init(buffer:initializedCount:)
Unsafely create an OutputRawSpan over partly-initialized memory.
Declaration
init(buffer: borrowing Slice<UnsafeMutableRawBufferPointer>, initializedCount: Int)Parameters
- buffer:
A
Slice<UnsafeMutableRawBufferPointer>to be initialized - initializedCount:
The number of initialized bytes at the beginning of
buffer.
Discussion
The memory in buffer must remain valid throughout the lifetime of the newly-created OutputRawSpan. Its prefix must contain initializedCount initialized bytes, followed by uninitialized memory.