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 to display the
wide character wc.
RETURN VALUES
The wcwidth() function returns 0 if the
wc argument is a null wide character (L'\0'), -1 if
wc is not printable, otherwise it returns the number
of column positions the character occupies.
SEE ALSO
STANDARDS
The wcwidth() function conforms to
IEEE Std 1003.1-2001 (“POSIX.1”).