|WCSCSPN(3)||Library Functions Manual||WCSCSPN(3)|
wcscspn — span the
complement of a wide string
wchar_t *s, const wchar_t
wcscspn() function returns the number
of wide characters spanned.
wcscspn() function conforms to
ISO/IEC 9899:1999 (“ISO C99”)
and was first introduced in ISO/IEC 9899/AMD1:1995
(“ISO C90, Amendment 1”).
wcscspn() function was ported from
NetBSD and first appeared in
|June 5, 2013||OpenBSD-current|