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



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  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(r) and differ-
       ent from towupper(r).

       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(r), iswctype(e), towlower(r)

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(R)