iswctype(3) Library Functions Manual iswctype(3)

iswctype - wide-character classification

Standard C library (libc, -lc)

#include <wctype.h>
int iswctype(wint_t wc, wctype_t desc);

If wc is a wide character having the character property designated by desc (or in other words: belongs to the character class designated by desc), then the iswctype() function returns nonzero. Otherwise, it returns zero. If wc is WEOF, zero is returned.

desc must be a character property descriptor returned by the wctype(3) function.

The iswctype() function returns nonzero if the wc has the designated property. Otherwise, it returns 0.

For an explanation of the terms used in this section, see attributes(7).

Interface Attribute Value
iswctype () Thread safety MT-Safe

C11, POSIX.1-2008.

POSIX.1-2001, C99.

The behavior of iswctype() depends on the LC_CTYPE category of the current locale.

iswalnum(3), iswalpha(3), iswblank(3), iswcntrl(3), iswdigit(3), iswgraph(3), iswlower(3), iswprint(3), iswpunct(3), iswspace(3), iswupper(3), iswxdigit(3), wctype(3)

2024-05-02 Linux man-pages 6.9.1