How do I use polymorphic_allocator with containers for low-latency systems?

Learn how to use polymorphic_allocator with C++ containers for low-latency systems, enabling efficient memory management and fast allocation strategies.
polymorphic_allocator, C++ containers, low-latency systems, memory management, efficient allocation
#include #include #include // For std::polymorphic_allocator #include // For timing // Custom allocator inheriting from std::polymorphic_allocator template class CustomAllocator : public std::pmr::polymorphic_allocator { public: using std::pmr::polymorphic_allocator::polymorphic_allocator; // Override allocate method for custom allocation strategy T* allocate(std::size_t n) { auto p = std::pmr::polymorphic_allocator::allocate(n); std::cout << "Allocated " << n << " object(s) of size " << sizeof(T) << std::endl; return p; } }; int main() { // Use custom allocator with vector std::pmr::vector> myVector; // Adding elements to the vector for (int i = 0; i < 10; ++i) { myVector.push_back(i); } // Output elements for (const auto& val : myVector) { std::cout << val << " "; } std::cout << std::endl; return 0; }

polymorphic_allocator C++ containers low-latency systems memory management efficient allocation

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