wcswidth(3C) Standard C Library Functions wcswidth(3C)
NAME
wcswidth - number of column positions of a wide-character string
SYNOPSIS
#include <wchar.h>
int wcswidth(const wchar_t *pwcs, size_t n);
DESCRIPTION
The wcswidth() function determines the number of column positions required for n wide-character codes (or fewer than n wide-character codes
if a null wide-character code is encountered before n wide-character codes are exhausted) in the string pointed to by pwcs.
RETURN VALUES
The wcswidth() function either returns 0 (if pwcs points to a null wide-character code), or returns the number of column positions to be
occupied by the wide-character string pointed to by pwcs, or returns -1 (if any of the first n wide-character codes in the wide-character
string pointed to by pwcs is not a printing wide-character code).
ERRORS
No errors are defined.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|CSI |Enabled |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe with exceptions |
+-----------------------------+-----------------------------+
SEE ALSO
setlocale(3C), wcwidth(3C), attributes(5), standards(5)
SunOS 5.10 14 Aug 2002 wcswidth(3C)