updateIndices(_:)
Updates the index buffer in place synchronously on the CPU.
Declaration
final func updateIndices<R, E>(_ body: @_lifetime(0: copy 0) (inout MutableRawSpan) throws(E) -> R) throws(E) -> R where E : Error, R : ~CopyableParameters
- body:
A closure that receives a mutable span over the index buffer’s bytes for in-place modification.
Discussion
You pass a closure that receives a mutable span representing the contents of the index buffer, which the closure may modify. This span is valid only for the duration of the closure.