.\"
.\" Copyright (c) 2004 Tim J. Robbins
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.\" $FreeBSD: src/lib/libc/locale/nextwctype.3,v 1.3 2005/07/21 10:27:45 tjr Exp $
.\"
.Dd July 21, 2005
.Dt NEXTWCTYPE 3
.Os
.Sh NAME
.Nm nextwctype ,
.Nm nextwctype_l
.Nd "iterate through character classes"
.Sh LIBRARY
.Lb libc
.Sh SYNOPSIS
.In wctype.h
.Ft wint_t
.Fn nextwctype "wint_t ch" "wctype_t wct"
.In xlocale.h
.Ft wint_t
.Fn nextwctype_l "wint_t ch" "wctype_t wct" "locale_t loc"
.Sh DESCRIPTION
The
.Fn nextwctype
function determines the next character after
.Fa ch
that is a member of character class
.Fa wct .
If
.Fa ch
is \-1, the search begins at the first member of
.Fa wct .
.Pp
While the
.Fn nextwctype
function uses the current locale, the
 .Fn nextwctype_l
function may be passed a locale directly. See
.Xr xlocale 3
for more information.
.Sh RETURN VALUES
The
.Fn nextwctype
function returns the next character, or \-1 if there are no more.
.Sh COMPATIBILITY
This function is a non-standard
.Fx
extension and should not be used where the standard
.Fn iswctype
function would suffice.
.Sh SEE ALSO
.Xr wctype 3 ,
.Xr xlocale 3
.Sh HISTORY
The
.Fn nextwctype
function appeared in
.Fx 5.4 .