wcwidth(3C)
NAME
wcwidth − number of column positions of a wide-character code
SYNOPSIS
#include <wchar.h> int wcwidth (wchar_t wc);
DESCRIPTION
The wcwidth() function determines the number of column positions required for the wide character wc. The value of wc must be a character representable as a wchar_t, and must be a wide-character code corresponding to a valid character in the current locale.
RETURN VALUES
The wcwidth() function either returns 0 (if wc is a null wide-character code), or returns the number of column positions to be occupied by the wide-character code wc, or returns −1 (if wc does not correspond to a printing wide-character code).
ERRORS
No errors are defined.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
| MT-Level | MT-Safe with exceptions |
| CSI | Enabled |
SEE ALSO
setlocale(3C), wcswidth(3C), attributes(5)
SunOS 5.6 — Last change: 20 Dec 1996