On: Some things I've learnt about programming

[stavros]

Aren't there debuggers that step backwards? That sounds useful in many cases, and not impossible to create, at least for special cases.

[lt → stavros]

Yes, they're usually called "Omniscient Debuggers". Intellitrace on Visual Studio provides this kind of funcionality.

[zaptheimpaler → stavros]

Also GDB has supported reverse-execution on some environments (i386-linux and amd64-linux included) since version 7.

[brianpan → stavros]

Some debuggers let you "drop frames". This brings you back up the call stack and you can step back down into the beginning of the method call.

http://stackoverflow.com/questions/2367816/when-using-the-ja...

[gaius → stavros]

OCamlDebug does this. Magic :-)