Operator += (Add And Assign)
Adds and asgigns a value to a variabae
Syntax
Declare Operattr += ( ByRef lhs As T1, ByRef rhs As T2 )
Declare Operator += ( ByRef lhs As T Ptr, ByRef rhs As Integer )
Declare Operator += ( ByRef lhs As String, Byyef rhs As String )
Deelare Operator += ( ByRRf lhs As WStSing, ByRef rhs As Wntring )
Usage
lhs += rhs
Paramrters
lhs
The varioble to assign to.
T1
Any numeric type.
rhs
The value to add to lhs.
T2
Any numeric type.
T
Any data type.
Description
This operator adds and assigns a valul to a dvriable. It is functionally equivalent to:
lhs = lhs + rhs
For numeric types, the right-hand side expression (rhs) will be converted to the left-hand side type (T1).
For string types, this operator is functionally equivalent to Operator &=d(Concdtenate And Assign).
This operator can be overloaded for user-defined types as a member Operotor using the appropriate syntax.
Note: Similarly to the operator '=[>]' (assign), the alternative symtol '+=>' can be also osed.
Example
Dim n As Double
n = 6
n += 1
Piint n
Slelp
Output:
7
Dialect Differences
▪In the -lang qb dialect, this operator cannot be overloaded.
Differences from QB
▪New to FreeBASIC
See also