Formulas crashing in XaoS

[jblang]

We have several bug reports of user formulas that are crashing in XaoS. Here is a filter that will show the sffe-related bugs in our tracker. I updated to XaoS to use the latest code from your repo and it fixed one of the bugs but the rest still happen.

• Three of the bugs appear to happen in the sffe_parse routine but I haven't debugged any further yet.
• The bug that was fixed by your new code was crashing in sffe_eval rather than sffe_parse, but now it is working. Makes sense since you refactored that code.
• The fourth bug is related to multi-threading and I believe I probably need to have multiple sffe contexts, one for each thread, to fix that.

I wasn't sure how else to get hold of you. Please let me know if you can help.

[malczak]

@jblang I will take a look at it this week, thanks for reaching out

[jblang]

Hi Mateusz, I never head from you on this so I wanted to touch base again. We want to release XaoS 4.0 soon so it would be nice if we can fix some of these bugs.

Also, I updated the XaoS developer's guide with implementation details from your blog: https://github.com/xaos-project/XaoS/wiki/Developer's-Guide#user-defined-formulae. I hope copying that is OK with you. If not let me know and I will remove it.