Operator = (Equal)

Compares two expressions for equality

Syntax:
Usage:
result = lhs = rhs

Parameters:
lhs
The left-hand side expression to compare to.
rhs
The right-hand side expression to compare to.
T
Any pointer type.

Return Value:
Returns negative one (-1) if expressions are equal, or zero (0) if unequal.

Description:
Operator = (Equality) is a binary operator that compares two expressions for equality and returns the result - a boolean value mainly in the form of an Integer: negative one (-1) for true and zero (0) for false. Only if the left and right-hand side types are both Boolean, the return type is also Boolean. The arguments are not modified in any way.

This operator can be overloaded to accept user-defined types as well.

Operator = (Equality) should not be confused with initializations or assignments, both of which also use the "=" symbol.

Examples:

Dim i As Integer = 0    '' initialization: initialise i with a value of 0
i = 420                 '' assignment: assign to i the value of 420

If (i = 69) Then        '' equation: compare the equality of the value of i and 69
Print "serious error: i should equal 420"
End -1
End If
Operator <> (Inequality) is complement to Operator = (Equality), and is functionally identical when combined with Operator Not (Bit-wise Complement).

If (420 = 420) Then Print "(420 = 420) is true."
If Not (69 <> 69) Then Print "not (69 <> 69) is true."

Dialect Differences:
• In the -lang qb dialect, this operator cannot be overloaded.

Differences from QB:
• none