Operator AND= (Conjunction and Assign)

• Source: https://www.freebasic.net/wiki/wikka.php?wakka=KeyPgOpCombineAnd
• Last revised: 2019-09-27

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

Syntax

` declare operator And= ( byref lhs as T1, byref rhs as T2 )

`

Usage

` lhs And= rhs

`

Parameters

lhs

The variable to assign to.

T1

Any numeric or boolean type.

rhs

The value to perform a bitwise-and (conjunction) with lhs.

T2

Any numeric or boolean type.

Description

This operator performs a bitwise-and 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 and rhs

And= compares each bit of its operands, lhs and rhs, and if both bits are 1, then the corresponding bit in the first operand, lhs, is set to 1, otherwise it is set to 0.

And= cannot be used in conditional expressions.

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 'And=>' can be also used.

Examples

start GeSHi

' Using the AND= operator on two numeric values
Dim As UByte numeric_value1, numeric_value2
numeric_value1 = 15 '' 00001111
numeric_value2 = 30 '' 00011110

numeric_value1 And= numeric_value2

'' Result =  14  =     00001110
Print numeric_value1
Sleep

end GeSHi

Dialect Differences

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

Differences from QB

• New to FreeBASIC

See also

• And

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