User Guide

284 CFML Language Reference

BitMaskSet

Returns number bitwise masked with length bits of mask beginning from start.

See also BitMaskClear and BitMaskRead.

Syntax BitMaskSet(

number

mask

start

length

)

number

Long integer to be masked.

mask

Long integer specifying the mask.

start

Integer specifying the starting bit in number for masking.

length

Integer specifying the length of mask.

Usage Parameters start and length must be in the range from 0 to 31.

Bit functions operate on 32-bit integers.

Examples

<HTML>

<HEAD>

<TITLE>BitMaskSet Example</TITLE>

</HEAD>

<BODY>

<H3>BitMaskSet Example</H3>

<P>Returns number bitwise masked with length

bits of mask beginning from 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>

</BODY>

</HTML>