Operator += (Add and Assign)


Adds and assigns a value to a variable

Syntax:
declare operator += ( 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, byref rhs as string )
declare operator += ( byref lhs as wstring, byref rhs as wstring )

Usage:
lhs += rhs

Parameters:
lhs
The variable 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 value to a variable. 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 &= (Concatenate and assign).

This operator can be overloaded for user-defined types as a member Operator using the appropriate syntax.

Examples:
Dim n As Double
n = 6
n += 1
Print n
Sleep

Output:
7


Dialect Differences:
Differences from QB:
See also:
Back to Assignment Operators
Back to Operators
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