Last updated on
Apr 27, 2021 05:39:20 AM GMT
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Also Applies to ColdFusion
Description
Performs a bitwise mask set operation.
Returns
A number, bitwise masked with length bits of mask beginning at start.
Category
Function syntax
BitMaskSet(number, mask, start, length) |
See also
Parameters
Parameter |
Description |
|---|---|
number |
32-bit signed integer |
mask |
32-bit signed integer; mask |
start |
Integer, in the range 0-31, inclusive; start bit for mask |
length |
Integer, in the range 0-31, inclusive; length of mask |
Usage
Bit functions operate on 32-bit signed integers, in the range -2147483648 - 2147483647.
Example
| <h3>BitMaskSet Example</h3> <p>Returns number bitwise masked with length bits of mask beginning at start.</p> <p>BitMaskSet(255, 255, 4, 4): <cfoutput>#BitMaskSet(255, 255, 4, 4)#</cfoutput></p> <p>BitMaskSet(255, 0, 4, 4): <cfoutput>#BitMaskSet(255, 0, 4, 4)#</cfoutput></p> <p>BitMaskSet(0, 15, 4, 4): <cfoutput>#BitMaskSet(0, 15, 4, 4)#</cfoutput></p> |
Example
<cfscript> number = 0 ; mask = 15 ; start = 4; length = 4; writeOutput(bitmaskset(number, mask, start, length)) ; </cfscript>
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