Shifts the bits of a numeric expression to the right
Syntax
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). Numerically, the result is the same as "
Int(lhs / 2 ^ rhs)". For example, "
&b0101 Shr 1" returns the binary number
&b010, and "
5 Shr 1" returns
2.
If the left-hand side expression is signed and negative, the sign bit is copied in the newly created bits on the left after the shift. For example, "
-5 Shr 2" returns
-2.
Neither of the operands are modified in any way.
The results of this operation are undefined for values of
rhs less than zero, or greater than or equal to the number of bits in the result's data type.
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
See also