linux man page for iswlower

Query: iswlower

OS: linux

Section: 3

Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar

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(3) 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 nonzero if wc is a wide character belonging to the wide-character class "lower". Otherwise it returns zero.
CONFORMING TO
C99.
NOTES
The behavior 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.
SEE ALSO
islower(3), iswctype(3), towlower(3)
COLOPHON
This page is part of release 3.27 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.
GNU
1999-07-25 ISWLOWER(3)
Related Man Pages
iswupper(3) - redhat
iswlower(3) - plan9
iswlower(3) - v7
iswlower(3) - minix
iswlower(3) - ultrix
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