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-'\" t
-.\" Copyright (c) Bruno Haible <haible@clisp.cons.org>
-.\"
-.\" SPDX-License-Identifier: GPL-2.0-or-later
-.\"
-.\" 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
-.\"
-.TH iswalnum 3 (date) "Linux man-pages (unreleased)"
-.SH NAME
-iswalnum \- test for alphanumeric wide character
-.SH LIBRARY
-Standard C library
-.RI ( libc ", " \-lc )
-.SH SYNOPSIS
-.nf
-.B #include <wctype.h>
-.PP
-.BI "int iswalnum(wint_t " wc );
-.fi
-.SH DESCRIPTION
-The
-.BR iswalnum ()
-function is the wide-character equivalent of the
-.BR isalnum (3)
-function.
-It tests whether
-.I wc
-is a wide character
-belonging to the wide-character class "alnum".
-.PP
-The wide-character class "alnum" is a subclass of the wide-character class
-"graph", and therefore also a subclass of the wide-character class "print".
-.PP
-Being a subclass of the wide-character class "print",
-the wide-character class
-"alnum" is disjoint from the wide-character class "cntrl".
-.PP
-Being a subclass of the wide-character class "graph",
-the wide-character class "alnum" is disjoint from
-the wide-character class "space" and its subclass "blank".
-.PP
-The wide-character class "alnum" is disjoint from the wide-character class
-"punct".
-.PP
-The wide-character class "alnum" is the union of the wide-character classes
-"alpha" and "digit".
-As such, it also contains the wide-character class
-"xdigit".
-.PP
-The wide-character class "alnum"
-always contains at least the letters
-\[aq]A\[aq] to \[aq]Z\[aq],
-\[aq]a\[aq] to \[aq]z\[aq],
-and the digits \[aq]0\[aq] to \[aq]9\[aq].
-.SH RETURN VALUE
-The
-.BR iswalnum ()
-function returns nonzero
-if
-.I wc
-is a wide character
-belonging to the wide-character class "alnum".
-Otherwise, it returns zero.
-.SH ATTRIBUTES
-For an explanation of the terms used in this section, see
-.BR attributes (7).
-.ad l
-.nh
-.TS
-allbox;
-lbx lb lb
-l l l.
-Interface Attribute Value
-T{
-.BR iswalnum ()
-T} Thread safety MT-Safe locale
-.TE
-.hy
-.ad
-.sp 1
-.SH STANDARDS
-C11, POSIX.1-2008.
-.SH HISTORY
-POSIX.1-2001, C99.
-.SH NOTES
-The behavior of
-.BR iswalnum ()
-depends on the
-.B LC_CTYPE
-category of the
-current locale.
-.SH SEE ALSO
-.BR isalnum (3),
-.BR iswctype (3)