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by: Michael B. Trausch |
last post by:
I have a question regarding bitwise operators, I've been trying to
figure this out for about two days now, and I just can't seem to get it.
What I'm trying to do is use a variable to hold a bitmask of 'flags'
for users on a website. The function below is supposed to be a search
function for one of those flags in a particular thing.
The idea is that when something calls userId(), it should get to see
what type of user flags that are...
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by: Joe Gonzalez |
last post by:
Is it possible to perform bitwise operations in selects in DB2 8.1? In
postgres I can say something like SELECT ... FROM <sometable> WHERE
RecFlags && 0x08 <> 0 to get a bitwise and operation. I can't find
anything similar in the db2 SELECT docs. Is there a built-in function
that can perform the bitwise operation? Thanks in advance for any info.
Joe Gonzalez
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by: Christopher Benson-Manica |
last post by:
I'm trying to compute the absolute value of an integer using only bitwise
operators...
int x;
sscanf( "%d", &x );
printf( "%d\n", (x^((~((x>>31)&1))+1)) + ((x>>31)&1) );
That works, but it assumes 32 bit integers. Is there a portable/standard way
to do this? Or are ANSI integers always 32 bits? If not, is using
sizeof(int) * 8 - 1 as the shift value an acceptable alternative?
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by: jas_lx |
last post by:
The basic understanding of what bitwise operators (& ^ | >> << ) comes
fairly simple, as long as one has a fundamental understanding of bits,
bytes and binary.
Having done some Win32 programming in straight C, the Win32 API sends
windows messages to applications with various settings stored in bit
fields, in which case changing the settings of the message is a matter
of using the bitwise operators. This was a good practical example of...
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by: Jerry |
last post by:
I want an algorithm that do arithmetic operations(divide,mutiply,add
etc.)just using bitwise operators:<<,>>,&,|,^;
For example,how "a/10" can be implemented.
I just want a hint.
Thanks.
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by: Jay Ruyle |
last post by:
I'm trying to figure out a way to list several items in a listbox and let
the user select any number of items in the listbox. I have tried to code in
the items as bitwise items but all it stores in the database is the top item
in the listbox.
How can I get the listbox to add all the bit values to be stored and also
come out properly when viewed later?
Example:
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by: Carramba |
last post by:
Hi!
I now that I can't do straight forward any bitwise operation on float
(double etc..). But I wondering what is the easiest/best way to do this?
I was thinking if I have float x=1.1111 so I can multiple it by 1000 to
get 11111 and the preform bitwise like <<2 to get 88888 and then divide
by 1000 to go back to float 8.8888. but these seem like "nasty" way to
do it. So maybe some of you have great tips?
Thank you in advance!
L R
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by: Carl Banks |
last post by:
Anyone with me here? (I know the deadline for P3 PEPs has passed; this
is just talk.)
Not many people are bit-fiddling these days. One of the main uses of bit
fields is flags, but that's not often done in Python because of keyword
arguments and dicts, which are lot more versatile. Another major use,
talking to hardware, is not something oft done in Python either.
It seems like this occasional usage wouldn't justify having built-in...
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by: Rob Wilkerson |
last post by:
I'm attempting to do some work around existing code that uses bitwise
operations to manage flags passed into a function and I'm quite
frankly unequipped to do so. I've never done much with bitwise
operations and all the reading I've done today doesn't appear to be
helping me much. I'm hoping someone here can provide a remedial
lesson. Given the following constants:
define('FLAG_1, 1);
define('FLAG_2', 2);
define('FLAG_3', 4);
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by: Santhosh |
last post by:
Hi to all,
How the individual digits of a number can be obtained using the
bitwise operators alone.Is it possible to do it ?
If we have n = 34
Result has to be 3,4.
Thanks a billion for your reply in advance.
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by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
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by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
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by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
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by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
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by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
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by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
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by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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