Re: opening bar check crashes the compiler

[Thomas Morley]

2013/2/24 Steve Yegge <address@hidden>:
> Here's a small input file which for me produces a bus error when compiled
> with version 2.16.2 on OS X 10.7.5 (intel):
>
> \version "2.16.2"
>
> music = {
>   | d
> }
>
> \score {
>   << \new Staff { \music } >>
> }
>
> \score {
>   \music
>   \midi {
>     \context {
>       \Score
>       midiInstrument = #"acoustic guitar (steel)"
>     }
>   }
> }
>
> If you remove the | bar-check, it no longer crashes.
>
> This was happening in 2.14.x as well.
>
> Regards,
>
> -steve
>
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>

Hi Steve,

if you think having found a bug you should report it following the
guidelines from
http://lilypond.org/website/bug-reports.html

That said, quoting the NR
http://lilypond.org/doc/v2.17/Documentation/notation-big-page#bar-and-bar-number-checks

%%%%

Bar and bar number checks

Bar checks help detect errors in the entered durations. A bar check
may be entered using the bar symbol, |, at any place where a bar line
is expected to fall. If bar check lines are encountered at other
places, a list of warnings is printed in the log file, showing the
line numbers and lines in which the bar checks failed. In the next
example, the second bar check will signal an error.

    \time 3/4 c2 e4 | g2 |

%%%

Shows that the bar-check should be written _after_ the section which
should be checked.

So, writing
| d
is a user-error.

Well, perhaps this error shouldn't result in a crash or perhaps the
doc should be more clear.

Seems to me that this is the real problem.

-Harm