Re: Error message

[Urs Liska]

Am 23. Juni 2019 11:47:17 MESZ schrieb ah <address@hidden>:
>
>
>On 23/06/2019 08:38, Craig Dabelstein wrote:
>> Hi Lilyponders,
>> 
>> Can anyone tell me what this error message means when trying to
>compile a
>> file?
>> 
>> Drawing systems...
>>
>/home/gub/NewGub/gub/target/darwin-x86/src/lilypond-git.sv.gnu.org--lilypond.git-stable-2.20/flower/include/drul-array.hh:35
>> <0>: failed assertion `d == 1 || d == -1'
>> 
>> Exited with exit status 1.
>> 
>> 
>> All the best,
>> 
>> 
>> Craig
>> 
>> 
>
>Can it be that the file you try to compile contains an error?
>
>I am just starting and I am not acquainted with Lilypond at all but I 
>had a look at the source code. The "d" the failed assertion refers to
>is 
>of type "Direction" and must be 1 or -1. No other values are allowed 
>when calling the "at()" method.

Still, erroneous input should be caught by the parser rather than throwing that 
kind of exception. So here the question is what kind of input (condition) is 
able to provoke that problem.

Urs

>
>bw
>bliako
>
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