NAME
wctype, wctype_l
— get a character class
identifier by name
SYNOPSIS
#include
<wctype.h>
wctype_t
wctype(const
char *charclass);
wctype_t
wctype_l(const
char *charclass, locale_t
locale);
DESCRIPTION
These functions return a character class identifier corresponding
to the locale-specific character class name charclass.
This identifier can be used in subsequent calls of
iswctype()
or
iswctype_l(),
respectively.
The following names are defined in all locales:
alnum alpha blank cntrl digit graph lower print punct space upper xdigit
The function
wctype_l()
uses the specified locale, whereas
wctype()
uses the thread-specific locale set with
uselocale(3), falling back to the global locale set with
setlocale(3).
RETURN VALUES
These functions return the character class identifier, or (wctype_t)0 if charclass does not correspond to a valid character class name.
SEE ALSO
STANDARDS
The wctype() function conforms to
ISO/IEC 9899/AMD1:1995 (“ISO C90, Amendment
1”), and wctype_l() to
IEEE Std 1003.1-2008 (“POSIX.1”).
HISTORY
The wctype() function has been available
since OpenBSD 3.8, and
wctype_l() since OpenBSD
6.2.