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Linux Programmer's Manual (3)
wctype - wide-character classification
wctype_t wctype(const char *name);
type represents a property which a wide character may or
may not have.
In other words, it represents a class of wide characters.
This type's nature is implementation-dependent, but the special value
denotes an invalid property.
can be passed to the
to actually test whether a given
wide character has the property.
function returns a property, given by its name.
The set of
valid names depends on the
category of the current locale, but the
following names are valid in all locales.
"alnum" - realizes the isalnum(3) classification function
"alpha" - realizes the isalpha(3) classification function
"blank" - realizes the isblank(3) classification function
"cntrl" - realizes the iscntrl(3) classification function
"digit" - realizes the isdigit(3) classification function
"graph" - realizes the isgraph(3) classification function
"lower" - realizes the islower(3) classification function
"print" - realizes the isprint(3) classification function
"punct" - realizes the ispunct(3) classification function
"space" - realizes the isspace(3) classification function
"upper" - realizes the isupper(3) classification function
"xdigit" - realizes the isxdigit(3) classification function
function returns a property descriptor
Otherwise, it returns
Multithreading (see pthreads(7))
function is thread-safe with exceptions.
It can be safely used in multithreaded applications, as long as
is not called to change the locale during its execution.
The behavior of
depends on the
category of the
This page is part of release 3.66 of the Linux
A description of the project,
information about reporting bugs,
and the latest version of this page,
can be found at
- RETURN VALUE
- Multithreading (see pthreads(7))
- CONFORMING TO
- SEE ALSO
This document was created by
using the manual pages.
Time: 21:43:03 GMT, July 12, 2014