Decimal.op_UnaryPlus メソッドとは何？わかりやすく解説 Weblio辞書

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Decimal.op_UnaryPlus メソッド

Decimal オペランドの値 (オペランドの符号は不変) を返します。

名前空間: System
アセンブリ: mscorlib (mscorlib.dll 内)
構文

Visual Basic (宣言)

Public Shared Operator + ( _
    d As Decimal _
) As Decimal

Visual Basic (使用法)

Dim d As Decimal
Dim returnValue As Decimal

returnValue = +d

public static decimal operator + (
    decimal d
)

C++

public:
static Decimal operator + (
    Decimal d
)

J# では、オーバーロードされた演算子は使用できません。

JScript

JScriptでは、 オーバーロードされた演算子は使用できますが、新規に宣言することはできません。

パラメータ

d: Decimal オペランド。

戻り値
オペランドの値 d。

使用例

Decimal の複数の値に Unary Plus 演算子を適用するコード例を次に示します。

Visual Basic

' Example of the Decimal increment, decrement, unary negation, and 
' unary plus operators.
Imports System
Imports Microsoft.VisualBasic

Module DecIncrDecrUnaryDemo
    
    ' Get the exception type name; remove the namespace prefix.
    Function GetExceptionType( ex As Exception
 ) As String

        Dim exceptionType   As String
 = ex.GetType( ).ToString( )
        Return exceptionType.Substring( _
            exceptionType.LastIndexOf( "."c ) + 1
 )
    End Function

    ' Display the argument and the incremented and decremented values.
    Sub DecIncrDecrUnary( argument as Decimal
 )

        Dim toBeIncr As Decimal
 = argument
        Dim toBeDecr As Decimal
 = argument

        Console.WriteLine( "{0,-36}{1}", "Decimal
 argument: ", _
            argument )

        ' The op_Increment and op_Decrement operators must be 
        ' explicitly coded in Visual Basic.

        ' Catch the exception if the increment operator throws one.
        Console.Write( "{0,-36}", "Decimal.op_Increment(
 argument )" )
        Try
            toBeIncr = Decimal.op_Increment( toBeIncr )
            Console.WriteLine( "{0}", toBeIncr )
        Catch ex As Exception
            Console.WriteLine( "{0}", GetExceptionType(
 ex ) )
        End Try

        ' Catch the exception if the decrement operator throws one.
        Console.Write( "{0,-36}", "Decimal.op_Decrement(
 argument )" )
        Try
            toBeDecr = Decimal.op_Decrement( toBeDecr )
            Console.WriteLine( "{0}", toBeDecr )
        Catch ex As Exception
            Console.WriteLine( "{0}", GetExceptionType(
 ex ) )
        End Try
            
        Console.WriteLine( )
    End Sub

    Sub Main( )
        Console.WriteLine( _
            "This example of the Decimal increment, decrement,
 " & _
            "unary negation, " & vbCrLf &
 "and unary plus " & _
            "operators generates the following output. It "
 & vbCrLf & _
            "displays the results of the operators on several
 " & _
            "Decimal values." & vbCrLf  )

        ' Create objects to compare with the reference.
        DecIncrDecrUnary( 0.000000123D )
        DecIncrDecrUnary( New Decimal( 123000000,
 0, 0, false, 9 ) )

        ' The op_UnaryNegation and op_UnaryPlus operators must be
        ' explicitly coded in Visual Basic. If unary + or - is used
,
        ' other methods are called.
        DecIncrDecrUnary( Decimal.op_UnaryNegation( _
            New Decimal( 123000000, 0, 0, false,
 9 ) ) )
        DecIncrDecrUnary( Decimal.op_UnaryPlus( Decimal.MaxValue
 ) )
        DecIncrDecrUnary( Decimal.op_UnaryNegation( Decimal.MaxValue
 ) )
        DecIncrDecrUnary( Decimal.op_UnaryPlus( _
            7.5000000000000000000000000001D ) )
    End Sub
End Module 

' This example of the Decimal increment, decrement, unary negation,
' and unary plus operators generates the following output. It
' displays the results of the operators on several Decimal values.
' 
' Decimal argument:                   0.000000123
' Decimal.op_Increment( argument )    1.000000123
' Decimal.op_Decrement( argument )    -0.999999877
' 
' Decimal argument:                   0.123000000
' Decimal.op_Increment( argument )    1.123000000
' Decimal.op_Decrement( argument )    -0.877000000
' 
' Decimal argument:                   -0.123000000
' Decimal.op_Increment( argument )    0.877000000
' Decimal.op_Decrement( argument )    -1.123000000
' 
' Decimal argument:                   79228162514264337593543950335
' Decimal.op_Increment( argument )    OverflowException
' Decimal.op_Decrement( argument )    79228162514264337593543950334
' 
' Decimal argument:                   -79228162514264337593543950335
' Decimal.op_Increment( argument )    -79228162514264337593543950334
' Decimal.op_Decrement( argument )    OverflowException
' 
' Decimal argument:                   7.5000000000000000000000000001
' Decimal.op_Increment( argument )    8.500000000000000000000000000
' Decimal.op_Decrement( argument )    6.5000000000000000000000000001

