User  |  Syst  |  Libr  |  Device  |  Files  |  Other  |  Admin  |  Head  |

---

   iswcntrl    ( 3 )

---

---

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)

---