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   wctype    ( 3 )

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Имя (Name)

wctype - wide-character classification

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Синопсис (Synopsis)

#include <wctype.h>

       wctype_t wctype(const char *name);

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Описание (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

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Возвращаемое значение (Return value)

The wctype() function returns a property descriptor if the name
       is valid.  Otherwise, it returns (wctype_t) 0.

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Атрибуты (Attributes)

For an explanation of the terms used in this section, see
       attributes(7).

       ┌───────────────────────────────┬───────────────┬────────────────┐
       │Interface                      │ Attribute     │ Value          │
       ├───────────────────────────────┼───────────────┼────────────────┤
       │wctype()                       │ Thread safety │ MT-Safe locale │
       └───────────────────────────────┴───────────────┴────────────────┘

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Стандарты (Conforming to)

POSIX.1-2001, POSIX.1-2008, C99.

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Примечание (Note)

The behavior of wctype() depends on the LC_CTYPE category of the
       current locale.

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Смотри также (See also)

iswctype(3)

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