| |
by: Kevin Grigorenko |
last post by:
Hello,
I couldn't find an obvious answer to this in the FAQ. My basic question,
is: Is there any difference in allocating on the heap versus the stack? If
heap or stack implementation is not part of the standard, then just
disregard this question. Here's some questions I'm confused about, and if
you can add anything else, please do so!
Is the stack limited for each program?
|
by: Shailesh Humbad |
last post by:
If a class has no constructor/destructor, is not part of an
inheritance heirarchy, is not a template, and only contains members of
integral types, then is it okay to allocate it off the heap? Is this
bad style?
For example:
class myClass {
public:
int myInt;
|
by: Jonas Rundberg |
last post by:
Hi
I just started with c++ and I'm a little bit confused where stuff
go...
Assume we have a class:
class test {
private:
int arr;
};
|
by: arcticool |
last post by:
I had an interview today and I got destroyed :(
The question was why have a stack and a heap?
I could answer all the practical stuff like value types live on the
stack, enums are on the stack, as are structs, where classes are on
the heap... when value types go out of scope the memory is re-
allocated, object remain in memory waiting to be cleaned up by the
garbage collector, etc, but he responded 'so why not just put say a
class on the...
|
by: toton |
last post by:
Operator overloading has a sort syntax rather than member function call
for stack based memory allocation.
like complex<int> c1,c2,c3;
c3= c1+c2;
How the same can be applied to heap based memory allocation?
like complex<int> * c1,*c2,*c3;
i still want to do something like c3 = c1+c2 ; rether than *c3 =
*c1+*c2;
|
| |
by: sarathy |
last post by:
Hi all,
I need a few clarifications regarding memory allocaion in C++.
I apologize for the lengthy explanation.
1. In C++, Objects are allocated in heap.
What does heap refer to? Is it an area in RAM/Memory or does it refer
to a data structure being used for storing objects.
2. In C++, functions and its local variables go in stack.
If local variables that are primitives go in stack, it is OK. But what
|
by: Pep |
last post by:
I have a problem I need to solve which looks like memory exhaustion.
Is there a function that I can use in c++ to determine the size of the
heap before and after a allocation?
The C++ code is running on linux and freeBSD.
The actual library I am interfacing with uses malloc and i have no
control over it so I need to see the state of the heap after each use
of the libraries allocation functions.
|
by: Le Minh |
last post by:
I used this class to dynamic memory allocation:
using System;
using System.Runtime.InteropServices;
public unsafe class Memory
{
// Handle for the process heap. This handle is used in all calls to the
// HeapXXX APIs in the methods below.
static int ph = GetProcessHeap();
// Private instance constructor to prevent instantiation.
private Memory() {}
|
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?
|
by: Andy Watson |
last post by:
I have an application that scans and processes a bunch of text files.
The content I'm pulling out and holding in memory is at least 200MB.
I'd love to be able to tell the CPython virtual machine that I need a
heap of, say 300MB up front rather than have it grow as needed. I've
had a scan through the archives of comp.lang.python and the python
docs but cannot find a way to do this. Is this possible to configure
the PVM this way?
...
|
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...
|
| |
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,...
|
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...
|
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...
|
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...
|
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...
|
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();...
|
| |
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...
|
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
|
1
