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 val- ues 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 Multithreading (see pthreads(7)) The wctype() function is thread-safe with exceptions. It can be safely used in multithreaded applications, as long as setlocale(3) is not called to change the locale during its execution. CONFORMING TO C99. NOTES The behavior of wctype() depends on the LC_CTYPE category of the cur- rent locale. SEE ALSO iswctype(3) COLOPHON This page is part of release 3.74 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/. GNU 2014-01-22 WCTYPE(3)
Czas wygenerowania: 0.00016 sek.
Created with the man page lookup class by Andrew Collington.
Based on a C man page viewer by Vadim Pavlov
Unicode soft-hyphen fix (as used by RedHat) by Dan Edwards
Some optimisations by Eli Argon
Caching idea and code contribution by James Richardson
Copyright © 2003-2023 Linux.pl
Hosted by Hosting Linux.pl