User Guide

404 Chapter 3: ColdFusion Functions

BitMaskSet

Description

Performs a bitwise mask set operation.

Returns

A number, bitwise masked with length bits of mask beginning at start.

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