iswlower - test for lowercase wide character
SYNOPSIS
#include <wctype.h>
int iswlower (wint_t wc);
DESCRIPTION
The iswlower function is the wide-character equivalent of
the islower function. It tests whether wc is a wide char
acter belonging to the wide character class "lower".
The wide character class "lower" is a subclass of the wide
character class "alpha", and therefore also a subclass of
the wide character class "alnum", of the wide character
class "graph" and of the wide character class "print".
Being a subclass of the wide character class "print", the
wide character class "lower" is disjoint from the wide
character class "cntrl".
Being a subclass of the wide character class "graph", the
wide character class "lower" is disjoint from the wide
character class "space" and its subclass "blank".
Being a subclass of the wide character class "alnum", the
wide character class "lower" is disjoint from the wide
character class "punct".
Being a subclass of the wide character class "alpha", the
wide character class "lower" is disjoint from the wide
character class "digit".
The wide character class "lower" contains at least those
characters wc which are equal to towlower(wc) and differ
ent from towupper(wc).
The wide character class "lower" always contains at least
the letters 'a' to 'z'.
RETURN VALUE
The iswlower function returns non-zero if wc is a wide
character belonging to the wide character class "lower".
Otherwise it returns zero.
CONFORMING TO
ISO/ANSI C, UNIX98
SEE ALSO
islower(3), iswctype(3), towlower(3)
NOTES
The behaviour of iswlower depends on the LC_CTYPE category
This function is not very appropriate for dealing with
Unicode characters, because Unicode knows about three
cases: upper, lower and title case.
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