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iswcntrl
Langue: en
Version: 1999-07-25 (ubuntu - 24/10/10)
Section: 3 (Bibliothèques de fonctions)
NAME
iswcntrl - test for control wide characterSYNOPSIS
#include <wctype.h> int iswcntrl(wint_t wc);
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.
RETURN VALUE
The iswcntrl() function returns nonzero if wc is a wide character belonging to the wide-character class "cntrl". Otherwise it returns zero.CONFORMING TO
C99.NOTES
The behavior of iswcntrl() depends on the LC_CTYPE category of the current locale.SEE ALSO
iscntrl(3), iswctype(3)COLOPHON
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