https://bugs.kde.org/show_bug.cgi?id=507547
Bug ID: 507547
Summary: Failed assertion when inserting a new subtitle line
above the first.
Classification: Applications
Product: subtitlecomposer
Version First unspecified
Reported In:
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
STEPS TO REPRODUCE
- build subtitlecomposer with debug and assertions enabled
- open a subtitle file
- select the first subtitle line
- select command "insert before" from the context menu
OBSERVED RESULT
- failed assertion: 'm_ref' is null, but it shouldn't
According to C++ specs, in release builds, program behaviour after the failed
assertion is undefined, though in practice it is not.
SOFTWARE/OS VERSIONS
- shouldn't matter
ADDITIONAL INFORMATION
I already tracked it down to the method "SubtitleLine::index()" in
"src/core/subtitleline.cpp". Apparently, there is some convoluted template
magic with Qt going on, which may not call the constructor of helper objects as
one would expect. It also doesn't seem to be first time this issue has popped
up, because there is already some code there to work around this issue.
I already patched it for myself. If you are interested, what is the proper way
to make this patch available? I heard of pull requests, but I have no
experience how those works.
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