How to find out the location of a failed assert? (Calling debug-build DLL in Unity)
Writing a C++ DLL to use from Unity3D. If I build the DLL as release, I currently get some undefined behavior nonsense. If building as debug build, the following popup shows:
Unfortunately the error redirects into the vector class and not the place where it is actually used in my own code. I know what DLL function causes this, but I cannot find out why this happens because there is a lot of vector handling. I do suspect some multithreading issue.
However how do I find out which particular line, aka which assert failed? I do not seem to be able to catch asserts with the try-catch block.
Huge thanks in advance :)
Turns out it is possible to debug the Unity editor as a whole with attached DLLs.
- Find out where the actual editor is (in the rightclick menu of the installs tab in Unity Hub)
- Open that EXE with Visual Studio (literally the "Open project" selection)
- Go to the solutions properties -> parameters and add: -projectPath "PATH_TO_YOUR_UNITY_PROJECT_DIRECTORY"
- Debug -> Start Debugging (or F5)
- If you get an assertion etc. click "Retry".
Step 3 is important because for whatever reason, Unity does not show the "open a project" option if started as debug and just closes itself instead. That's what made me think that external debugging is not supported.
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