// Example of the decimal increment, decrement, unary negation, and
 
// unary plus operators.
using System;

class DecIncrDecrUnaryDemo
{
    // Get the exception type name; remove the namespace prefix.
    public static string
 GetExceptionType( Exception ex ) 
    {
        string exceptionType = ex.GetType( ).ToString( );
        return exceptionType.Substring( 
            exceptionType.LastIndexOf( '.' ) + 1 );
    }

    // Display the argument and the incremented and decremented values.
    public static void DecIncrDecrUnary(
 decimal argument )
    {
        decimal toBeIncr = argument;
        decimal toBeDecr = argument;

        Console.WriteLine( "{0,-26}{1}", "decimal argument: ",
 
            argument );

        // Catch the exception if the increment operator throws one.
        Console.Write( "{0,-26}", "argument ++" );
        try
        {
            toBeIncr ++;
            Console.WriteLine( "{0}", toBeIncr );
        }
        catch( Exception ex )
        {
            Console.WriteLine( "{0}", GetExceptionType( ex ) );
        }

        // Catch the exception if the decrement operator throws one.
        Console.Write( "{0,-26}", "argument --" );
        try
        {
            toBeDecr --;
            Console.WriteLine( "{0}", toBeDecr );
        }
        catch( Exception ex )
        {
            Console.WriteLine( "{0}", GetExceptionType( ex ) );
        }
            
        Console.WriteLine( );
    }

    public static void Main(
 )
    {
        Console.WriteLine( "This example of the decimal increment, " +
            "decrement, unary negation, \nand unary plus operators " +
            "generates the following output. It \ndisplays the " +
            "results of the operators on several decimal values.\n" );

        // Create objects to compare with the reference.
        DecIncrDecrUnary( 0.000000123M );
        DecIncrDecrUnary( new decimal( 123000000, 0, 0, false,
 9 ) );
        DecIncrDecrUnary( - new decimal( 123000000, 0, 0, false,
 9 ) );
        DecIncrDecrUnary( + decimal.MaxValue );
        DecIncrDecrUnary( - decimal.MaxValue );
        DecIncrDecrUnary( + 7.5000000000000000000000000001M );
    }
}

/*
This example of the decimal increment, decrement, unary negation,
and unary plus operators generates the following output. It
displays the results of the operators on several decimal values.

decimal argument:         0.000000123
argument ++               1.000000123
argument --               -0.999999877

decimal argument:         0.123000000
argument ++               1.123000000
argument --               -0.877000000

decimal argument:         -0.123000000
argument ++               0.877000000
argument --               -1.123000000

decimal argument:         79228162514264337593543950335
argument ++               OverflowException
argument --               79228162514264337593543950334

decimal argument:         -79228162514264337593543950335
argument ++               -79228162514264337593543950334
argument --               OverflowException

decimal argument:         7.5000000000000000000000000001
argument ++               8.500000000000000000000000000
argument --               6.5000000000000000000000000001
*/

C++

// Example of the Decimal increment, decrement, unary negation, and
 
// unary plus operators.
using namespace System;

// Get the exception type name; remove the namespace prefix.
String^ GetExceptionType( Exception^ ex )
{
   String^ exceptionType = ex->GetType()->ToString();
   return exceptionType->Substring( exceptionType->LastIndexOf(
 '.' ) + 1 );
}


// Display the argument and the incremented and decremented values.
void DecIncrDecrUnary( Decimal argument )
{
   Decimal toBeIncr = argument;
   Decimal toBeDecr = argument;
   Console::WriteLine( "{0,-26}{1}", "Decimal argument: ", argument
 );
   
   // Catch the exception if the increment operator throws one.
   Console::Write( "{0,-26}", "argument ++" );
   try
   {
      toBeIncr++;
      Console::WriteLine( "{0}", toBeIncr );
   }
   catch ( Exception^ ex ) 
   {
      Console::WriteLine( "{0}", GetExceptionType( ex ) );
   }

   
   // Catch the exception if the decrement operator throws one.
   Console::Write( "{0,-26}", "argument --" );
   try
   {
      toBeDecr--;
      Console::WriteLine( "{0}", toBeDecr );
   }
   catch ( Exception^ ex ) 
   {
      Console::WriteLine( "{0}", GetExceptionType( ex ) );
   }

   Console::WriteLine();
}

int main()
{
   Console::WriteLine( "This example of the Decimal increment, "
   "decrement, unary negation, \nand unary plus operators "
   "generates the following output. It \ndisplays the "
   "results of the operators on several Decimal values.\n" );
   
   // Create objects to compare with the reference.
   DecIncrDecrUnary( Decimal::Parse( "0.000000123" ) );
   DecIncrDecrUnary( Decimal(123000000,0,0,false,9) );
   DecIncrDecrUnary(  -Decimal(123000000,0,0,false,9) );
   DecIncrDecrUnary(  +Decimal::MaxValue );
   DecIncrDecrUnary(  -Decimal::MaxValue );
   DecIncrDecrUnary(  +Decimal::Parse( "7.5000000000000000000000000001"
 ) );
}

/*
This example of the Decimal increment, decrement, unary negation,
and unary plus operators generates the following output. It
displays the results of the operators on several Decimal values.

