Index.GetOffset(Int32) Method

Reference

Definition

Namespace:: System

Assemblies:: netstandard.dll, System.Runtime.dll

Assembly:: System.Runtime.dll

Assembly:: Microsoft.Bcl.Memory.dll

Assembly:: netstandard.dll

Package:: Microsoft.Bcl.Memory v10.0.0-preview.1.25080.5

Source:: Index.cs

Source:: Index.cs

Source:: Index.cs

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Calculates the offset from the start of the collection using the specified collection length.

public:
 int GetOffset(int length);

public int GetOffset(int length);

member this.GetOffset : int -> int

Public Function GetOffset (length As Integer) As Integer

Parameters

length: Int32

The length of the collection that the Index will be used with. Must be a positive value.

Returns

Int32

The offset.

Remarks

For performance reasons, this method does not validate if length or the returned value are negative. It also doesn't validate if the returned value is greater than length.

Collections are not expected to have a negative length/count. If this method's returned offset is negative and is then used to index a collection, the runtime will throw ArgumentOutOfRangeException, which will have the same effect as validation.

Applies to

Produkt	Versiounen
.NET	Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10
.NET Standard	2.0 (package-provided), 2.1

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