WCSWIDTH(3)              BSD Library Functions Manual              WCSWIDTH(3)

NAME
     wcswidth, wcswidthl -- number of column positions in wide-character
     string

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     ##include <>

     int
     wcswidth(const wchart *pwcs, sizet n);

     ##include <>

     int
     wcswidthl(const wchart *pwcs, sizet n, localet loc);

DESCRIPTION
     The wcswidth() function determines the number of column positions
     required for the first n characters of pwcs, or until a null wide charac-
     ter (L'\0') is encountered.

     While the wcswidth() function uses the current locale, the wcswidthl()
     function may be passed a locale directly. See xlocale(3) for more infor-
     mation.

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 IE Std 1003.1-2001 (``POSIX.1'').

BSD                             August 20, 2002                            BSD