(bitcount)
return ~(~0 << bitcount)
Returns the maximum (unsigned) integer representable in the given number
    of bits.
Returns the maximum (unsigned) integer representable in the given number
    of bits.
Returns the maximum ( unsigned ) integer representable in the given number of bits .
def max_value(bitcount):
    """Returns the maximum (unsigned) integer representable in the given number
    of bits.
    """

    return ~(~0 << bitcount)
def max_value ( bitcount ) : return ~ ( ~ 0 << bitcount )