Double.IsInfinity(Double) Method
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Returns a value indicating whether the specified number evaluates to negative or positive infinity.
public:
static bool IsInfinity(double d);
public:
static bool IsInfinity(double d) = System::Numerics::INumberBase<double>::IsInfinity;
public static bool IsInfinity (double d);
static member IsInfinity : double -> bool
Public Shared Function IsInfinity (d As Double) As Boolean
- d
- Double
A double-precision floating-point number.
true
if d
evaluates to PositiveInfinity or NegativeInfinity; otherwise, false
.
The following code example illustrates the use of IsInfinity:
// This will return S"true".
Console::WriteLine( "IsInfinity(3.0 / 0) == {0}.", Double::IsInfinity( 3.0 / zero ) ? (String^)"true" : "false" );
// This will return "true".
Console.WriteLine("IsInfinity(3.0 / 0) == {0}.", Double.IsInfinity(3.0 / 0) ? "true" : "false");
// This will return "true".
printfn $"IsInfinity(3.0 / 0) = %b{Double.IsInfinity(3. / 0.)}."
' This will return "True".
Console.Write("IsInfinity(3.0 / 0) = ")
If Double.IsPositiveInfinity(3 / 0) Then
Console.WriteLine("True.")
Else
Console.WriteLine("False.")
End If
Floating-point operations return PositiveInfinity or NegativeInfinity to signal an overflow condition.
Product | Versions |
---|---|
.NET | Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9 |
.NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
.NET Standard | 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 2.0, 2.1 |
UWP | 10.0 |
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