Returns a value indicating whether the specified number evaluates to negative or positive infinity.
Assembly: mscorlib (in mscorlib.dll)
Syntax . . :: . Boolean
true if f evaluates to PositiveInfinity or NegativeInfinity; otherwise, false.
Public Shared Function IsInfinity ( _
f As Single _
) As Booleanpublic static bool IsInfinity(
float f
)public:
static bool IsInfinity(
float f
)static member IsInfinity :
f:float32 -> bool
Parameters
- f
- Type: System
. . :: . Single
A single-precision floating-point number.
Return Value
Type: Systemtrue if f evaluates to PositiveInfinity or NegativeInfinity; otherwise, false.
Remarks
Floating-point operations return PositiveInfinity or NegativeInfinity to signal an overflow condition.
Examples
The following code example demonstrates the IsInfinity method.
' This will return "True".
Console.Write("IsInfinity(3.0 / 0) = ")
If Single.IsPositiveInfinity(3 / 0) Then
Console.WriteLine("True.")
Else
Console.WriteLine("False.")
End If
// This will return "true".
Console.WriteLine("IsInfinity(3.0F / 0) == {0}.", Single.IsInfinity(3.0F / 0) ? "true" : "false");
// This will return S"true".
Console::WriteLine( "IsInfinity(3.0F / 0) == {0}.", Single::IsInfinity( 3.0F / zero ) ? (String^)"true" : "false" );
Platforms
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.