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Fully apprecriate the work involved in writing a translation layer.
If it is practical and inline with your vision to provide a new function, even one that is outside of SiteInterface, one that possibly returns a pointer to DATE or a AmiDate Array. A Function that is not available to 5.28 or before, thus compatibility is maintained, then it would be fully apprecriated.
--- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" <groups@xxx> wrote:
>
> Hello,
>
> 1. That would not be effective because this setting affects only data that fit in the cache (as set in preferences).
> Data that are large than in-memory cache size (1GB max) would need to be flushed to disk in new format anyway.
> End result would be a mixture that is readable by 5.27+ but not readable by any earier version.
>
> 2. Due to backward compatibility with existing plugins the AmiVar structure has to have the size of 8 bytes
> (4 bytes type, 4 bytes data) and there is simply no room for that.
> Implementing your suggestion means either breaking compatibility with existing plugins or
> writing translation layer that will convert back and forth parameters from old style to new style with each
> and every call back and forth. The second solution would eventually happen, but I did not want
> to break everything just now. I had enough headache with changes that were requested and the amount of work
> was tremendous despite the "visuals" did not change. This is not really something you do easily,
> because ordinary people see "no advantage" because they see no new buttons in the UI, yet
> the amount of work you do is huge.
>
> Best regards,
> Tomasz Janeczko
> amibroker.com
> ----- Original Message -----
> From: "paultsho" <paul.tsho@xxx>
> To: <amibroker@xxxxxxxxxxxxxxx>
> Sent: Sunday, August 23, 2009 12:03 PM
> Subject: [amibroker] Re: AmiBroker 5.28.0 BETA released
>
>
> > Tomasz
> > I have one suggestion and one request with regard to 5.28
> >
> > suggestion - Could you make "Ast to save changed data" checked as default for the next few releases until people have grown used
> > to the new database format. Because if it not set, the new format would be saved when we exit AB, regardless of whether we want it
> > saved or not. That was the first thing I did, and it took ages to get it back in the previous format.
> >
> > request - even though you dont have a specific function that returns the DateTime number in dll. I was able to recast DateTime()
> > from a pointer to float to a pointer to AmiDate and access the datetime for each bar. obviously, this is no longer possible. Of
> > course I could use two functions Datenum and Timenum and combine them for each bar. but that would be a waster of cpu cycles given
> > that you actually store the DATETIME in AmiDate format. Could we have a functio that returns a 64 bits pointer to AmiDate or
> > alternatively DATE. It would make dll function writing for intraday bars, especially tick bars a lot more efficient.
> >
> > Thanks
> >
> >
> > --- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" <groups@> wrote:
> >>
> >> Hello,
> >> AmiBroker 5.28.0 BETA released:
> >>
> >> http://www.amibroker.com/devlog/2009/08/22/amibroker-5-28-0-beta-released/
> >>
> >>
> >> Best regards,
> >> Tomasz Janeczko
> >> amibroker.com
> >>
> >
> >
> >
> >
> > ------------------------------------
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> >
>
------------------------------------
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