> On Oct 10, 2017, at 01:50, Martin R via swift-users <swift-users@swift.org> > wrote: > > Thank you Howard for you response! However, I have a follow-up question: > > Why are UnsafeMutableBufferPointer methods which modify not the buffer > pointer itself, but only the pointed-to memory, mutating at all?
Don’t forget that UnsafeMutableBufferPointer conforms to MutableCollection, and that many MutableCollection methods (such as swapAt) must be mutating. The BufferPointer types are unusual among Collection conformers in not having value semantics. Cheers, Guillaume Lessard _______________________________________________ swift-users mailing list swift-users@swift.org https://lists.swift.org/mailman/listinfo/swift-users
