rust-lang/rust — pull request #17381 by tbu- (2014-09-18 23:45:54+00:00)
Title: Refactor `Vec::map_in_place` to move code out of `PartialVec`

Additionally, support zero-sized types.

Now there isn't a safe interface of `PartialVec` anymore, it's just a bare data structure with destructor that assumes you handled everything correctly before.