[ros-dev] compatibility vs. correctness

[Alex Ionescu]

This makes no sense.

Can you please provide a specific example of what the API call was,  
and what the invalid parameter was?

On 7-Dec-08, at 1:22 PM, Zachary Gorden wrote:

> I suppose I should have phrased that statement better.  We know  
> Windows let that pass, and it was likely due to backwards  
> compatibility.  But if that code was compiled using something like VC 
> ++8, would it even be valid and produce a binary that functioned the  
> way you'd expect?  Case in point, in Petzold's book, it talks about  
> ways to access the HI/LOW values to deal with the mousewheel, if I  
> recall correctly.  If you tried to use that code and compile it in VC 
> ++8, the resulting executable's mousewheel behavior would be messed  
> up.  However, if you ran the executables, the mousewheel would  
> behave as expected.  An instance of MS preserving backwards  
> compatibility due to sloppy/incorrect coding in old executables, but  
> also them not letting you continue to use that practice/method when  
> you're writing new code or recompiling the old code and essentially  
> targeting newer versions of Windows.
>
> I suppose this boils down to what the app is, and what that app did  
> to allow it to take advantage of MS' maintaining backwards  
> compatibility.  If we're going to also reproduce the worts, we need  
> to make sure we do so correctly.
>
> On Sun, Dec 7, 2008 at 12:07 PM, Ged <gedmurphy at gmail.com> wrote:
> Zachary Gorden wrote:
>
> > Just because Windows was tolerant of this specific sloppiness  
> doesn't mean
> we should be.
>
> I completely disagree.
> We need to replicate the Windows API as closely as possible, warts  
> and all.
> This is what compatibility is all about
>
> Ged.
>
>
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Best regards,
Alex Ionescu

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