Modern C++ Memory Management: std::unique_ptr, std::shared_ptr & RAII

Por Elena Rostova • Advanced • 13 min read • Actualizado 2026-09-11

Lo Que Dominarás en Este Tutorial

Understand unique ownership with std::unique_ptr and zero-cost abstraction.

1. The Power of std::unique_ptr and Move Semantics

std::unique_ptr automatically deallocates memory when it goes out of scope.

CPP

#include <iostream>
#include <memory>

void runWorker() {
    auto conn = std::make_unique<int>(42);
    // Destructor called automatically when out of scope
}

Nota: Always prefer std::make_unique over new.

Evaluación Rápida: Pon a Prueba tus Conocimientos

1. What is the runtime performance overhead of std::unique_ptr compared to a raw pointer?

Preguntas Frecuentes

When should I use std::shared_ptr instead of std::unique_ptr?

Only when an asset truly requires multiple owners across different lifetimes or asynchronous threads.