тест для контроля широкого символа (test for control wide character)
Имя (Name)
iswcntrl - test for control wide character
Синопсис (Synopsis)
#include <wctype.h>
int iswcntrl(wint_t wc);
Описание (Description)
The iswcntrl() function is the wide-character equivalent of the
iscntrl(3) function. It tests whether wc is a wide character
belonging to the wide-character class "cntrl".
The wide-character class "cntrl" is disjoint from the wide-
character class "print" and therefore also disjoint from its
subclasses "graph", "alpha", "upper", "lower", "digit", "xdigit",
"punct".
For an unsigned char c, iscntrl(c) implies iswcntrl(btowc(c)),
but not vice versa.
Возвращаемое значение (Return value)
The iswcntrl() function returns nonzero if wc is a wide character
belonging to the wide-character class "cntrl". Otherwise, it
returns zero.
Атрибуты (Attributes)
For an explanation of the terms used in this section, see
attributes(7).
┌───────────────────────────────┬───────────────┬────────────────┐
│Interface │ Attribute │ Value │
├───────────────────────────────┼───────────────┼────────────────┤
│iswcntrl() │ Thread safety │ MT-Safe locale │
└───────────────────────────────┴───────────────┴────────────────┘
Стандарты (Conforming to)
POSIX.1-2001, POSIX.1-2008, C99.
Примечание (Note)
The behavior of iswcntrl() depends on the LC_CTYPE category of
the current locale.
Смотри также (See also)
iscntrl(3), iswctype(3)
