WCTYPE(3)

NAME
wctype - get character class identifier by name

LIBRARY
libc

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 isoC-amd1.