I'm trying to figure out what are good practises for editing questions, and since I don't think there are rules you can always follow, I'll try giving specific cases.
For example, this question's title Dereferencing a structure pointer as a diffrent structure's pointer in C
Now, I'm thinking, after reading the body of the question, that the title should be more like this:
Will my program's output change if I use a different compiler (I'm dereferencing a structure pointer as a different structure's pointer in C)
Would that be a correct edit? And in general, are edits in that spirit (adding details to the title to make the body less surprising)?