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by: Peter Olcott |
last post by:
I want to be able to efficiently build data structures at run-time.
These data structures need to be accessed with minimal time.
The only a few ways that come immediately to mind would be
some sort of dynamically allocated array of :
(1) void pointers, that must be cast into the desired types.
(2) union of the desired pointers.
(3) An Inheritance hierarchy
(4) Possibly a union of the desired data types.
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by: masood.iqbal |
last post by:
I am having lots of trouble getting a simple program that initializs a
dynamically allocated 2D array to work. My 2D array is not getting
initialized properly, and additionally I am getting a "Null pointer
assignment" error. Kindly help.
Also, eventually I intend to move this logic to a separate function.
For that, I believe, that I will need to pass a
pointer-to-pointer-to-pointer type as an arguent. Please confirm.
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by: Fabian Wauthier |
last post by:
Hi list,
I am trying to dynamically grow a 2 dimensional array (Atom ***Screen) of
pointers to a struct Atom (i.e. the head of a linked list). I am not
sure if this is the right way to do it:
/* Allocate 1st dimension */
if((Screen = (Atom ***) malloc(sizeof(Atom **) * Width)) == NULL)
perrexit("malloc");
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by: nmtoan |
last post by:
Hi,
I could not find any answer to this simple question of mine.
Suppose I have to write a program, the main parts of it are as follows:
#include <blahblah.h>
struct
{
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by: yogpjosh |
last post by:
Hello All,
I was asked a question in an interview..
Its related to dynamically allocated and deallocated memory.
eg.
//start
char * p = new char;
...
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by: bwaichu |
last post by:
Is my understanding of the allocation of these correct?
I used fixed sized allocations for the example below, so I realize
there is some optimization that can be done to those.
I would like to use these in a linked list for something else I am
working on, but I want to make sure my understanding of the concept is
correct.
For example, from the code below string would equal 'h' after
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by: Jinkuzo |
last post by:
Have been working on this project for a week, unfortunately missed the lesson on it and have been struggling to figure it out.
These are the instructions and the point at which I'm up to.
So essentially we don't know the size of the array and the user doesn't specify size, it's all done on the fly.
Point I'm up to:
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by: Serpent |
last post by:
The C-FAQ describes some techniques here: http://c-faq.com/aryptr/dynmuldimary.html
I was using something slightly different from the C-FAQ and I was
wondering if it was legal.
Say I want a two-dimensional array, like this:
int x;
but I want it dynamically-allocated, and I want expressions that refer
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by: gucci09 |
last post by:
I was wondering how you would go about creating a dynamically allocated array of strings from a file. i have a dictionary that i want to load in my program in order to spell check. i cant decide if it is best to use an array of string pointers or an array of the actual words. also i am very new to C and really am not comfortable with malloc yet. any help would be greatly appreciated
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by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
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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...
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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: 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: 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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