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by: Pratyush |
last post by:
Hi,
Suppose there is a vector of objects of class A, i.e., std::vector<A>
vec_A(N); The class A satisifies all the STL vector requirements.
Now I wish to add some attributes for each of the objects in the
vector vec_A. Suppose there are K attributes to be added. For each of
the attributes I define K vectors of appropriate types. Say, the
attributes have types type1, type2, ..., typeK. So I define
std::vector<type1> attr1(vec_A.size());
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by: Alfonso Morra |
last post by:
I have written the following code, to test the concept of storing
objects in a vector. I encounter two run time errors:
1). myClass gets destructed when pushed onto the vector
2). Prog throws a "SEGV" when run (presumably - attempt to delete
deleted memory.
Please take a look and see if you can notice any mistakes I'm making.
Basically, I want to store classes of my objects in a vector. I also
have three further questions:
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by: JoeC |
last post by:
I am completly lost.
I would like to create a function that takes two vectors.
These two vectors have objects with x and y coords, what I want to do
find all the objects in the same x and y coords and put all the objects
in the same coordinate together.
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by: madhu |
last post by:
http://msdn2.microsoft.com/en-us/library/fs5a18ce(VS.80).aspx
vector <intv1;
v1.push_back( 10 ); //adds 10 to the tail
v1.push_back( 20 ); //adds 20 to the tail
cout << "The size of v1 is " << v1.size( ) << endl;
v1.clear( ); //clears the vector
I have a few questions:
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by: r.z. |
last post by:
I logged construtor and destructor calls for one of my classes and I
discovered that the constructor was called only once while the destructor
was called 3 times for a single object.
I have a vector of objects of class A:
vector<Avector_of_As;
and I put objects to it like this:
vector_of_As.push_back( A() );
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by: Jess |
last post by:
Hello,
I have a program that stores dynamically created objects into a
vector.
#include<iostream>
#include<vector>
using namespace std;
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by: tharringtonan |
last post by:
I am compiling the following code, main.cpp, as follows:
gcc main.cpp
I get the following compile error:
main.cpp: In function `int main()':
main.cpp:28: no matching function for call to `CPolygon::area()'
The code is listed below:
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by: jojo41300000 |
last post by:
Hi,
Is anyone know that how to get the x and y points inside the polygon using C++ program?
I have the given polygon data to draw the polygon, but i don't know how to get all the points inside the polygon.
Eg. Let's say we have 5 points to draw a polygon.
Polygon
---------------------
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by: Ramon F Herrera |
last post by:
Newbie alert: I come from C programming, so I still have that frame of
mind, but I am trying to "Think in C++". In C this problem would be
solved using unions.
Hello:
Please consider the snippet below. I have some objects which are
derived (subclassed?, subtyped?) from simpler ones, in increasing
size. There is a linear hierarchy. I need to keep them all in some
sort of linked list (perhaps std::vector). I could have several
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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: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
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