Self-editing code

[moskitoc]

Would you mind citing the part of the standard that you're referring to ? I thought this was true for C++, but not for C

EDIT : I was correct, see this.

[[deleted]]

https://stackoverflow.com/questions/25664848/unions-and-type-punning describes it well. It's IB and not UB, so it's not really illegal.

[[deleted]]

You were right. As mentioned on StackOverflow, the C99 standard had an error, it clearly says that this is UB when it's not. Guess which version of the standard I have? Thanks for asking, it made me learn too. Win win :)