NAME

iswctype — test a character for character class identifier

LIBRARY

Standard C Library (libc, -lc)

SYNOPSIS

#include <wctype.h>

int
iswctype(wint_t wc, wctype_t charclass);

DESCRIPTION

The iswctype() function returns a boolean value that indicates whether a wide character wc is in charclass.

The behaviour of iswctype() is undefined if the iswctype() function is called with an invalid charclass (changes of LC_CTYPE category invalidate charclass) or invalid wide character wc.

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

RETURN VALUES

The iswctype() returns:

0

wc is not in charclass.

non-zero

wc is in charclass.

ERRORS

No errors are defined.

SEE ALSO

setlocale(3), towctrans(3), wctrans(3), wctype(3)

STANDARDS

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