Re: [Scheme-reports] when and unless

[leppie <xacc.ide@x>]

On Tue, May 24, 2011 at 11:00 AM, Pierpaolo Bernardi
<olopierpa@x> wrote:
> On Tue, May 24, 2011 at 10:48, leppie <xacc.ide@x> wrote:
>> On Tue, May 24, 2011 at 10:25 AM, Pierpaolo Bernardi
>> <olopierpa@x> wrote:
>>
>>> I use them, sometimes, when rewriting in scheme an algorithm
>>> written in imperative style in a foreign language.  For example,
>>> when taking an algorithm from a book.
>>>
>>> Sometimes it's worth the time to translate the code in good style,
>>> and sometimes the time is missing.  Luckily, with scheme we have
>>> the choice.
>>>
>>> Nevertheless, I'd prefer not to have these macros in the standard.
>>> And I'd strongly prefer not to have them in WG1 scheme.
>>
>> There are good reasons to use UNLESS and WHEN, especially in terms of
>> error checking.
>
> The text written by me that you quote refers to WHILE and UNTIL macros,
> not to WHEN and UNLESS, about which I agree with you, and it seems also
> with everyone else which has expressed an opinion.
>
> Cheers
> P.
>

Do'h!  Oops my bad :)

-- 
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