wcswidth(3C) Standard C Library Functions wcswidth(3C)NAME
wcswidth - number of column positions of a wide-character string
SYNOPSIS
#include <wchar.h>
int wcswidth(const wchar_t *pwcs, size_t n);
DESCRIPTION
The wcswidth() function determines the number of column positions required for n wide-character codes (or fewer than n wide-character codes
if a null wide-character code is encountered before n wide-character codes are exhausted) in the string pointed to by pwcs.
RETURN VALUES
The wcswidth() function either returns 0 (if pwcs points to a null wide-character code), or returns the number of column positions to be
occupied by the wide-character string pointed to by pwcs, or returns -1 (if any of the first n wide-character codes in the wide-character
string pointed to by pwcs is not a printing wide-character code).
ERRORS
No errors are defined.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|CSI |Enabled |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe with exceptions |
+-----------------------------+-----------------------------+
SEE ALSO setlocale(3C), wcwidth(3C), attributes(5), standards(5)SunOS 5.10 14 Aug 2002 wcswidth(3C)
Check Out this Related Man Page
WCSWIDTH(3) BSD Library Functions Manual WCSWIDTH(3)NAME
wcswidth, wcswidth_l -- number of column positions in wide-character string
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <wchar.h>
int
wcswidth(const wchar_t *pwcs, size_t n);
#include <wchar.h>
#include <xlocale.h>
int
wcswidth_l(const wchar_t *pwcs, size_t n, locale_t loc);
DESCRIPTION
The wcswidth() function determines the number of column positions required for the first n characters of pwcs, or until a null wide character
(L' ') is encountered.
Although the wcswidth() function uses the current locale, the wcswidth_l() function may be passed a locale directly. See xlocale(3) for more
information.
RETURN VALUES
The wcswidth() function returns 0 if pwcs is an empty string (L""), -1 if a non-printing wide character is encountered; otherwise, it returns
the number of column positions occupied.
SEE ALSO iswprint(3), wcwidth(3), xlocale(3)STANDARDS
The wcswidth() function conforms to IEEE Std 1003.1-2001 (``POSIX.1'').
BSD August 20, 2002 BSD
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Looks a simple, but I don't know the most economic way.
I tried to merge, and cat function, but not success!!
Ex.)
file 1
1 2 3
2 3 4
file 2
3 4 5
4 5 6
file 3
2 3 4
1 2 7
I would like to see the result below
file 4
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