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Double.IsInfinity(Double) Method
Definition
- Namespace:
- System
- Assemblies:
- mscorlib.dll, System.Runtime.dll
- Assemblies:
- netstandard.dll, System.Runtime.dll
- Assembly:
- System.Runtime.dll
- Assembly:
- mscorlib.dll
- Assembly:
- netstandard.dll
- Source:
- Double.cs
- Source:
- Double.cs
- Source:
- Double.cs
- Source:
- Double.cs
- Source:
- Double.cs
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
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 -> boolPublic Shared Function IsInfinity (d As Double) As BooleanParameters
- d
- Double
A double-precision floating-point number.
Returns
true if d evaluates to PositiveInfinity or NegativeInfinity; otherwise, false.
Implements
Examples
The following code example illustrates the use of IsInfinity:
// 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
Remarks
Floating-point operations return PositiveInfinity or NegativeInfinity to signal an overflow condition.
Applies to
See also
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