Re: Issue 1618 in lilypond: unpredictable placement of rests

[Han-Wen Nienhuys]

You can run valgrind on lilypond. You just need to disable the
warnings regarding garbage collection.

On Sun, Apr 17, 2011 at 5:24 AM,  <address@hidden> wrote:
> Status: Accepted
> Owner: ----
> Labels: Type-Defect Priority-Critical
>
> New issue 1618 by percival.music.ca: unpredictable placement of rests
> http://code.google.com/p/lilypond/issues/detail?id=1618
>
> This is split from issue 1609 (that issue was specifically about the problem
> we saw in partcombine-midi.ly)
>
>
> As the examples below illustrate, placement of such rests still changes
> unpredictably.  The score in example 2 produces different output with the
> two command lines
>  lilypond test.ly
>  lilypond test.ly test.ly
> while version 2.12.3 produces the same output in either case.  Both versions
> produce a warning "too many colliding rests".  See also issue 1547 and issue
> 384.
>
> The variation in position of the rests appeared somewhere between 2.13.48
> and .54
>
>
> The completion- engravers are not essential, it is simply the fact that
> LilyPond does not have a rule to place simultaneous rests with a note of
> different durations (see issue 1547).  Smaller example, which produces
> different output depending on whether the file is alone on the command line
> or second in a list of .ly files:
>
> \version "2.12.3"
> \new Staff <<
>  \new Voice {
>    \voiceOne
>    r1 r1
>  }
>  \new Voice {
>    \voiceThree
>    c'2 e' g' b'
>  }
>  \new Voice {
>    \voiceTwo
>    r1 r1
>  }
>
>
>
>
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>



-- 
Han-Wen Nienhuys - address@hidden - http://www.xs4all.nl/~hanwen