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by: Mike Hodkin |
last post by:
As a beginning student of C++, books reference "bitwise operators" and give
brief examples, but I have not read a good explanation of what they are used
for. One reference mentioned that they are used in hardware programming.
Are they used very often in routine C/C++ programming, and what for?
thanks,
MJH
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by: August Derleth |
last post by:
Cause I made such a hash of my first attempt, and in an effort to provide
PORTABLE code to solve the problem, I submit this solution to convert to
and from BCD values stored in longs. This should work just as well for
ints and (in theory) chars and, indeed, any integral type. If it doesn't,
suggest ways to improve it, even at a significant speed/code size penalty.
#include <math.h>
long bcd(long decimal)
{
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by: noridotjabi |
last post by:
I'm learning to program in C and any tutorial or book that I read likes
to briefly touch on birdies operators and then move on without giving
any sort of example application of them. Call me what you will but I
cannot seem to see the purpose for bitwise operators. Especially the
operators bitwise OR ( | ) and bitwise AND ( & ), I'm just not getting
it. I have searched around and really haven't found anything that gave
explanation to why...
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by: CptDondo |
last post by:
I'm working with some legacy C code. Apparently the author didn't know
or care about the difference between int, int16_t, unsigned int, and so
on. He does a lot of bitwise |, &, etc on signed int, without regard to
the size of int and sign flipping. The result is that the code produces
valid results most of the time, and garbage the rest of the time.
I've already lost a few days to auditing the code by hand. Is there
some way to...
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by: Mark Rae |
last post by:
Hi,
This isn't *specifically* an ASP.NET question, so I've also posted it in the
ADO.NET group - however, it's not too far off-topic...
Imagine a SQL Server 2005 database with a table with an int column used for
bitwise data - you know the sort of thing... 0, 1, 2, 4, 8, 16 etc
intBitwise strName
----------------------
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by: elsa |
last post by:
hi..
im trying to build a program using arrays to do the following things:
1- convert a digital number to binary using mathematical operators by using the function void binaryConversionUsingArithematicOperators(unsigned long)
2- convert a digital number to binary using bitwise operators by using the function void binaryConversionUsingBitwiseOperators(unsigned long)
3- check if the word is a palindrome using iteration by using this function
...
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by: sudha30 |
last post by:
hi please find code to add two numbers only by using bitwise operators
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by: Jorge Peixoto |
last post by:
In the answer to question 12.42 of the C FAQ, we have this code:
putc((unsigned)((s.i32 >24) & 0xff), fp);
putc((unsigned)((s.i32 >16) & 0xff), fp);
putc((unsigned)((s.i32 >8) & 0xff), fp);
putc((unsigned)(s.i32 & 0xff), fp);
putc((s.i16 >8) & 0xff, fp);
putc(s.i16 & 0xff, fp);
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by: Jeff.Goldfinkle |
last post by:
Hi All
Is there a simple way to twiddle the bits of a float? In particular, I
would like to round my float to the n most significant bits.
For example - 0.123 in binary is 0.000111111
Rounding to 4 bits I get 0.0001.
I can pack and unpack a float into a long
e.g.
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by: jinu1996 |
last post by:
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by: Hystou |
last post by:
Overview:
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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: 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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by: bsmnconsultancy |
last post by:
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