次の方法で共有


Buffer.SetByte(Array, Int32, Byte) メソッド

定義

指定した配列の指定した位置にあるバイトに、指定した値を代入します。

public:
 static void SetByte(Array ^ array, int index, System::Byte value);
public static void SetByte (Array array, int index, byte value);
static member SetByte : Array * int * byte -> unit
Public Shared Sub SetByte (array As Array, index As Integer, value As Byte)

パラメーター

array
Array

配列。

index
Int32

配列内の位置。

value
Byte

代入する値。

例外

array がプリミティブではありません。

arraynullです。

index が負か、または array の長さを超えています。

array は 2 GB を超えています。

次のコード例では、 メソッドを使用して配列内の特定の場所にあるバイトに値を SetByte 割り当てます。

// Example of the Buffer::SetByte method.
using namespace System;

// Display the array contents in hexadecimal.
void DisplayArray( Array^ arr, String^ name )
{
   
   // Get the array element width; format the formatting string.
   int elemWidth = Buffer::ByteLength( arr ) / arr->Length;
   String^ format = String::Format( " {{0:X{0}}}", 2 * elemWidth );
   
   // Display the array elements from right to left.
   Console::Write( "{0,7}:", name );
   for ( int loopX = arr->Length - 1; loopX >= 0; loopX-- )
      Console::Write( format, arr->GetValue( loopX ) );
   Console::WriteLine();
}

int main()
{
   
   // These are the arrays to be modified with SetByte.
   array<Int16>^shorts = gcnew array<Int16>(10);
   array<Int64>^longs = gcnew array<Int64>(3);
   Console::WriteLine( "This example of the "
   "Buffer::SetByte( Array*, int, unsigned char ) \n"
   "method generates the following output.\n"
   "Note: The arrays are displayed from right to left.\n" );
   Console::WriteLine( "  Initial values of arrays:\n" );
   
   // Display the initial values of the arrays.
   DisplayArray( shorts, "shorts" );
   DisplayArray( longs, "longs" );
   
   // Copy two regions of source array to destination array,
   // and two overlapped copies from source to source.
   Console::WriteLine( "\n  Array values after setting byte 3 = 25, \n"
   "  byte 6 = 64, byte 12 = 121, and byte 17 = 196:\n" );
   Buffer::SetByte( shorts, 3, 25 );
   Buffer::SetByte( shorts, 6, 64 );
   Buffer::SetByte( shorts, 12, 121 );
   Buffer::SetByte( shorts, 17, 196 );
   Buffer::SetByte( longs, 3, 25 );
   Buffer::SetByte( longs, 6, 64 );
   Buffer::SetByte( longs, 12, 121 );
   Buffer::SetByte( longs, 17, 196 );
   
   // Display the arrays again.
   DisplayArray( shorts, "shorts" );
   DisplayArray( longs, "longs" );
}

/*
This example of the Buffer::SetByte( Array*, int, unsigned char )
method generates the following output.
Note: The arrays are displayed from right to left.

  Initial values of arrays:

 shorts: 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
  longs: 0000000000000000 0000000000000000 0000000000000000

  Array values after setting byte 3 = 25,
  byte 6 = 64, byte 12 = 121, and byte 17 = 196:

 shorts: 0000 C400 0000 0079 0000 0000 0040 0000 1900 0000
  longs: 000000000000C400 0000007900000000 0040000019000000
*/
// Example of the Buffer.SetByte method.
using System;

class SetByteDemo
{
    // Display the array contents in hexadecimal.
    public static void DisplayArray( Array arr, string name )
    {
        // Get the array element width; format the formatting string.
        int elemWidth = Buffer.ByteLength( arr ) / arr.Length;
        string format = String.Format( " {{0:X{0}}}", 2 * elemWidth );

        // Display the array elements from right to left.
        Console.Write( "{0,7}:", name );
        for( int loopX = arr.Length - 1; loopX >= 0; loopX-- )
            Console.Write( format, arr.GetValue( loopX ) );
        Console.WriteLine( );
    }

    public static void Main( )
    {
        // These are the arrays to be modified with SetByte.
        short[ ] shorts = new short[ 10 ];
        long[ ]  longs  = new long[ 3 ];

        Console.WriteLine( "This example of the " +
            "Buffer.SetByte( Array, int, byte ) \n" +
            "method generates the following output.\n" +
            "Note: The arrays are displayed from right to left.\n" );
        Console.WriteLine( "  Initial values of arrays:\n" );

        // Display the initial values of the arrays.
        DisplayArray( shorts, "shorts" );
        DisplayArray( longs, "longs" );

        // Copy two regions of source array to destination array,
        // and two overlapped copies from source to source.
        Console.WriteLine( "\n" +
            "  Array values after setting byte 3 = 25, \n" +
            "  byte 6 = 64, byte 12 = 121, and byte 17 = 196:\n" );

        Buffer.SetByte( shorts, 3, 25 );
        Buffer.SetByte( shorts, 6, 64 );
        Buffer.SetByte( shorts, 12, 121 );
        Buffer.SetByte( shorts, 17, 196 );
        Buffer.SetByte( longs, 3, 25 );
        Buffer.SetByte( longs, 6, 64 );
        Buffer.SetByte( longs, 12, 121 );
        Buffer.SetByte( longs, 17, 196 );

        // Display the arrays again.
        DisplayArray( shorts, "shorts" );
        DisplayArray( longs, "longs" );
    }
}

/*
This example of the Buffer.SetByte( Array, int, byte )
method generates the following output.
Note: The arrays are displayed from right to left.

