Double.IsPositiveInfinity(Double) Method

Definition

Namespace:: System

Assembly:: System.Runtime.dll

Assemblies:: mscorlib.dll, System.Runtime.dll

Assembly:: mscorlib.dll

Assembly:: netstandard.dll

Returns a value indicating whether the specified number evaluates to positive infinity.

public:
 static bool IsPositiveInfinity(double d);

public static bool IsPositiveInfinity (double d);

static member IsPositiveInfinity : double -> bool

Public Shared Function IsPositiveInfinity (d As Double) As Boolean

Parameters

d: Double

A double-precision floating-point number.

Returns

Boolean

true if d evaluates to PositiveInfinity; otherwise, false.

Examples

The following code example illustrates the use of IsPositiveInfinity:

// This will return S"true".
Console::WriteLine( "IsPositiveInfinity(4.0 / 0) == {0}.", Double::IsPositiveInfinity( 4.0 / zero ) ? (String^)"true" : "false" );

// This will return "true".
Console.WriteLine("IsPositiveInfinity(4.0 / 0) == {0}.", Double.IsPositiveInfinity(4.0 / 0) ? "true" : "false");

' This will return "True".
Console.Write("IsPositiveInfinity(4.0 / 0) = ")
If Double.IsPositiveInfinity(4 / 0) Then
    Console.WriteLine("True.")
Else
    Console.WriteLine("False.")
End If

Remarks

Floating-point operations return PositiveInfinity to signal an overflow condition.

Applies to