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by: Juha Kettunen |
last post by:
Hi
I don't know if I am using right words (bit-number), but this is what I
mean:
You can set a 64 bit number:
unsigned long a;
Now you can use binary operators to manipulate variable a (for example
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by: William Payne |
last post by:
Hello, I have a variable of type unsigned long. It has a number of bits set
(with set I mean they equal one). I need to determine those bits and their
position and create new numbers from them. For example, consider this
four-bit number:
1100
from this number I want to extract two numbers:
1000 and 100
had the four-bit number been 0101 I would want to extract 100 and 1.
How should I do this? I wish I had some code to post but I don't...
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by: Rich S. |
last post by:
Hi,
Is the code below the best way to have the less than function for an 80 bit
bitset or is there something faster / better?
When I populate this map with millions (... and millions) of sets it gets
slower and slower, I'm looking to make it faster.
Thanks
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by: sridhar |
last post by:
#include <stdio.h>
int main(){
unsigned int ui = 0;
if(0x0ul <= ui){
printf("less eq\n");
}
}
On my system unsigned long is 64 bits and unsigned int is 32.The
compiler gives a warning
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by: Mockey Chen |
last post by:
On 32-bit platform, give you a unsigned int?
what is the best way to get how many bits equal to 1.
please do not use loop if possible?
Thanks in advance.
--
Regards.
Mockey Chen
Email: mockey.chen@gmail.com
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by: Sarath |
last post by:
>From the documentation of MSDN, it is saying that bitset is not a STL
container
Unlike the similar vector<boolClass, the bitset class does not have
iterators and is not an Standard Template Library container.
Actaully what's so special in STL containers?
What I know is that there will be certain operators overloaded,
supports template meta programming, having iterators, compatible with
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by: arnuld |
last post by:
i have solved the problem. any comments on it:
/* C++ Primer 4/e
* chapter 3
*
* exercise 3.24
* STATEMENT:
* consider the sequence 1,2,3,5,13,21. Initialize a "bitset<32>"
object that has a one bit in each position corresponding to a number in
this sequence. */
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by: krishna81m |
last post by:
I am a newbie and have been trying to understand conversion from double to int and then back to int using the following code was posted on the c++ google group. Could someone help me out with understanding why and how a double can be represented in bits and bytes and which of the following can allow us to view the binary representation, unsigned char representation and then convert back to int please...
#include<iostream>
#include<iomanip>...
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by: swcamry |
last post by:
class bitset::reference {
friend class bitset;
reference(); // no public
constructor
public:
~reference();
operator bool () const; // convert to bool
reference& operator= ( bool x ); // assign from bool
reference& operator= ( const reference& x ); // assign from bit
reference& flip(); // flip bit value
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by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
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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: 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: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
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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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