# UnsafeBufferPointer A nonowning collection interface to a buffer of elements stored contiguously in memory. ``` @frozen struct UnsafeBufferPointer where Element : ~Copyable ``` ## Overview You can use an `UnsafeBufferPointer` instance in low level operations to eliminate uniqueness checks and, in release mode, bounds checks. Bounds checks are always performed in debug mode. # UnsafeBufferPointer Semantics An `UnsafeBufferPointer` instance is a view into memory and does not own the memory that it references. Copying a value of type `UnsafeBufferPointer` does not copy the instances stored in the underlying memory. However, initializing another collection with an `UnsafeBufferPointer` instance copies the instances out of the referenced memory and into the new collection. ## Relationships ### Conforms To [`OperationParameter`](/documentation/Accelerate/BNNSGraph/Builder/OperationParameter) [`BitwiseCopyable`](/documentation/Swift/BitwiseCopyable) [`Collection`](/documentation/Swift/Collection) [`ContiguousBytes`](/documentation/Foundation/ContiguousBytes) [`AtomicRepresentable`](/documentation/Synchronization/AtomicRepresentable) [`RandomAccessCollection`](/documentation/Swift/RandomAccessCollection) [`Copyable`](/documentation/Swift/Copyable) [`Escapable`](/documentation/Swift/Escapable) [`ConvertibleToBytes`](/documentation/Swift/ConvertibleToBytes) [`CustomDebugStringConvertible`](/documentation/Swift/CustomDebugStringConvertible) [`AccelerateBuffer`](/documentation/Accelerate/AccelerateBuffer) [`DataProtocol`](/documentation/Foundation/DataProtocol) [`Sequence`](/documentation/Swift/Sequence) [`BidirectionalCollection`](/documentation/Swift/BidirectionalCollection) --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)