wctype
Header: <wctype.h>
Constructs a value of type wctype_t that describes a LC_CTYPE category of wide character classification. It may be one of the standard classification categories, or a locale-specific category, such as “jkanji”.
# Declarations
wctype_t wctype( const char* str );
(since C95)
# Parameters
str: C string holding the name of the desired category
# Return value
wctype_t object suitable for use with iswctype to classify wide characters according to the named category of the current C locale or zero if str does not name a category supported by the current C locale.