Plz explain

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C#

int polynom &= 0xFFFF;

Plz explain this line I am not geting.
thanks in adv.

Posted 5-Aug-10 23:36pm

PK DotNet

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3 solutions

Solution 2

Remove the &

This will declare polynnom as an int and set its value to 0xFFFF (65535 decimal)

Posted 6-Aug-10 0:28am

Dalek Dave

Solution 3

If the polynom is a 16 bit number then you bitwise and it with 16 1's hence nothing will happen
if polynom > 16 bit then it will remove the bits >2 ^16

Posted 6-Aug-10 7:45am

gaurav_verma_mca

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OriginalGriff · Accepted Answer · 2010-08-05T23:44:00

Its a line of rubbish.

int polynom

Declares an integer called "polynom" and sets it's value to zero.

polynom &= 0xFFFF

Performs a logical AND between the current value of "polynom" and hexadecimal FFFF (sixteen bits, all '1's), and replaces the current value of "polynom" with the result.
I.e.

int polynom &= 0xFFFF;

declares in integer called "polynom" and sets it's value to zero - since 0 logically ANDed with anything gives zero by definition.