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wcswidth(3) -- Linux man page
NAME
wcswidth - determine columns needed for a fixed-size wide character string
SYNOPSIS
#include <wchar.h>
int wcswidth(const wchar_t *s, size_t n);
DESCRIPTION
The wcswidth function returns the number of columns needed to represent
the wide-character string pointed to by s, but at most n wide
characters. If a non-printable wide character occurs among these characters,
-1 is returned.
RETURN VALUE
The wcswidth function returns the number of column positions for the
wide-character string s, truncated to at most length n.
CONFORMING TO
UNIX98
SEE ALSO
wcwidth(3),
iswprint(3)
NOTES
The behaviour of wcswidth depends on the LC_CTYPE category of the
current locale.
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