I'm trying to debug some C code, and the Dubugging feature built into IDE50/Cloud9 doesn't seem to work with C.

Is there a way for me to perform common debugging tasks in IDE50 like add breakpoints, watch expressions, or run simple functions in an immediate window? If so, how?

If not, is there a recommended way to narrow down issues in multi-line programs and/or or test individual parts?

I've used the built-in debugging tools in (pre-.NET) VB6/VBA and SQL Server Management Studio before, and I found them to be very helpful.

FYI, I looked around for an answer to my questions, but I couldn't find any. I also played around a little bit with some free IDEs for Mac OS, but I couldn't figure out how to use them. A little over my head. :-P

1 Answer 1


debug50 is the right tool. To set a breakpoint in your source (before running debug50), click in the gutter to the left of the line number and a 🔴 will appear.

enter image description here

  • Ah, that seems to work! (I see it is covered in Week 2, but I'm still working on Week 1, thus didn't encounter it yet.)
    – EJ Mak
    Apr 28, 2017 at 14:50

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