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ISWCTYPE(3) Library Functions Manual ISWCTYPE(3)

iswctypetest a character for character class identifier

#include <wctype.h>

iswctype(wint_t wc, wctype_t charclass);

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

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

The iswcttype() returns:

wc is not in charclass.
wc is in charclass.

No errors are defined.

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

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

November 30, 2014 OpenBSD-6.1