Decimal argument:         0.000000123
argument ++               1.000000123
argument --               -0.999999877

Decimal argument:         0.123000000
argument ++               1.123000000
argument --               -0.877000000

Decimal argument:         -0.123000000
argument ++               0.877000000
argument --               -1.123000000

Decimal argument:         79228162514264337593543950335
argument ++               OverflowException
argument --               79228162514264337593543950334

Decimal argument:         -79228162514264337593543950335
argument ++               -79228162514264337593543950334
argument --               OverflowException

Decimal argument:         7.5000000000000000000000000001
argument ++               8.500000000000000000000000000
argument --               6.5000000000000000000000000001
*/

// Example of the decimal increment, decrement, unary negation, and
 
// unary plus operators.
import System.*;

class DecIncrDecrUnaryDemo
{
    // Get the exception type name; remove the namespace prefix.
    public static String GetExceptionType(Exception
 ex)
    {
        String exceptionType = ex.GetType().ToString();
        return exceptionType.Substring((exceptionType.LastIndexOf('.')
 + 1));
    } //GetExceptionType

    // Display the argument and the incremented and decremented values.
    public static void DecIncrDecrUnary(System.Decimal
 argument)
    {
        System.Decimal toBeIncr = argument;
        System.Decimal toBeDecr = argument;
        
        Console.WriteLine("{0,-26}{1}", "decimal argument: ",
 argument);
        
        // Catch the exception if the increment operator throws one.
        Console.Write("{0,-26}", "argument ++");
        try {
            toBeIncr =System.Decimal.Add(toBeIncr,System.Convert.ToDecimal(1));
            Console.WriteLine("{0}", toBeIncr);
        }
        catch(System.Exception  ex){        
            Console.WriteLine("{0}",(ex.GetType()));
        }
        
        // Catch the exception if the decrement operator throws one.
        Console.Write("{0,-26}", "argument --");
        try {
            toBeDecr= System.Decimal.Subtract(toBeIncr,
                System.Convert.ToDecimal(1));
            Console.WriteLine("{0}", toBeDecr);
        }
        catch(System.Exception  ex){        
            Console.WriteLine("{0}", (ex.GetType()));
        }        
        Console.WriteLine();
    } //DecIncrDecrUnary

    public static void main(String[]
 args)
    {

        Console.WriteLine(("This example of the decimal increment, " 
            + "decrement, unary negation, \nand unary plus operators "
 
            + "generates the following output. It \ndisplays the " 
            + "results of the operators on several decimal values.\n"));
        
        // Create objects to compare with the reference.
        DecIncrDecrUnary(System.Convert.ToDecimal(0.000000123));
        DecIncrDecrUnary(new System.Decimal(123000000, 0, 0, false
,
            System.Convert.ToByte(9)));
        DecIncrDecrUnary(System.Decimal.Negate(new System.Decimal(123000000
,
            0, 0, false,System.Convert.ToByte(9))));
        DecIncrDecrUnary(System.Decimal.MaxValue);
        DecIncrDecrUnary(System.Decimal.Negate(System.Decimal.MaxValue));
        DecIncrDecrUnary(System.Convert.ToDecimal
            (7.5000000000000000000000000001));
    } //main
} //DecIncrDecrUnaryDemo

/*
decimal argument:         0.000000123
argument ++               1.000000123
argument --               0.000000123

decimal argument:         0.123000000
argument ++               1.123000000
argument --               0.123000000

decimal argument:         -0.123000000
argument ++               0.877000000
argument --               -0.123000000

decimal argument:         79228162514264337593543950335
argument ++               System.OverflowException
argument --               79228162514264337593543950334

decimal argument:         -79228162514264337593543950335
argument ++               -79228162514264337593543950334
argument --               -79228162514264337593543950335

decimal argument:         7.5
argument ++               8.5
argument --               7.5
*/

プラットフォーム

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

開発プラットフォームの中には、.NET Framework によってサポートされていないバージョンがあります。サポートされているバージョンについては、「システム要件」を参照してください。

バージョン情報

.NET Framework
サポート対象 : 2.0、1.1、1.0
.NET Compact Framework
サポート対象 : 2.0、1.0

参照

関連項目
Decimal 構造体
Decimal メンバ
System 名前空間

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Decimal.op_UnaryPlus メソッドとは？ わかりやすく解説

Decimal.op_UnaryPlus メソッド

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Decimal.op_UnaryPlus メソッドとは？わかりやすく解説