Double.MinValue Double.MinValue Double.MinValue Double.MinValue Field

定義

Double の最小有効値を表します。Represents the smallest possible value of a Double. このフィールドは定数です。This field is constant.

public: double MinValue = -1.79769313486232E+308;
public const double MinValue = -1.79769313486232E+308;
val mutable MinValue : double
Public Const MinValue As Double  = -1.79769313486232E+308

フィールド値

次のコード例は、のMinValue使用方法を示しています。The following code example illustrates the use of MinValue:

public ref class Temperature
{
public:
   static property double MinValue 
   {
      double get()
      {
         return Double::MinValue;
      }
   }

   static property double MaxValue 
   {
      double get()
      {
         return Double::MaxValue;
      }
   }

protected:
   // The value holder
   double m_value;

public:
   property double Value 
   {
      double get()
      {
         return m_value;
      }
      void set( double value )
      {
         m_value = value;
      }
   }

   property double Celsius 
   {
      double get()
      {
         return (m_value - 32.0) / 1.8;
      }
      void set( double value )
      {
         m_value = 1.8 * value + 32.0;
      }
   }
};
public class Temperature {
    public static double MinValue {
        get {
            return Double.MinValue;
        }
    }

    public static double MaxValue {
        get {
            return Double.MaxValue;
        }
    }

    // The value holder
    protected double m_value;

    public double Value {
        get {
            return m_value;
        }
        set {
            m_value = value;
        }
    }

    public double Celsius {
        get {
            return (m_value-32.0)/1.8;
        }
        set {
            m_value = 1.8*value+32.0;
        }
    }
}
Public Class Temperature

    Public Shared ReadOnly Property MinValue() As Double
        Get
            Return Double.MinValue
        End Get
    End Property

    Public Shared ReadOnly Property MaxValue() As Double
        Get
            Return Double.MaxValue
        End Get
    End Property

    ' The value holder
    Protected m_value As Double

    Public Property Value() As Double
        Get
            Return m_value
        End Get
        Set(ByVal Value As Double)
            m_value = Value
        End Set
    End Property

    Public Property Celsius() As Double
        Get
            Return (m_value - 32) / 1.8
        End Get
        Set(ByVal Value As Double)
            m_value = Value * 1.8 + 32
        End Set
    End Property
End Class

注釈

この定数の値は、負の 1.7976931348623157 E + 308 です。The value of this constant is negative 1.7976931348623157E+308.

よりDouble.MinValue小さい演算の結果がDouble.NegativeInfinityです。The result of an operation that is less than Double.MinValue is Double.NegativeInfinity. 次の例ではDouble.NegativeInfinity 、結果がよりDouble.MinValue小さい場合、減算および乗算演算の結果が返されます。In the following example, Double.NegativeInfinity results from subtraction and multiplication operations when the result is less than Double.MinValue.

using System;

public class Example
{
   public static void Main()
   {
      double result1 = -7.997e307 + -9.985e307;
      Console.WriteLine("{0} (Negative Infinity: {1})", 
                        result1, Double.IsNegativeInfinity(result1));
      
      double result2 = -1.5935e250 * 7.948e110;
      Console.WriteLine("{0} (Negative Infinity: {1})", 
                        result2, Double.IsNegativeInfinity(result2));
   }
}
// The example displays the following output:
//    -Infinity (Negative Infinity: True)
//    -Infinity (Negative Infinity: True)
Module Example
   Public Sub Main()
      Dim result1 As Double = -7.997e307 + -9.985e307
      Console.WriteLine("{0} (Negative Infinity: {1})", 
                        result1, Double.IsNegativeInfinity(result1))
      
      Dim result2 As Double = -1.5935e250 * 7.948e110
      Console.WriteLine("{0} (Negative Infinity: {1})", 
                        result2, Double.IsNegativeInfinity(result2))
   End Sub
End Module
' The example displays the following output:
'    -Infinity (Negative Infinity: True)
'    -Infinity (Negative Infinity: True)

適用対象