iswblank — test for whitespace wide character
#include <wctype.h>
int
iswblank( |
wint_t | wc) ; |
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'.
The iswblank
() function
returns non-zero if wc
is a wide character
belonging to the wide-character class "blank". Otherwise it
returns zero.
The behaviour of iswblank
()
depends on the LC_CTYPE category of the current locale.
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