iswxdigit(3)                                               iswxdigit(3)

  iswxdigit()

  NAME

    iswxdigit() - hexadecimal-digit wide-character test

  SYNOPSIS

    #include 

    int iswxdigit (wint_t wc)

  DESCRIPTION

    The iswxdigit(3) function tests whether wc is a wide-character code of
    class xdigit in the program's current locale.

    In the POSIX locale, the character class xdigit includes only the
    characters:

    0 1 2 3 4 5 6 7 8 9 A B C D E F a b c d e f

  RETURN VALUES

    The iswxdigit(3) function returns zero if the wide-character tests false
    and returns non-zero if the wide-character tests true.

  SEE ALSO

    iswalnum(3)

    iswalpha(3)

    iswblank(3)

    iswcntrl(3)

    iswdigit(3)

    iswgraph(3)

    iswlower(3)

    iswprint(3)

    iswpunct(3)

    iswspace(3)

    iswupper(3)

    towlower(3)

    towupper(3)

  USAGE NOTES

    The iswxdigit function is thread safe.

    The iswxdigit function is not async-signal safe.