Revision [21003]
This is an old revision of KeyPgOpCombineAdd made by fxm on 2016-03-13 05:09:28.
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 )
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.
For string types, this operator is functionally equivalent to Operator &= (Concatenate and assign).
This operator can be overloaded for user-defined types.
Examples:
Dim n As Double
n = 6
n += 1
Print n
Sleep
n = 6
n += 1
Print n
Sleep
Output:
7
Dialect Differences:
- In the -lang qb dialect, this operator cannot be overloaded.
Differences from QB:
- New to FreeBASIC
See also:
Back to Assignment Operators
Back to Operators
