From: Sander Land <sander.land@...>
Date: 2006-07-02T17:55:07+09:00
Subject: Re: [QUIZ] C-Style Ints (#85) - not a spoiler, a test harness

On 7/2/06, Daniel Martin <martin@snowplow.org> wrote:
> I do take issue with one of your tests, though:
> ...
> That just feels wrong. (except for the last one)  I would write:
> def test_power
>  ...
> end

Agreed, the test put way too much focus on fixnum ** fwi.
This was because my implementation first assumed any binary operation
was commutative (it just switched both operands if the first was a
fixnum), so 2 ** uint3.new(1) was uint3.new(1)**2=1, and the test was
there to help me fix this.

> And maybe:
>   assert_equal(8, 2 ** uint3.new(67))
> ...
> I really think that you want to keep exponentiation looking like
> repeated multiplication of the first argument.

And i really think the result should be a fwi, for consistency with
multiplication ('repeated addition').
Anyway, in my implementation 2 ** uint3.new(67).to_i == 8, so there's
still a way to get those calculations done as well.