WCWIDTH(3) Linux Programmer's Manual WCWIDTH(3)
NAME
wcwidth - determine columns needed for a wide character
SYNOPSIS
#include <wchar.h>
int wcwidth (wint_t c);
DESCRIPTION
The wcwidth function returns the number of columns needed
to represent the wide character c. If c is a printable
wide character, the value is at least 0. If c is L'\0',
the value is 0. Otherwise -1 is returned.
RETURN VALUE
The wcwidth function returns the number of column posi-
tions for c.
CONFORMING TO
UNIX98
SEE ALSO
wcswidth(3), iswprint(3)
NOTES
The behaviour of wcwidth depends on the LC_CTYPE category
of the current locale.
GNU July 25, 1999 1