Visit Our UNIX and Linux User Community

Linux and UNIX Man Pages

Test Your Knowledge in Computers #109
Difficulty: Easy
The Unix shell is the interface between the user and the kernel.
True or False?
Linux & Unix Commands - Search Man Pages

iswctype(3) [bsd man page]

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

NAME
iswctype - wide-character classification SYNOPSIS
#include <wctype.h> int iswctype(wint_t wc, wctype_t desc); DESCRIPTION
If wc is a wide character having the character property designated by desc (or in other words: belongs to the character class designated by desc), the iswctype() function returns nonzero. Otherwise, it returns zero. If wc is WEOF, zero is returned. desc must be a character property descriptor returned by the wctype(3) function. RETURN VALUE
The iswctype() function returns nonzero if the wc has the designated property. Otherwise, it returns 0. ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7). +-----------+---------------+---------+ |Interface | Attribute | Value | +-----------+---------------+---------+ |iswctype() | Thread safety | MT-Safe | +-----------+---------------+---------+ CONFORMING TO
POSIX.1-2001, POSIX.1-2008, C99. NOTES
The behavior of iswctype() depends on the LC_CTYPE category of the current locale. SEE ALSO
iswalnum(3), iswalpha(3), iswblank(3), iswcntrl(3), iswdigit(3), iswgraph(3), iswlower(3), iswprint(3), iswpunct(3), iswspace(3), iswup- per(3), iswxdigit(3), wctype(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 ISWCTYPE(3)

Check Out this Related Man Page

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

NAME
wctype - wide-character classification SYNOPSIS
#include <wctype.h> wctype_t wctype(const char *name); DESCRIPTION
The wctype_t type represents a property which a wide character may or may not have. In other words, it represents a class of wide charac- ters. This type's nature is implementation-dependent, but the special value (wctype_t) 0 denotes an invalid property. Nonzero wctype_t values can be passed to the iswctype(3) function to actually test whether a given wide character has the property. The wctype() function returns a property, given by its name. The set of valid names depends on the LC_CTYPE category of the current locale, but the following names are valid in all locales. "alnum" - realizes the isalnum(3) classification function "alpha" - realizes the isalpha(3) classification function "blank" - realizes the isblank(3) classification function "cntrl" - realizes the iscntrl(3) classification function "digit" - realizes the isdigit(3) classification function "graph" - realizes the isgraph(3) classification function "lower" - realizes the islower(3) classification function "print" - realizes the isprint(3) classification function "punct" - realizes the ispunct(3) classification function "space" - realizes the isspace(3) classification function "upper" - realizes the isupper(3) classification function "xdigit" - realizes the isxdigit(3) classification function RETURN VALUE
The wctype() function returns a property descriptor if the name is valid. Otherwise, it returns (wctype_t) 0. ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7). +----------+---------------+----------------+ |Interface | Attribute | Value | +----------+---------------+----------------+ |wctype() | Thread safety | MT-Safe locale | +----------+---------------+----------------+ CONFORMING TO
POSIX.1-2001, POSIX.1-2008, C99. NOTES
The behavior of wctype() depends on the LC_CTYPE category of the current locale. SEE ALSO
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 WCTYPE(3)

Featured Tech Videos