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by: Ares Lagae |
last post by:
Hello,
I am trying to create a container the stl way, and I have a couple of
questions. The code of the container in question can be found at
http://www.cs.kuleuven.ac.be/~ares/tmp/array_2_hpp.html
It is a 2d array that dynamically allocates its storage. It cannot be
resized. It offers element access methods for both sequential access and 2d
element access.
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by: dsptechie |
last post by:
I wanted to how exactly malloc() function works. I came to know that
malloc() allocates memory only in powers of 2. i.e if asked for say 17
bytes , in the process, it allocates 32 bytes and returns 17 bytes so
15 bytes are wasted...
Is this true...If anybody knows the algorithm details of malloc()
plase share the same.
Is this one of the reason why malloc() is not generally preferred in
embedded systems..?
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by: Dan Nilsen |
last post by:
Hi!
I'm writing a small piece of software that basically runs on an
embedded system with a Power-PC cpu. This runs on a stripped down
version of Linux - Busybox.
As I'm writing a piece of code that basically acts as a server and
that will be running for weeks or months and probably even longer,
memory management is a topic that is quite crucial.
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by: Ross A. Finlayson |
last post by:
I'm trying to write some C code, but I want to use C++'s std::vector.
Indeed, if the code is compiled as C++, I want the container to
actually be std::vector, in this case of a collection of value types or
std::vector<int>.
So where I would use an int* and reallocate it from time to time in C,
and randomly access it via , then I figure to copy the capacity and
reserve methods, because I just need a growable array.
I get to considering...
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by: Cuthbert |
last post by:
Hi folks,
This question is a little deep into memory management of
microprocessor.
How do we know the memory arrangement using in microprocessors?
Top-Bottom or Bottom-Top?
For example, the "Top-Bottom" is arranging memory resource from higher
address to lower address.
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by: Ken |
last post by:
In C programming, I want to know in what situations we should use
static memory allocation instead of dynamic memory allocation. My
understanding is that static memory allocation like using array is
faster than malloc, but dynamic memory allocation is more flexible.
Please comment... thanks.
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by: fdmfdmfdm |
last post by:
This is an interview question and I gave out my answer here, could you
please check for me?
Q. What are the memory allocation for static variable in a function,
an automatic variable and global variable?
My answer: static variable in function and global variable are
allocated in head, and automatic variable is allocated in stack.
Right?
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by: jimxoch |
last post by:
Hi list,
Most STL containers are storing their data on the heap. (although some
std::string implementations are notable exceptions) Of course, using
the heap as storage increases flexibility and allows the handling of
much bigger amounts of data. However, there are cases where this turns
out to be inefficient for at least two reasons: A) Allocations and
deallocations on heap are much slower. B) Memory access on stack is
more cache...
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by: vishnu |
last post by:
Hi there,
I am embedding python 2.5 on embedded system running on RTOS where I
had strict memory constraints.
As python is a huge malloc intensive application, I observed huge
memory fragmentation in my system which is leading to out of memory
after running few scripts.
So I decided to re-initialise the python with out restarting the whole python.
I tried to use Py_Finalise() after completion of each script , then
call Py_Initialise as...
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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: 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...
|
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: 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: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
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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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