[roflyear]

How do you step through your code to understand what EXACTLY is happening to the data without a debugger?

[anamax]

I haven't used a debugger in 20+ years.

If I don't understand what is happening to data without stepping, the code is too complicated.

If it's too complicated, I don't understand it now, won't understand it later, and it's probably wrong.

If I was working (again) in embedded systems, I might use a debugger as a substitute for print.