# NSGetSizeAndAlignment(_:_:_:) Obtains the actual size and the aligned size of an encoded type. ``` func NSGetSizeAndAlignment(_ typePtr: UnsafePointer, _ sizep: UnsafeMutablePointer?, _ alignp: UnsafeMutablePointer?) -> UnsafePointer ``` ## Discussion Obtains the actual size and the aligned size of the first data type represented by `typePtr` and returns a pointer to the position of the next data type in `typePtr`. You can specify `NULL` for either `sizep` or `alignp` to ignore the corresponding information. The value returned in `alignp` is the aligned size of the data type; for example, on some platforms, the aligned size of a `char` might be 2 bytes while the actual physical size is 1 byte. --- 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)