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Re: [amibroker] Re: AFL programming style questions comments /* */ vs. //



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Tuzo, Joe,

So if I understand this correctly, in my code I use many loops for  
complex functions and comment many lines because of the complexity.   
If each line I comment takes 100 ns and I am running a 50,000 bar  
backtest, I could end up with 800 ms of time wasted in // comments!

Since the /* */ comments are removed once when the formula is loaded,  
they are not going to affect these times.

I don't think I am wasting that much time in // comments though,  
because that would mean that half my execution time was skipping  
comments and I don't think that is reasonable.  Looking over some of  
my loops, I can see that I kept the comments on lines inside the loops  
to a minimum.

Still, I would like to comment my code freely without thinking that my  
comments are hurting the execution speed.

That means that I need to use /* */ comments for code unless the //  
EOL comments are also removed once when loaded.

BR,
Dennis

On Aug 5, 2008, at 3:25 PM, tuzo_wilson wrote:
> Joseph,
>
> Thanks for digging that up...my Yahoo search came up empty.
>
> If I'm reading the above correctly, C++ style comments are actually
> *faster* than C style (for a single line).  /* */ block comments over
> multiple lines may be faster in that scenario.
>
> Either way, those numbers are quite small so, IMO, it would be better
> to use C++ // style comments exclusively.  Then in the case when
> debugging is required whole code blocks can easily be commented out
> with /* */ comments.
>
>
> Tuzo


> --- In amibroker@xxxxxxxxxxxxxxx, "J. Biran" <jbiran@xxx> wrote:
>>
>> It was first mentioned in release notes for AB 4.88. also
>> quoting from another message:
>>> -----Original Message-----
>>> From: AmiBroker-at@xxxxxxxxxxxxxxx On Behalf Of Tomasz
>> Janeczko
>>> Sent: Friday, October 20, 2006 12:32 PM
>>> To: AmiBroker-at@xxxxxxxxxxxxxxx
>>> Subject: Re: [AmiBroker-at] Re: Conditional #include
>>>
>>> Hello,
>>>
>>> I took a look at code part that handles comments and
>> improved
>>> it now, so single line of /* */ comment takes now 0.14
>> microseconds,
>>> when single line of // comment takes 0.10 microseconds.
>>>
>>> Best regards,
>>> Tomasz Janeczko
>>> amibroker.com
>>
>> I am glad I bothered searching for the original information.
>> I somehow remembered the numbers were in milliseconds not
>> microseconds. Ok, I will be able to sleep better now ;)
>

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