iswspace — test for whitespace wide character
iswspace() function is
the wide-character equivalent of the isspace(3) function. It
wc is a
wide character belonging to the wide-character class
The wide-character class "space" 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 "space" contains the wide-character class "blank".
The wide-character class "space" always contains at least the space character and the control characters '\f', '\n', '\r', '\t', '\v'.
returns nonzero if
is a wide character belonging to the wide-character class
"space". 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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