The past few commits introduced the concept of known-good offsets in the offset table (which is used for variable-width arrays and tuples). Good offsets are ones which are non-overlapping with all the previous offsets in the table. If a bad offset is encountered when indexing into the array or tuple, the cached known-good offset index will not be increased. In this way, all child variants at and beyond the first bad offset can be returned as default values rather than dereferencing potentially invalid data. In this case, there was no information about the fact that the indexes between the highest known-good index and the requested one had been checked already. That could lead to a pathological case where an offset table with an invalid first offset is repeatedly checked in full when trying to access higher-indexed children. Avoid that by storing the index of the highest checked offset in the table, as well as the index of the highest good/ordered offset. Signed-off-by: Philip Withnall <pwithnall@endlessos.org> Helps: #2121
GLib
GLib is the low-level core library that forms the basis for projects such as GTK and GNOME. It provides data structure handling for C, portability wrappers, and interfaces for such runtime functionality as an event loop, threads, dynamic loading, and an object system.
The official download locations are: https://download.gnome.org/sources/glib
The official web site is: https://www.gtk.org/
Installation
See the file 'INSTALL.in'
How to report bugs
Bugs should be reported to the GNOME issue tracking system. (https://gitlab.gnome.org/GNOME/glib/issues/new). You will need to create an account for yourself.
In the bug report please include:
- Information about your system. For instance:
- What operating system and version
- For Linux, what version of the C library
- And anything else you think is relevant.
- How to reproduce the bug.
- If you can reproduce it with one of the test programs that are built in the tests/ subdirectory, that will be most convenient. Otherwise, please include a short test program that exhibits the behavior. As a last resort, you can also provide a pointer to a larger piece of software that can be downloaded.
- If the bug was a crash, the exact text that was printed out when the crash occurred.
- Further information such as stack traces may be useful, but is not necessary.
Patches
Patches should also be submitted as merge requests to gitlab.gnome.org. If the patch fixes an existing issue, please refer to the issue in your commit message with the following notation (for issue 123): Closes: #123
Otherwise, create a new merge request that introduces the change, filing a separate issue is not required.