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Operator Concatenate and Assign

Paul Squires edited this page Sep 19, 2026 · 1 revision

Home › Operators › Operator &= (Concatenate And Assign)

Operator &= (Concatenate And Assign)

Appends and assigns a string onto another string

Syntax

Declare Operator &= ( ByRef lhs As String, ByRef rhs As T2 )
Declare Operator &= ( ByRef lhs As WString, ByRef rhs As T2 )

Parameters

  • lhs
  • rhs
  • lhs
  • T2

Description

This operator appends one string onto another. The right-hand side expression (rhs) is converted to a string before concatenation. It is functionally equivalent to,
lhs = lhs & rhs
where the result is assigned back to the left-hand side string.

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

Note: This operator exists in C/C++ with a different meaning - there it performs a bitwise And=. Note: Similarly to the operator '=[>]' (assign), the alternative symbol '&=>' can be also used.

Remarks

Usage

lhs &= rhs

Dialect Differences

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

Differences from QB

  • New to FreeBASIC

See also

Examples

Dim s As String = "Hello, "

s &= " world!"

Print s

will produce the output:

Hello, world!

Category: Operators
Kind: operator


Reproduced from the FreeBASIC Wiki Manual under the GNU Free Documentation License 1.3 — with no Invariant Sections, no Front-Cover Texts and no Back-Cover Texts. Copyright © the FreeBASIC project and wiki contributors. See License.

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