MACROMEDIA FLASH MX 2004 - ACTIONSCRIPT, Reference Manual

Page: 265 / 816

>>> (bitwise unsigned right shift) 265
See also
<< (bitwise left shift)
>>> (bitwise unsigned right shift)
Availability
Flash Player 5.
Usage
expression1 >>> expression2
Parameters
expression1
A number or expression to be shifted right.
expression2
A number or expression that converts to an integer between 0 and 31.
Returns
Nothing.
Description
Operator (bitwise); the same as the bitwise right shift (
>>
) operator except that it does not
preserve the sign of the original
expression
because the bits on the left are always filled with 0.
Example
The following example converts -1 to a 32-bit integer and shifts it 1 bit to the right.
x = -1 >>> 1
The result of the above operation is as follows:
x = 2147483647
This is because -1 decimal is 11111111111111111111111111111111 binary (thirty-two 1’s),
and when you shift right (unsigned) by 1 bit, the least significant (rightmost) bit is discarded, and
the most significant (leftmost) bit is filled with a 0. The result is
01111111111111111111111111111111 binary, which represents the 32-bit integer
2147483647.
See also
>>= (bitwise right shift and assignment)