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Command: wcwidth | Section: 3 | Source: OpenBSD | File: wcwidth.3
WCWIDTH(3) FreeBSD Library Functions Manual WCWIDTH(3)
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 the NUL wide
character (L'\0'), -1 if wc is not printable, or otherwise it returns the
number of column positions the character occupies, which may be 0, 1, or
2.
SEE ALSO
iswprint(3), wcswidth(3)
STANDARDS
The wcwidth() function conforms to IEEE Std 1003.1-2001 ("POSIX.1").
FreeBSD 14.1-RELEASE-p8 September 2, 2016 FreeBSD 14.1-RELEASE-p8