LP
+\fIiswctype\fP(), the Base Definitions volume of IEEE\ Std\ 1003.1-2001,
+\fI<wctype.h>\fP
+.SH COPYRIGHT
+Portions of this text are reprinted and reproduced in electronic form
+from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
+-- Portable Operating System Interface (POSIX), The Open Group Base
+Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
+Electrical and Electronics Engineers, Inc and The Open Group. In the
+event of any discrepancy between this version and the original IEEE and
+The Open Group Standard, the original IEEE and The Open Group Standard
+is the referee document. The original Standard can be obtained online at
+http://www.opengroup.org/unix/online.html .