Operator Shr (Shift Right)
Shifts the bits of a numeric expression to the right
Syntax
`
Declare Operator Shr ( ByRef lhs As Integer, ByRef rhs As Integer ) As Integer
Declare Operator Shr ( ByRef lhs As UInteger, ByRef rhs As UInteger ) As UInteger
Declare Operator Shr ( ByRef lhs As LongInt, ByRef rhs As LongInt ) As LongInt
Declare Operator Shr ( ByRef lhs As ULongInt, ByRef rhs As ULongInt ) As ULongInt
`
Usage
`
result = lhs Shr rhs
`
Parameters
`lhs`
The left-hand side expression.
`rhs`
The right-hand side shift expression.
Return Value
Returns the result of `lhs` being shifted right `rhs` number of times.
Description
`Operator Shr` (Shift right) shifts all of the bits in the left-hand side expression (`lhs`) right a number of times specified by the right-hand side expression (`rhs`). This has the effect of dividing `lhs` by two for each shift. For example, "`&b0101 Shr 1`" returns the binary number `&b010`, and "`5 Shr 1`" returns `2`.
If the left-hand side expression is signed, the sign bit is copied in the newly created bits on the left after the shift.
Neither of the operands are modified in any way.
This operator can be overloaded for user-defined types.
Example
`
'Halve a number
For i As Integer = 0 To 10
Print 1000 Shr i, Bin(1000 Shr i, 16)
Next i
`
Output:

     1000         0000001111101000
     500          0000000111110100
     250          0000000011111010
     125          0000000001111101
     62           0000000000111110
     31           0000000000011111
     15           0000000000001111
     7            0000000000000111
     3            0000000000000011
     1            0000000000000001
     0            0000000000000000

Dialect Differences

- Not available in the -lang qb dialect unless referenced with the alias `__Shr`.

Differences from QB

- New to FreeBASIC

See also

- `Operator Shr= (Shift Right And Assign)`
- `Operator Shl (Shift Left)`
- `Bin`
- Mathematical Functions