[mkgmap-dev] methods to write signed / unsigned integers

Mon May 14 12:29:18 BST 2018

Hi Gerd

Another patch I've had hanging around is this. You've already taken a
couple of fixes from it and there have been some unrelated changes that
impact the same files and a fix to a mistake I made in the previous set
of changes (sorry), so I can do another patch if you want.

I've tested all the Display main entry points and get the same output. 

Looking thorough the patch I don't see any mistakes but do see the odd
fix, mainly relating to changing signed 3 byte offsets to be unsigned;
some of these won't ever have caused a problem because the top bits are
used as flags and so get masked out.

So, I hope it won't cause any additional problems. 

Regards
Ticker

On Tue, 2018-04-24 at 11:37 +0100, Ticker Berkin wrote:
> Hi Gerd & Steve
> 
> I've done another pass through Display to remove lots of casts and
> masking. 
> 
> This required removed the overloading of
> Displayer.setBytes(byte/char/short/int) by having setBytes1/2/4() to
> match the existing setBytes3()
> 
> DisplayItem.getValue() now returns the same value as fed in with
> setBytesX(), which also returns this value. 
> 
> I think Displayer.byteValue(), sByteValue, charValue should be
> changed
> to return this same int value, this will allow more casts/masks to be
> removed.
> 
> In this pass I've tried to keep the exact same final output as the
> version before any of the IO changes. There are a few places that
> I've
> marked with %%% where I think the code is wrong, treating something
> as
> signed when it isn't.
> 
> I don't have any DEM data for testing test.display.DemDisplay but
> I've
> done all the other sections.
> 
> NodConvert gives Exception in thread "main" java.lang.AssertionError
> at test.display.NodConvert.pointerPart(NodConvert.java:274)
>                  if (first) {
>                         assert !newdir;
> but it did this for me with the pre-io-change version
> 
> Regards
> Ticker
> 
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