wcwidth

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WCWIDTH(3)		  Linux Programmer’s Manual		   WCWIDTH(3)



NAME
       wcwidth - determine columns needed for a wide character

SYNOPSIS
       #include <wchar.h>

       int wcwidth(wchar_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 positions for c.

CONFORMING TO
       UNIX98, POSIX 1003.1-2001 Note that glibc before 2.2.5 used the proto-
       type
       int wcwidth(wint_t c);

SEE ALSO
       wcswidth(3), iswprint(3)

NOTES
       The behaviour of wcwidth depends on the LC_CTYPE category of the	 cur-
       rent locale.



GNU				  1999-07-25			   WCWIDTH(3)