wctype(3C) Standard C Library Functions wctype(3C)
NAME
wctype - define character class
SYNOPSIS
#include <wchar.h>
wctype_t wctype(const char *charclass);
DESCRIPTION
The wctype() function is defined for valid character class names as defined in the current locale. The charclass is a string identifying a
generic character class for which codeset-specific type information is required. The following character class names are defined in all
locales:
alnum alpha blank
cntrl digit graph
lower print punct
space upper xdigit
Additional character class names defined in the locale definition file (category LC_CTYPE) can also be specified.
The function returns a value of type wctype_t, which can be used as the second argument to subsequent calls of iswctype(3C). wctype()
determines values of wctype_t according to the rules of the coded character set defined by character type information in the program's
locale (category LC_CTYPE). The values returned by wctype() are valid until a call to setlocale(3C) that modifies the category LC_CTYPE.
RETURN VALUES
The wctype() function returns 0 if the given character class name is not valid for the current locale (category LC_CTYPE); otherwise it
returns an object of type wctype_t that can be used in calls to iswctype().
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
|ATTRIBUTE TYPE |ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|CSI |Enabled |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe with exceptions |
+-----------------------------+-----------------------------+
SEE ALSO
iswctype(3C), setlocale(3C), attributes(5), standards(5)
SunOS 5.11 14 Aug 2002 wctype(3C)
