Equality Operator

Double.Equality Operator (Double, Double)

.NET Framework 4.6 and 4.5

Returns a value that indicates whether two specified Double values are equal.

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

public static bool operator ==(
	double left,
	double right


Type: System.Double

The first value to compare.

Type: System.Double

The second value to compare.

Return Value

Type: System.Boolean

true if left and right are equal; otherwise, false.

The Equality method defines the equality operator for Double values.

If two Double.NaN values are tested for equality by using the equality operator, the result is false; two Double.NaN values are not considered equal. If they are tested for equality by calling the Equals method, the result is true. When you want to determine whether the value of a Double is not a number (NaN), an alternative is to call the IsNaN method.

Universal Windows Platform
Available since 4.5
.NET Framework
Available since 4.0
Portable Class Library
Supported in: portable .NET platforms
Windows Phone Silverlight
Available since 8.0
Windows Phone
Available since 8.1
Return to top
© 2015 Microsoft