How do I use polymorphic_allocator with containers for game development?

Learn how to use polymorphic_allocator with C++ containers for efficient memory management in game development. This guide provides examples and insights on optimizing your game's performance and resource handling.

polymorphic_allocator, C++ containers, game development, memory management, performance optimization, resource handling


#include <iostream>
#include <memory>
#include <vector>

template <typename T>
using my_allocator = std::allocator_traits<std::allocator<T>>::template rebind_alloc<T>>;

int main() {
    // Using polymorphic_allocator with a vector
    std::pmr::polymorphic_allocator<int> allocator;

    std::vector<int, my_allocator<int>> my_vector(allocator);

    // Adding elements to the vector
    for (int i = 0; i < 10; ++i) {
        my_vector.push_back(i);
    }

    // Displaying elements
    for (const auto& value : my_vector) {
        std::cout << value << ' ';
    }

    return 0;
}
    

polymorphic_allocator C++ containers game development memory management performance optimization resource handling