[Proj] 4.7.1 bug report

[support.mn at elisanet.fi]

Frank,

I am using VC++ 6.0 and higher. I compile everything from
sources. Usually when I have had similar problems where
debug version works and release version not it is due to
the fact that debug version clears all memory before using
it but the release version does not bother. What happens is
that there is some variable that is not probably initialized in
the code. The release version has some garbage in that
variable but the debug version has clean zeros in it (since
it does clear the unused memory). And that is the reason the
debug version works.

Maybe there is some routine that assumes that some variable is
initialized but it actually is not ... this can be on my side or
proj side? But since 4.6.0 works all the way (both versions)...
I am assuming it must be in 4.7.1? Or I am using the
4.7.1 somehow wrong?

Regards: Janne.

--------------------------------

Frank Warmerdam [warmerdam at pobox.com] kirjoitti: 
> Markus Neteler wrote:
> > On Sun, Oct 3, 2010 at 5:24 PM,  <support.mn at elisanet.fi> wrote:
> >> Hello,
> >>
> >> I just switched back to version 4.6.0 (21 Dec 2007) which
> >> seems to work correctly. I was testing version 4.7.1 but
> >> it started to produce random (!!??) datums shift errors.
> >> Randomly datum shift returns HUGE_VAL without any
> >> reason for release version - debug version seems to
> >> work better. I did not check any more but switched back
> >> to 4.6.0 which seems to work well all the time.
> >>
> >> Reason is so far unknown.
> > 
> > In case that 4.7.1 corresponds to trunk, I can report that it
> > is broken for GRASS GIS (4.7.0 works). The problem seems
> > to be the change
> >  "roll projCtx through various other low level functions"
> > 
> > Consider to try 4.7.0 which is the latest published version.
> > Maybe trunk is yet in transition.
> 
> Markus / Janne,
> 
> I am not aware of trunk being broken.  A bug report with something I can
> reproduce and fix would be quite helpful.
> 
> Best regards,
> -- 
> ---------------------------------------+--------------------------------------
> I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
> light and sound - activate the windows | http://pobox.com/~warmerdam
> and watch the world go round - Rush    | Geospatial Programmer for Rent
> 
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