NAME
wcswidth
- number of column positions in wide-character string
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
int
wcswidth(
const wchar_t *pwcs
, size_t n
)
DESCRIPTION
The
wcswidth(
)
function determines the number of column positions required for the first
n
characters of
pwcs
,
or until a nul wide character (L'\0') is encountered.
RETURN VALUES
The
wcswidth(
)
function returns 0 if
pwcs
is an empty string (L""),
-1 if a non-printing wide character is encountered,
otherwise it returns the number of column positions occupied.
SEE ALSO
iswprint(3),
wcwidth(3)
STANDARDS
The
wcswidth(
)
function conforms to
IEEE Std 1003.1-2001 (``POSIX.1'') .