A shocking discovery about gcc’s unidirectional rotation algorithm -- Raymond Chen

Last time, we looked at the rotation algorithm used by gcc libstdc++ for random-access iterators , and I concluded by noting that we’re going to make a shocking discovery. Rotation revisited: A shocking discovery about gcc’s unidirectional rotation algorithm by Raymond Chen From the article: As with all shocking discoveries, this one will shock disappoint you. The discovery is that the gcc libstdc++ algorithm is the same as the forward-iterator algorithm !