Makale
11/18/2011

BigInteger.Equality Operator (UInt64, BigInteger)

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Returns a value that indicates whether an unsigned long integer value and a BigInteger value are equal.

This API is not CLS-compliant.

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

Syntax

'Declaration
Public Shared Operator = ( _
    left As ULong, _
    right As BigInteger _
) As Boolean

public static bool operator ==(
    ulong left,
    BigInteger right
)

Parameters

left
Type: System.UInt64
The first value to compare.

right
Type: System.Numerics.BigInteger
The second value to compare.

Return Value

Type: System.Boolean
true if the left and right parameters have the same value; otherwise, false.

Remarks

The Equality(UInt64, BigInteger) method defines the equality comparison operation for BigInteger values. It enables code such as the following:

Dim bigNumber As BigInteger = BigInteger.Pow(2, 63) - BigInteger.One
Dim uNumber As ULong = CULng(Int64.MaxValue And CULng(&H7FFFFFFFFFFFFFFF))
If uNumber = bigNumber Then
   ' Do something...
End If

BigInteger bigNumber = BigInteger.Pow(2, 63) - BigInteger.One;
ulong uNumber = Int64.MaxValue & 0x7FFFFFFFFFFFFFFF;
if (uNumber == bigNumber)
{
   // Do something...
}

Languages that do not support custom operators can call the BigInteger.Equals(UInt64) instance method instead.

Version Information

Silverlight

Supported in: 5, 4

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

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