  Initial values of arrays:

 shorts: 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
  longs: 0000000000000000 0000000000000000 0000000000000000

  Array values after setting byte 3 = 25,
  byte 6 = 64, byte 12 = 121, and byte 17 = 196:

 shorts: 0000 C400 0000 0079 0000 0000 0040 0000 1900 0000
  longs: 000000000000C400 0000007900000000 0040000019000000
*/
open System

// Display the array contents in hexadecimal.
let inline displayArray (arr: ^a []) name =
    // Get the array element width; format the formatting string.
    let elemWidth = Buffer.ByteLength arr / arr.Length

    // Display the array elements from right to left.
    printf $"{name,5}:"
    for i = arr.Length - 1 downto 0 do
        printf " %0*X" (2 * elemWidth) arr[i]
    printfn ""

// These are the arrays to be modified with SetByte.
let shorts = Array.zeroCreate<int16> 10
let longs = Array.zeroCreate<int64> 3

printfn "This example of the Buffer.SetByte(Array, int, byte) \nmethod generates the following output.\nNote: The arrays are displayed from right to left.\n"
printfn "  Initial values of arrays:\n"

// Display the initial values of the arrays.
displayArray shorts "shorts"
displayArray longs "longs"

// Copy two regions of source array to destination array,
// and two overlapped copies from source to source.
printfn "\n  Array values after setting byte 3 = 25, \n  byte 6 = 64, byte 12 = 121, and byte 17 = 196:\n"

Buffer.SetByte(shorts, 3, 25uy)
Buffer.SetByte(shorts, 6, 64uy)
Buffer.SetByte(shorts, 12, 121uy)
Buffer.SetByte(shorts, 17, 196uy)
Buffer.SetByte(longs, 3, 25uy)
Buffer.SetByte(longs, 6, 64uy)
Buffer.SetByte(longs, 12, 121uy) 
Buffer.SetByte(longs, 17, 196uy)

// Display the arrays again.
displayArray shorts "shorts"
displayArray longs "longs"


// This example of the Buffer.SetByte( Array, int, byte )
// method generates the following output.
// Note: The arrays are displayed from right to left.
//
//   Initial values of arrays:
//
//  shorts: 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
//   longs: 0000000000000000 0000000000000000 0000000000000000
//
//   Array values after setting byte 3 = 25,
//   byte 6 = 64, byte 12 = 121, and byte 17 = 196:
//
//  shorts: 0000 C400 0000 0079 0000 0000 0040 0000 1900 0000
//   longs: 000000000000C400 0000007900000000 0040000019000000
' Example of the Buffer.SetByte method.
Module SetByteDemo

    ' Display the array contents in hexadecimal.
    Sub DisplayArray( arr As Array, name As String )

        ' Get the array element width; format the formatting string.
        Dim loopX     As Integer
        Dim elemWidth As Integer = _
            Buffer.ByteLength( arr ) / arr.Length
        Dim format    As String = _
            String.Format( " {{0:X{0}}}", 2 * elemWidth )

        ' Display the array elements from right to left.
        Console.Write( "{0,7}:", name )
        For loopX = arr.Length - 1 to 0 Step -1
            Console.Write( format, arr( loopX ) )
        Next loopX
        Console.WriteLine( )
    End Sub

    Sub Main( )

        ' These are the arrays to be modified with SetByte.
        ' This allocates 10 elements for shorts and 3 elements
        ' for longs in Visual Basic.
        Dim shorts( 9 ) As Short
        Dim longs( 2 )  As Long  

        Console.WriteLine( "This example of the " & _
            "Buffer.SetByte( Array, Integer, Byte ) " & vbCrLf & _
            "method generates the following output." & vbCrLf & _
            "Note: The arrays are displayed from right to left." & _
            vbCrLf )
        Console.WriteLine( "  Initial values of arrays:" & vbCrLf )

        ' Display the initial values of the arrays.
        DisplayArray( shorts, "shorts" )
        DisplayArray( longs, "longs" )

        ' Copy two regions of source array to destination array,
        ' and two overlapped copies from source to source.
        Console.WriteLine( vbCrLf & _
            "  Array values after setting byte 3 = 25, " & vbCrLf & _
            "  byte 6 = 64, byte 12 = 121, and byte 17 = 196:" & vbCrLf )

        Buffer.SetByte( shorts, 3, 25 )
        Buffer.SetByte( shorts, 6, 64 )
        Buffer.SetByte( shorts, 12, 121 )
        Buffer.SetByte( shorts, 17, 196 )
        Buffer.SetByte( longs, 3, 25 )
        Buffer.SetByte( longs, 6, 64 )
        Buffer.SetByte( longs, 12, 121 )
        Buffer.SetByte( longs, 17, 196 )

        ' Display the arrays again.
        DisplayArray( shorts, "shorts" )
        DisplayArray( longs, "longs" )
    End Sub 
End Module 

' This example of the Buffer.SetByte( Array, Integer, Byte )
' method generates the following output.
' Note: The arrays are displayed from right to left.
' 
'   Initial values of arrays:
' 
'  shorts: 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
'   longs: 0000000000000000 0000000000000000 0000000000000000
' 
'   Array values after setting byte 3 = 25,
'   byte 6 = 64, byte 12 = 121, and byte 17 = 196:
' 
'  shorts: 0000 C400 0000 0079 0000 0000 0040 0000 1900 0000
'   longs: 000000000000C400 0000007900000000 0040000019000000

注釈

array はプリミティブの配列である必要があります。

適用対象