English binary logic operators
Daniel Keep
daniel.keep+lists at gmail.com
Tue Nov 28 22:12:01 PST 2006
Bill Baxter wrote:
> Daniel Keep wrote:
>
>> Thomas Kuehne wrote:
>>
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>>> David Qualls schrieb am 2006-11-28:
>>>
>>>
>>>> Perhaps a few more BRIEF opinions regarding whether the standard
>>>> English operators should be adopted within the D language would be
>>>> enough to send the think-tank to their Cave Of Contemplation to
>>>> debate it amongst themselves.
>>>
>>>
>>>
>>>
>>> Adding addtional keywords that have exactly the same functions like
>>> already present keywords (actually keytokens) seems to be against D's
>>> spirit.
>>>
>>> The more general issue: Iv'e checked 10 random C/C++ projects
>>> (taken from Gentoo's portage) and none of them used iso646.h's
>>> alternative
>>> spellings.
>>>
>>> Thomas
>>>
>>>
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>>
>>
>>
>> Hang on... doesn't that header define macros that look like normal
>> prefix functions? You're comparing this:
>>
>> > (expr1 and expr2) or (expr2 and expr3)
>>
>> with this:
>>
>> > or(and(expr1, expr2), and(expr2, expr3))
>>
> [snip]
>
>>
>> Blech; I'm rambling. Sorry about that :)
>
>
> And not doing your homework either. :-)
>
> A rudimentary google search turns up:
>
> #define and && [keyword in C++]
> #define and_eq &= [keyword in C++]
> #define bitand & [keyword in C++]
> #define bitor | [keyword in C++]
> #define compl ~ [keyword in C++]
> #define not ! [keyword in C++]
> #define not_eq != [keyword in C++]
> #define or || [keyword in C++]
> #define or_eq |= [keyword in C++]
> #define xor ^ [keyword in C++]
> #define xor_eq ^= [keyword in C++]
>
> So, no, iso464.h is not about prefix operators. Just some simple #defines.
Blech. Don't mind me, then. In my defense, I didn't even know that
header existed until I read this thread :P
> Interesting story about Australia not becoming a republic though. :-)
>
> --bb
Bloody John Howard. I'd vote against him if the alternative wasn't worse :(
-- Daniel
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