How does c std vector work

0 votes
How do the addition and removal of pieces "rescale" the data?

How is the vector's size determined (and, I presume, tracked)?

Any further resources for learning about vectors would be greatly appreciated.
Jul 11, 2022 in C++ by Nicholas
 • 7,760 points • 588 views

No answer to this question. Be the first to respond.

Your answer

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.

Related Questions In C++

0 votes
1 answer

How does #include <bits/stdc++.h> work in C++? [duplicate]

#include <bits/stdc++.h> is a precompiled header implementation ...READ MORE

answered Jun 21, 2022 in C++ by Damon
 • 4,960 points • 8,537 views
0 votes
1 answer

How to use std::sort to sort an array in C++

We receive std::begin and std::end in C++0x/11, which are overloaded for arrays: #include <algorithm> int main(){ int v[2000]; ...READ MORE

answered Jun 1, 2022 in C++ by Damon
 • 4,960 points • 1,137 views
0 votes
1 answer

How do I reverse a C++ vector?

The algorithm header has a method std::reverse for this purpose. #include <vector> #include <algorithm> int main() { std::vector<int> ...READ MORE

answered Jun 27, 2022 in C++ by Damon
 • 4,960 points • 743 views
0 votes
0 answers

How to find if a given key exists in a C++ std::map

I'm trying to check if a given ...READ MORE

Jul 14, 2022 in C++ by Nicholas
 • 7,760 points • 768 views
0 votes
0 answers

Efficient way to return a std::vector in c++

When delivering a std::vector in a function, how much data is duplicated, and how much of an optimization will it be to place the std::vector in free-store (on the heap) and provide a pointer instead, i.e. is: std::vector *f() { std::vector *result = new ...READ MORE

Aug 11, 2022 in C++ by Nicholas
 • 7,760 points • 570 views
0 votes
0 answers

How does "this" cascading work?

The following class interface I have is: ...READ MORE

Aug 16, 2022 in C++ by Nicholas
 • 7,760 points • 431 views
0 votes
1 answer

How to find out if an item is present in an std::vector?

The most straightforward solution is to count the total number of elements in the vector that have the specified value.  If the count is greater than zero, we've found our element.  This is simple to accomplish with the std::count function. #include <iostream> #include <vector> #include <algorithm> int main() { ...READ MORE

answered May 27, 2022 in Others by Damon
 • 4,960 points • 14,115 views
0 votes
0 answers

How to implement 2D vector array?

I'm using the vector class in the ...READ MORE

Jun 1, 2022 in C++ by Nicholas
 • 7,760 points • 531 views
0 votes
0 answers

How to implement 2D vector array?

I'm using the vector class in the ...READ MORE

Jun 1, 2022 in C++ by Nicholas
 • 7,760 points • 395 views
0 votes
1 answer

How do I erase an element from std::vector<> by index?

You might perform the following to remove a single element: std::vector<int> vec; vec.push_back(6); vec.push_back(-17); vec.push_back(12); // Deletes the second element (vec[1]) vec.erase(std::next(vec.begin())); Alternatively, to remove many elements at once: // ...READ MORE

answered Jun 10, 2022 in C++ by Damon
 • 4,960 points • 1,481 views
webinar REGISTER FOR FREE WEBINAR X
REGISTER NOW
webinar_success Thank you for registering Join Edureka Meetup community for 100+ Free Webinars each month JOIN MEETUP GROUP
"PMP®","PMI®", "PMI-ACP®" and "PMBOK®" are registered marks of the Project Management Institute, Inc. MongoDB®, Mongo and the leaf logo are the registered trademarks of MongoDB, Inc.