iswcntrl — test for control wide character
iswcntrl() function is
the wide-character equivalent of the iscntrl(3) function. It
wc is a
wide character belonging to the wide-character class
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
but not vice versa.
returns nonzero if
is a wide character belonging to the wide-character class
"cntrl". Otherwise, it returns zero.
For an explanation of the terms used in this section, see attributes(7).
||Thread safety||MT-Safe locale|
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