[stinos]

I've never even tried to debug someone else's library - life's too short, and it's not what I'm getting paid for.

What is your general strategy to deal with bugs in other code? Sometimes just stepping through other code and fixing something small there is by far the fastest way to get things done. Not life-shortening at all :) I.e. way faster than alternatives like submitting a bug report and hoping it gets fixed, or hacking around the bug, or looking for another library. I do not understand why you'd abandon the idea out of principle. Perhaps you had some really bad experiences with it when you just started or so?

Have you looked at the source for (say) your Standard Library implementation?

Very often. Usually not to 'debug it' in the sense of finding bugs but to figure out in detail why my code invokes UB or asserts or whatever somewhere else. Or in case of documentation not being clear to find out what really happens. Also a good way to learn by seeing how others write code.