NAME
iswctype —
test a character for character class
identifier
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 the
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 the
iswctype()
is affected by the LC_CTYPE category of the current
locale.
RETURN VALUES
The iswcttype() returns:
- 0
- wc is not in charclass.
- non-zero
- wc is in charclass.
ERRORS
No errors are defined.
SEE ALSO
STANDARDS
The iswctype() function conforms to
ISO/IEC 9899/AMD1:1995 (“ISO C90, Amendment 1”).