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   iswblank    ( 3 )

тест на пробелы (test for whitespace wide character)

Имя (Name)

iswblank - test for whitespace wide character

Синопсис (Synopsis)

#include <wctype.h>

int iswblank(wint_t wc);

Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

iswblank(): _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L


Описание (Description)

The iswblank() function is the wide-character equivalent of the
       isblank(3) function.  It tests whether wc is a wide character
       belonging to the wide-character class "blank".

The wide-character class "blank" is a subclass of the wide- character class "space".

Being a subclass of the wide-character class "space", the wide- character class "blank" is disjoint from the wide-character class "graph" and therefore also disjoint from its subclasses "alnum", "alpha", "upper", "lower", "digit", "xdigit", "punct".

The wide-character class "blank" always contains at least the space character and the control character '\t'.


Возвращаемое значение (Return value)

The iswblank() function returns nonzero if wc is a wide character
       belonging to the wide-character class "blank".  Otherwise, it
       returns zero.

Атрибуты (Attributes)

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

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


Стандарты (Conforming to)

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

Примечание (Note)

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

Смотри также (See also)

isblank(3), iswctype(3)