MACROMEDIA COLFUSION MX 7-CFML, Reference

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BitMaskSet 501
BitMaskSet
Description
Performs a bitwise mask set operation.
Returns
A number, bitwise masked with length bits of mask beginning at start .
Category
Mathematical functions
Function syntax
BitMaskSet ( number , mask , start , length )
See also
BitMaskClear , BitMaskRead
Parameters
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>BitMaskSet(255, 255, 4, 4):
<cfoutput>#
BitMaskSet(255, 255, 4, 4) #</cfoutput>
<p>BitMaskSet(255, 0, 4, 4):
<cfoutput>#
BitMaskSet(255, 0, 4, 4) #</cfoutput>
<p>BitMaskSet(0, 15, 4, 4):
<cfoutput>#
BitMaskSet(0, 15, 4, 4) #</cfoutput>
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