'self // other'

def __floordiv__(self, other, context=None):

    other = _convert_other(other)
    if (other is NotImplemented):
        return other
    if (context is None):
        context = getcontext()
    ans = self._check_nans(other, context)
    if ans:
        return ans
    if self._isinfinity():
        if other._isinfinity():
            return context._raise_error(InvalidOperation, 'INF    //    INF')
        else:
            return _SignedInfinity[(self._sign ^ other._sign)]
    if (not other):
        if self:
            return context._raise_error(DivisionByZero, 'x    //    0', (self._sign ^ other._sign))
        else:
            return context._raise_error(DivisionUndefined, '0    //    0')
    return self._divide(other, context)[0]
