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iswdigit(3) [bsd man page]

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

NAME
iswdigit - test for decimal digit wide character SYNOPSIS
#include <wctype.h> int iswdigit(wint_t wc); DESCRIPTION
The iswdigit() function is the wide-character equivalent of the isdigit(3) function. It tests whether wc is a wide character belonging to the wide-character class "digit". The wide-character class "digit" is a subclass of the wide-character class "xdigit", 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 "digit" is disjoint from the wide-character class "cntrl". Being a subclass of the wide-character class "graph", the wide-character class "digit" 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 "digit" is disjoint from the wide-character class "punct". The wide-character class "digit" is disjoint from the wide-character class "alpha" and therefore also disjoint from its subclasses "lower", "upper". The wide-character class "digit" always contains exactly the digits '0' to '9'. RETURN VALUE
The iswdigit() function returns nonzero if wc is a wide character belonging to the wide-character class "digit". Otherwise, it returns zero. ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7). +-----------+---------------+----------------+ |Interface | Attribute | Value | +-----------+---------------+----------------+ |iswdigit() | Thread safety | MT-Safe locale | +-----------+---------------+----------------+ CONFORMING TO
POSIX.1-2001, POSIX.1-2008, C99. NOTES
The behavior of iswdigit() depends on the LC_CTYPE category of the current locale. SEE ALSO
isdigit(3), iswctype(3) COLOPHON
This page is part of release 4.15 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 https://www.kernel.org/doc/man-pages/. GNU
2015-08-08 ISWDIGIT(3)

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

NAME
iswdigit - test for decimal digit wide character SYNOPSIS
#include <wctype.h> int iswdigit(wint_t wc); DESCRIPTION
The iswdigit function is the wide-character equivalent of the isdigit function. It tests whether wc is a wide character belonging to the wide character class "digit". The wide character class "digit" is a subclass of the wide character class "xdigit", 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 "digit" is disjoint from the wide character class "cntrl". Being a subclass of the wide character class "graph", the wide character class "digit" 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 "digit" is disjoint from the wide character class "punct". The wide character class "digit" is disjoint from the wide character class "alpha" and therefore also disjoint from its subclasses "lower", "upper". The wide character class "digit" always contains exactly the digits '0' to '9'. RETURN VALUE
The iswdigit function returns non-zero if wc is a wide character belonging to the wide character class "digit". Otherwise it returns zero. CONFORMING TO
ISO/ANSI C, UNIX98 SEE ALSO
isdigit(3), iswctype(3) NOTES
The behaviour of iswdigit depends on the LC_CTYPE category of the current locale. GNU
1999-07-25 ISWDIGIT(3)
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