例を使用したC＃のSingle.IsInfinity（）メソッド

C＃のSingle.IsInfinity（）メソッドは、指定された数値が負または正の無限大に評価されるかどうかを示す値を返すために使用されます。

構文

構文は次のとおりです-

public static bool IsInfinity (float val);

上記のvalは、単精度浮動小数点数です。

例

例を見てみましょう-

using System;
public class Demo {
   public static void Main(){
      float f1 = 19.3f;
      float f2 = Single.MaxValue;
      Console.WriteLine("Value1 = "+f1);
      Console.WriteLine("Hashcode for Value1 = "+f1.GetHashCode());
      Console.WriteLine("TypeCode for Value1 = "+f1.GetTypeCode());
      Console.WriteLine("Is Value1 value is positive or negative infinity? = "+Single.IsInfinity(f1));
      Console.WriteLine("\nValue2 = "+f2);
      Console.WriteLine("Hashcode for Value2 = "+f2.GetHashCode());
      Console.WriteLine("TypeCode for Value2 = "+f2.GetTypeCode());
      Console.WriteLine("Is Value2 value is positive or negative infinity? = "+Single.IsInfinity(f2));
   }
}

出力

これにより、次の出力が生成されます-

Value1 = 19.3
Hashcode for Value1 = 1100637798
TypeCode for Value1 = Single
Is Value1 value is positive or negative infinity? = False
Value2 = 3.402823E+38
Hashcode for Value2 = 2139095039
TypeCode for Value2 = Single
Is Value2 value is positive or negative infinity? = False

例

別の例を見てみましょう-

using System;
public class Demo {
   public static void Main(){
      float f1 = 5.0f/0.0f;
      float f2 = Single.MinValue;
      Console.WriteLine("Value1 = "+f1);
      Console.WriteLine("Hashcode for Value1 = "+f1.GetHashCode());
      Console.WriteLine("TypeCode for Value1 = "+f1.GetTypeCode());
      Console.WriteLine("Is Value1 value is positive or negative infinity? = "+Single.IsInfinity(f1));
      Console.WriteLine("\nValue2 = "+f2);
      Console.WriteLine("Hashcode for Value2 = "+f2.GetHashCode());
      Console.WriteLine("TypeCode for Value2 = "+f2.GetTypeCode());
      Console.WriteLine("Is Value2 value is positive or negative infinity? = "+Single.IsInfinity(f2));
   }
}

出力

これにより、次の出力が生成されます-

Value1 = ∞
Hashcode for Value1 = 2139095040
TypeCode for Value1 = Single
Is Value1 value is positive or negative infinity? = True
Value2 = -3.402823E+38
Hashcode for Value2 = -8388609
TypeCode for Value2 = Single
Is Value2 value is positive or negative infinity? = False