How do I reserve capacity and shrink-to-fit with std::list?

In C++, std::list is a doubly linked list, and unlike std::vector, it does not have the notion of capacity because it dynamically allocates memory for each element separately. Therefore, the methods reserve() and shrink_to_fit() do not apply to std::list. When you need to store elements in a list, simply add or remove elements as needed, and the list will handle the memory allocation for you.

Here's an example of using std::list:

#include #include int main() { std::list myList; // Adding elements to the list myList.push_back(10); myList.push_back(20); myList.push_back(30); // Displaying elements in the list for (const int &item : myList) { std::cout << item << std::endl; } // Remove an element from the list myList.remove(20); // Displaying elements after removal std::cout << "After removal:" << std::endl; for (const int &item : myList) { std::cout << item << std::endl; } return 0; }

std::list C++ memory management linked list dynamic allocation

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