Single.IsPositiveInfinity() Method in C# with Examples

The Single.IsPositiveInfinity() method in C# is used to return a value indicating whether the specified number evaluates to positive infinity.

Syntax

The syntax is as follows −

public static bool IsPositiveInfinity (float val);

Above, the parameter val is a single-precision floating-point number.

Example

Let us now see an example −

 Live Demo

using System;
public class Demo {
   public static void Main() {
      float f1 = -25.0f/0.0f;
      float f2 = 5.0f/0.0f;
      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("Is Value1 NaN? = "+Single.IsNaN(f1));
      Console.WriteLine("Is Value1 a positive infinity? = "+Single.IsPositiveInfinity(f1));
      Console.WriteLine("
Value2 = "+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));
      Console.WriteLine("Is Value2 NaN? = "+Single.IsNaN(f2));
      Console.WriteLine("Is Value2 a positive infinity? = "+Single.IsPositiveInfinity(f2));
   }
}

Output

This will produce the following output −

Value1 = -∞
Hashcode for Value1 = -8388608
TypeCode for Value1 = Single
Is Value1 value is positive or negative infinity? = True
Is Value1 NaN? = False
Is Value1 a positive infinity? = False
Value2 = ∞
Hashcode for Value2 = 2139095040
TypeCode for Value2 = Single
Is Value2 value is positive or negative infinity? = True
Is Value2 NaN? = False
Is Value2 a positive infinity? = True

Example

Let us now see another example −

 Live Demo

using System;
public class Demo {
   public static void Main() {
      float f1 = 10.0f/0.0f;
      float f2 = -3.0f;
      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("Is Value1 NaN? = "+Single.IsNaN(f1));
      Console.WriteLine("Is Value1 a positive infinity? = "+Single.IsPositiveInfinity(f1));
      Console.WriteLine("
Value2 = "+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));
      Console.WriteLine("Is Value2 NaN? = "+Single.IsNaN(f2));
      Console.WriteLine("Is Value2 a positive infinity? = "+Single.IsPositiveInfinity(f2));
   }
}

Output

This will produce the following output −

Value1 = ∞
Hashcode for Value1 = 2139095040
TypeCode for Value1 = Single
Is Value1 value is positive or negative infinity? = True
Is Value1 NaN? = False
Is Value1 a positive infinity? = True
Value2 = -3
Hashcode for Value2 = -1069547520
TypeCode for Value2 = Single
Is Value2 value is positive or negative infinity? = False
Is Value2 NaN? = False
Is Value2 a positive infinity? = False