NAME

wctype — get character class identifier by name

LIBRARY

Standard C Library (libc, -lc)

SYNOPSIS

#include <wctype.h>

wctype_t
wctype(const char *charclass);

DESCRIPTION

The wctype() function returns a character class identifier corresponding to the locale-specific character class name charclass. This identifier can be used in subsequent calls of iswctype(). The following names are defined in all locales:

alnum alpha blank cntrl digit graph
lower print punct space upper xdigit

The behaviour of wctype() is affected by the LC_CTYPE category of the current locale.

RETURN VALUES

wctype() returns:

0

If charclass does not correspond to a valid character class name.

non-zero

A character class identifier corresponding to charclass.

Note: wctype_t is a scalar type, e.g., a pointer.

ERRORS

No errors are defined.

SEE ALSO

iswctype(3), setlocale(3), towctrans(3), wctrans(3)

STANDARDS

The wctype() function conforms to ISO/IEC 9899/AMD1:1995 (“ISO C90, Amendment 1”).