I'm getting an error that causes robotC to crash on compile with a generic "ROBOTC Integrated Development Environment has stopped working" message. (On older operating systems it simply closes with no message.) This is on RobotC 3.08, compiling for NXT. (Yes, I know it's old, but I just want to make sure it gets fixed if it hasn't been yet. If it's fixed on newer versions I figure my work here is done.)

The crash appears to occur whenever the following conditions are all met:
- A function has an undefined procedure in it. (like if you have a typo in a function name)
- The function takes at least one input.
- The function is correctly called, and its output is assigned to a variable.

The crash DOESN'T occur if the output is used, but not assigned to a variable. For example, if a function named testFunc has the error in it, the line

x = testFunc(100);

would cause the crash, but the line

if(testFunc(100)>50)

would not cause the crash.

My testing was done on Windows 7.

Like I said, this isn't stopping me from doing anything, since it only occurs when you'd have a compiler error anyway, but I really want to know how on earth there's a crash this specific, and I want to bring it to your attention if it's not already fixed.

I am using 3.55 B 2 and this piece of code does not crash the IDE:


I just get an error:


= Xander

Sorry, I wasn't clear enough. testFunc would need to be a real function, it's inside testFunc that needs to have an undefined procedure.

For example



crashes my compiler.

I am running 3.55 B2 and I see this:


No crash.
Solution: update your ROBOTC. You can get 3.55 B2 from here: viewtopic.php?f=52&t=5122

= Xander

Ok, glad it got fixed since the release I'm running.

(Although I admit I'm slightly sad I'll probably never know what caused it.)

A bug in the compiler or IDE, most likely

= Xander