IRandomStreamSource<TRandom>.Seek Method

void Seek(
	ulong index
)

Sub Seek ( 
	index As ULong
)

void Seek(
	unsigned long long index
)

abstract Seek : 
        index : uint64 -> unit 

Parameters

index  UInt64

The target index for the next stream.

This method sets NextIndex to index relative to the current hierarchical path prefix. It is useful for starting enumeration at a specific offset.

This is equivalent to calling Advance(index - NextIndex) when index is greater than or equal to NextIndex.

The cost of this operation depends on the implementation:

• RandomStreamTree<TRandom>: O(1) - just sets a counter
• RandomStreamPartition<TRandom>: O(index) - must perform jump operations from the prefix anchor

Reference