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ISWXDIGIT

Section: Linux Programmer's Manual (3)
Updated: 2015-03-02
Index Return to Main Contents
 

NAME

iswxdigit - test for hexadecimal digit wide character  

SYNOPSIS

#include <wctype.h>

int iswxdigit(wint_t wc);
 

DESCRIPTION

The iswxdigit() function is the wide-character equivalent of the isxdigit(3) function. It tests whether wc is a wide character belonging to the wide-character class "xdigit".

The wide-character class "xdigit" is a subclass of the wide-character class "alnum", and therefore also a subclass 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 "xdigit" is disjoint from the wide-character class "cntrl".

Being a subclass of the wide-character class "graph", the wide-character class "xdigit" 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 "xdigit" is disjoint from the wide-character class "punct".

The wide-character class "xdigit" always contains at least the letters aqAaq to aqFaq, aqaaq to aqfaq and the digits aq0aq to aq9aq.  

RETURN VALUE

The iswxdigit() function returns nonzero if wc is a wide character belonging to the wide-character class "xdigit". Otherwise, it returns zero.  

ATTRIBUTES

For an explanation of the terms used in this section, see attributes(7).
InterfaceAttributeValue
iswxdigit() Thread safetyMT-Safe locale
 

CONFORMING TO

C99.  

NOTES

The behavior of iswxdigit() depends on the LC_CTYPE category of the current locale.  

SEE ALSO

iswctype(3), isxdigit(3)  

COLOPHON

This page is part of release 3.81 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at http://www.kernel.org/doc/man-pages/.


 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
ATTRIBUTES
CONFORMING TO
NOTES
SEE ALSO
COLOPHON


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