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Int64.Equals Method (Int64)

Returns a value indicating whether this instance is equal to a specified Int64 value.

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

public bool Equals(
	long obj
)

Parameters

obj
Type: System.Int64

An Int64 value to compare to this instance.

Return Value

Type: System.Boolean
true if obj has the same value as this instance; otherwise, false.

Implements

IEquatable<T>.Equals(T)

This method implements the System.IEquatable<T> interface, and performs slightly better than Equals because it does not have to convert the obj parameter to an object.

Notes to Callers

Compiler overload resolution may account for an apparent difference in the behavior of the two Equals method overloads. If an implicit conversion between the obj argument and an Int64 is defined and the argument is not typed as an Object, compilers perform an implicit conversion and call the Equals(Int64) method. Otherwise, they call the Equals(Object) method, which always returns false if its obj argument is not an Int64 value. The following example illustrates the difference in behavior between the two method overloads. In the case of the Byte, SByte, Int16, UInt16, Int32, and UInt32 values, the first comparison returns true because the compiler automatically performs a widening conversion and calls the Equals(Int64) method, whereas the second comparison returns false because the compiler calls the Equals(Object) method.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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