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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?
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by: MSG |
last post by:
Hello
void f1(int n) { vector<int> x(n); /* C++ */ }
void f2(int n) { int x; /* C99 only */ }
void f3(int n) { int* x = new int; /* C++ */ delete x; }
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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;
};
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by: Dan Elliott |
last post by:
Hello all,
I am writing a program which needs to run as quickly as possible, but holds
a lot of data in memory (around 1GB for a usual run). Is this too much
memory to even consider putting most/all of it on the stack? Does it
matter?
Any considerations I might take into account when deciding how to allocate
the many data structures? By the way, the system will consist of a handful
of very large data structures (primarily matrices...
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by: Dave Dons |
last post by:
GCC 3.3.4 setting Stack and Heap
Help appreciated setting stack (and heap) in GCC in Linux:
gcc (GCC) 3.2.3 (mingw special 20030504-1) has no problems with:
g++ -Wl,--heap,1048576,--stack,10485760 axx1.cpp utils.cpp -Wall -Os
-o axxngcc
g++ -Wl,--heap=1048576,--stack=10485760 axx1.cpp utils.cpp -Wall -Os
-o axxgcc
g++ -Wl,--heap=0x00100000,--stack=0x00A00000 axx1.cpp -Wall -Os -o
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by: Gomaw Beoyr |
last post by:
Hello
Is there any explanation why Microsoft chose to implement
arrays as objects allocated on the heap instead of structs
allocated on the stack?
For "mathematical stuff", one normally wishes to avoid
unnecessary garbage collection, but that is exactly what's
going to happen if a lot of arrays, matrixes etc are allocated
on the heap.
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by: shine |
last post by:
what is the difference between a heap and a stack?
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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...
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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
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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?
|
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...
|
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: 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();...
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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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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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