subscript(_:)

Declaration

subscript(i: Int) -> Pointee { get nonmutating set }

Parameters

• i:

  The offset from this pointer at which to access an instance, measured in strides of the pointer’s Pointee type.

Overview

For a pointer p, the memory at p + i must be initialized when reading the value by using the subscript. When the subscript is used as the left side of an assignment, the memory at p + i is updated. The memory must be initialized or the pointer’s Pointee type must be a trivial type.

Uninitialized memory cannot be initialized to a nontrivial type using this subscript. Instead, use an initializing method, such as initialize(to:).