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Fix for issue 1173 to fails when asked to showLastLength on partial meas


From: n . puttock
Subject: Fix for issue 1173 to fails when asked to showLastLength on partial measures. (issue1741060)
Date: Wed, 04 Aug 2010 21:18:44 +0000

Reviewers: ,

Message:
Hi Mike,

Here are some general comments following testing:

-) showFirstLength still doesn't work

-) probably related to the above, but the combination of showFirstLength
and showLastLength doesn't work

-) if there's no time signature, showLastLength is ignored; this breaks
several regtests (should assume 4/4 in this case)

On a more serious note, I tested some real-world files, and one of them
crashed with an infinite loop in libguile (I can post the file if it
helps):

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff7931bdc in ?? () from /usr/lib/libguile.so.17
(gdb) bt
#0  0x00007ffff7931bdc in ?? () from /usr/lib/libguile.so.17
#1  0x00007ffff7932299 in ?? () from /usr/lib/libguile.so.17
#2  0x00007ffff7932f90 in ?? () from /usr/lib/libguile.so.17
#3  0x00007ffff7932299 in ?? () from /usr/lib/libguile.so.17
#4  0x00007ffff793231d in ?? () from /usr/lib/libguile.so.17

(etc.)

Cheers,
Neil

Description:
Fix for issue 1173 to fails when asked to showLastLength on partial
measures.

Fixes 1173 no error message rounds up to the next measure

Patch from Mike Solomon.

Please review this at http://codereview.appspot.com/1741060/show

Affected files:
  M scm/define-woodwind-diagrams.scm
  M scm/lily-library.scm
  M scm/music-functions.scm





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