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RedHat 9 (Linux i386) - man page for iswlower (redhat section 3)

ISWLOWER(3)			    Linux Programmer's Manual			      ISWLOWER(3)

NAME
       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 character 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 different 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 of the current locale.

       This function is not very appropriate for dealing with Unicode characters, because Unicode
       knows about three cases: upper, lower and title case.

GNU					    1999-07-25				      ISWLOWER(3)


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