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Array.blit<'T> Function (F#)

Reads a range of elements from the first array and writes them into the second.

Namespace/Module Path: Microsoft.FSharp.Collections.Array

Assembly: FSharp.Core (in FSharp.Core.dll)

// Signature:
Array.blit : 'T [] -> int -> 'T [] -> int -> int -> unit

// Usage:
Array.blit source sourceIndex target targetIndex count
source

Type: 'T []

The source array.

sourceIndex

Type: int

The starting index of the source array.

target

Type: 'T []

The target array.

targetIndex

Type: int

The starting index of the target array.

count

Type: int

The number of elements to copy.

This function is named CopyTo in compiled assemblies. If you are accessing the function from a language other than F#, or through reflection, use this name.

The following code example illustrates the use of Array.blit.

let array1 = [| 1 .. 10 |]
let array2 = Array.zeroCreate 20
// Copy 4 elements from index 3 of array1 to index 5 of array2.
Array.blit array1 3 array2 5 4
printfn "%A" array2

Output

[|0; 0; 0; 0; 0; 4; 5; 6; 7; 0; 0; 0; 0; 0; 0; 0; 0; 0; 0; 0|]

Windows 8, Windows 7, Windows Server 2012, Windows Server 2008 R2

F# Core Library Versions

Supported in: 2.0, 4.0, Portable

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