Standard C Library (libc, -lc)

SYNOPSIS

     #include <wchar.h>

     int
     wcswidth(const wchar_t *pwcs, size_t n);

     #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 charac-
     ter (L'\0') is encountered.

     While the wcswidth() function uses the current locale, the wcswidth_l()
     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 IEEE Std 1003.1-2001 (``POSIX.1'').

BSD                             August 20, 2002                            BSD