topic Re: Bitwise Operators in Scripts? in QlikView

Bitwise Operators in Scripts?

Thu, 16 Feb 2012 17:56:13 GMT

This may be very basic, but I can't seem to find bitwise operators in Scripts.

My input includes an integer that is a collection of set bits. I wish to do bitwise operations on this integer to pick out specific bits that are set.

How can I do this?

Re: Bitwise Operators in Scripts?

tresB — Thu, 16 Feb 2012 18:30:04 GMT

Hi,

This is what help says:

Bit Operators

All bit operators convert the operands to signed integers (32 bit) and return the result in the same way. All operations are performed bit by bit.

bitnot	Bit inverse.	Unary operator. The operation returns the logical inverse of the operand performed bit by bit.
bitand	Bit and.	The operation returns the logical AND of the operands performed bit by bit.
bitor	Bit or.	The operation returns the logical OR of the operands performed bit by bit.
bitxor	Bit exclusive or.	The operation returns the logical exclusive or of the operands performed bit by bit.
>>	Bit right shift.	Unary operator. The operation returns the operand shifted one step to the right.
<<	Bit left shift.	Unary operator. The operation returns the operand shifted one step to the left.

Does this help?

Regards, tresesco

Re: Bitwise Operators in Scripts?

upendrarajeshir — Tue, 09 Oct 2012 08:57:28 GMT

Hi Tresesco,

Can you give any example, this would really help me...

Thank & Regards,

Upendra

Re: Bitwise Operators in Scripts?

swuehl — Tue, 09 Oct 2012 10:03:47 GMT

Please check

http://en.wikipedia.org/wiki/Bitwise_operation

So one simple example in a textbox:

= 10 bitand 3

results in 2

Re: Bitwise Operators in Scripts?

upendrarajeshir — Tue, 09 Oct 2012 11:17:23 GMT

Hey swuehl,

Thanks for the reply, it helps me a lot.

Thanks & Regards