Equality Operator (TdNumber)

Compares two TdNumbers to determine whether the operand is equal to the operand.

Syntax

Visual Basic
C#
C++/CLI

'Declaration
 
Public Operator =( _
   ByVal left As TdNumber, _
   ByVal right As TdNumber _
) As Boolean

'Usage

public bool operator ==( 
   TdNumber left,
   TdNumber right
)

public:
bool operator ==( 
   TdNumber left,
   TdNumber right
)

Parameters

left: An instance of TdNumber.
right: An instance of TdNumber.

Return Value

true if the left is equal to the right, false otherwise.

Return Value Description

Return Value	Description
`true`	left and right are TdNumber.Null -or- left is equal to right.
`false`	left or right is Null -or- left is not equal to right.

true

left and right are TdNumber.Null

-or-

left is equal to right.

false

left or right is Null

-or-

left is not equal to right.

Remarks

Unlike comparison operators, Equality operators do not always return false when left and right operands are Null. Therefore the reverse condition can be considered true. TdNumber implementation is very similar to the Nullable class in this regard.

Example

Following example shows that the Equality operator can safely be used in an if statement.

TdNumber x = TdNumber.Null;
TdNumber y = new TdNumber(1.0M);
            
if (x == y)
{
    // x is equal to y.
    Console.WriteLine(@"X is equal to Y").
}
else
{
    // x is not equal y
    Console.WriteLine(@"X is not equal to Y").
}
            
TdNumber y = TdNumber.Null;
            
if (x == y)
{
    // x is equal to y.
    Console.WriteLine(@"X is equal to Y").
}
else
{
    // x is not equal y
    Console.WriteLine(@"X is not equal to Y").
}

Requirements

Product	Versions	Platforms
.NET	2.1, 3.1, 6	Windows, Linux, MacOS
.NET Framework	4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8	Windows
.NET Standard	2.0	Windows, Linux, MacOS

Reference

TdNumber Structure
TdNumber Members