The wcstol function recognizes strings in various formats,
    depending on the value of the base. This function ignores any
    leading white-space characters (as defined by the iswspace
    function) in the given string. It recognizes an optional plus
    or minus sign, then a sequence of digits or letters that can
    represent an integer constant according to the value of the base.
    The first unrecognized character ends the conversion.