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Operator Imp Implication and Assign

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

Home › Operators › Operator Imp= (Implication And Assign)

Operator Imp= (Implication And Assign)

Performs a bitwise-imp (implication) and assigns the result to a variable

Syntax

Declare Operator Imp= ( ByRef lhs As T1, ByRef rhs As T2 )

Parameters

  • lhs
  • T1
  • rhs
  • lhs
  • T2

Description

This operator performs a bitwise-imp and assigns the result to a variable (for conversion of a boolean to an integer, false or true boolean value becomes 0 or -1 integer value). It is functionally equivalent to:

lhs = lhs Imp rhs

Imp is a bitwise operator which is the same as (Not lhs) Or rhs. Imp= compares each bit of its operands, lhs and rhs, and if the bit in lhs is 0 or the bit in rhs is 1, then the corresponding bit in the first operand, lhs, is set to 1, otherwise it is set to 0.

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

Note: Similarly to the operator '=[>]' (assign), the alternative symbol 'Imp=>' can be also used.

Remarks

Usage

lhs Imp= rhs

Dialect Differences

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

Differences from QB

  • New to FreeBASIC

See also

Examples

Dim As UByte a = &b00110011

Dim As UByte b = &b01010101

a Imp= b

'' Result    a = &b11011101

Print Bin(a)

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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