FBWiki: KeyPgOpNotEqual

Operator <> (Not equal)

Compares two expressions for inequality

Syntax:declare operator <> ( byref lhs as byte, byref rhs as byte ) as integer declare operator <> ( byref lhs as ubyte, byref rhs as ubyte ) as integer declare operator <> ( byref lhs as short, byref rhs as short ) as integer declare operator <> ( byref lhs as ushort, byref rhs as ushort ) as integer declare operator <> ( byref lhs as integer, byref rhs as integer ) as integer declare operator <> ( byref lhs as uinteger, byref rhs as uinteger ) as integer declare operator <> ( byref lhs as longint, byref rhs as longint ) as integer declare operator <> ( byref lhs as ulongint, byref rhs as ulongint ) as integer declare operator <> ( byref lhs as string, byref rhs as string ) as integer declare operator <> ( byref lhs as zstring, byref rhs as zstring ) as integer declare operator <> ( byref lhs as wstring, byref rhs as wstring ) as integer declare operator <> ( byref lhs as T, byref rhs as T ) as integer
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 not equal, or zero (0) if equal.

Description:

Operator <> (Not equal) is a binary operator that compares two expressions for inequality and returns the result - a boolean value in the form of an Integer: negative one (-1) for true and zero (0) for false. The arguments are not modified in any way.

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

Examples:

Dim As String a = "hello", b = "world"
Dim As Integer i = 10, j = i

If (a <> b) Then
Print a & " does not equal " & b
End If

If (i <> j) Then
Print "error: " & i & " does not equal " & j
End If

Operator = (Equal) is complement to Operator <> (Not equal), and is functionally identical when combined with Operator Not (Bit-wise Complement).

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

Dialect Differences:

In the -lang qb dialect, this operator cannot be overloaded.

Differences from QB:

none

See also:

Operator = (Equal)

Back to Relational Operators

Back to Operators

FBWiki : KeyPgOpNotEqual

Operator <> (Not equal)