Operator And (Conjunction)operator

Returns the bitwise-and (conjunction) of two numeric values

Operatorsoperatordocumented

Syntax

Declare Operator And ( ByRef lhs As T1, ByRef rhs As T2 ) As Ret

Parameters

Name		Description
`lhs`		The left-hand side expression.
`T1`		Any numeric or boolean type.
`rhs`		The right-hand side expression.
`T2`		Any numeric or boolean type.
`Ret`		A numeric or boolean type (varies with
`T1`		and
`T2`		).

Return value

Returns the bitwise-and (conjunction) of the two operands.

Description

This operator returns the bitwise-and of its operands, a logical operation that results in a value with bits set depending on the bits of the operands (for conversion of a boolean to an integer, false or true boolean value becomes 0 or -1 integer value).

The truth table below demonstrates all combinations of a boolean-and operation:

Lhs Bit	Rhs Bit	Result
0	0	0
1	0	0
0	1	0
1	1	1

No short-circuiting is performed - both expressions are always evaluated.

The return type depends on the types of values passed. Byte, UByte and floating-point type values are first converted to Integer. If the left and right-hand side types differ only in signedness, then the return type is the same as the left-hand side type (T1), otherwise, the larger of the two types is returned. Only if the left and right-hand side types are both Boolean, the return type is also Boolean.

This operator can be overloaded for user-defined types.

Remarks

Usage



result = lhs And rhs

Dialect Differences

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

Differences from QB

None

Example

' Using the AND operator on two numeric values

Dim As UByte numeric_value1, numeric_value2

numeric_value1 = 15 '00001111

numeric_value2 = 30 '00011110



'Result =  14  =     00001110

Print numeric_value1 And numeric_value2

Sleep

' Using the AND operator on two conditional expressions

Dim As UByte numeric_value1, numeric_value2

numeric_value1 = 15

numeric_value2 = 25



If numeric_value1 > 10 And numeric_value1 < 20 Then Print "Numeric_Value1 is between 10 and 20"

If numeric_value2 > 10 And numeric_value2 < 20 Then Print "Numeric_Value2 is between 10 and 20"

Sleep



' This will output "Numeric_Value1 is between 10 and 20" because

' both conditions of the IF statement is true

' It will not output the result of the second IF statement because the first

' condition is true and the second is false.

Reference

Documented in KeyPgOpAnd.html