Double::IsPositiveInfinity Method (Double)


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

Namespace:   System
Assembly:  mscorlib (in mscorlib.dll)

static bool IsPositiveInfinity(
	double d


Type: System::Double

A double-precision floating-point number.

Return Value

Type: System::Boolean

true if d evaluates to PositiveInfinity; otherwise, false.

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

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" );

Universal Windows Platform
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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