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wctype

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wctype: wide-character classification

NAME

wctype - wide-character classification

SYNOPSIS

#include <wctype.h> wctype_t wctype(const char *name);

DESCRIPTION

The wctype_t 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 (wctype_t) 0 denotes an invalid property. Nonzero wctype_t values can be passed to the iswctype(3) function to actually test whether a given wide character has the property. The wctype() function returns a property, given by its name. The set of valid names depends on the LC_CTYPE 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

RETURN VALUE

The wctype() function returns a property descriptor if the name is valid. Otherwise it returns (wctype_t) 0.
CONFORMING TO
C99.
NOTES
The behavior of wctype() depends on the LC_CTYPE category of the current locale.

SEE ALSO

iswctype(3)

COLOPHON

This page is part of release 3.27 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at //www.kernel.org/doc/man-pages/. WCTYPE(3)
 
 
 

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