Introduction to Unique Pointers
To create a std::unique_ptr you can use the std::make_unique. It is a function that provides a safe and efficient way to create unique pointers.
It's a great alternative to using the new/delete and new[]/delete[] operators, which can make code more susceptible to memory-related issues.
make_unique.h
12// Using `std::make_unique` to create a unique pointer to a vector of integers std::unique_ptr<std::vector<int>> p_unique_vector = std::make_unique<std::vector<int>>();
The std::make_unqiue allocates the dynamic resource and returns a unique pointer that owns it. When the unique pointer goes out of scope, the resource is automatically deallocated.
new_unique_ptr.h
12// Insecure way to create a unique pointer for a vector of integers. std::unique_ptr<std::vector<int>> p_unique_vector(new std::vector<int>());
The p_unique_vector vector in the above code will still be automatically destroyed when the unique pointer goes out of scope. However, for maximum exception safety and better code practices, always prefer using std::make_unique.
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To create a std::unique_ptr you can use the std::make_unique. It is a function that provides a safe and efficient way to create unique pointers.
It's a great alternative to using the new/delete and new[]/delete[] operators, which can make code more susceptible to memory-related issues.
make_unique.h
12// Using `std::make_unique` to create a unique pointer to a vector of integers std::unique_ptr<std::vector<int>> p_unique_vector = std::make_unique<std::vector<int>>();
The std::make_unqiue allocates the dynamic resource and returns a unique pointer that owns it. When the unique pointer goes out of scope, the resource is automatically deallocated.
new_unique_ptr.h
12// Insecure way to create a unique pointer for a vector of integers. std::unique_ptr<std::vector<int>> p_unique_vector(new std::vector<int>());
The p_unique_vector vector in the above code will still be automatically destroyed when the unique pointer goes out of scope. However, for maximum exception safety and better code practices, always prefer using std::make_unique.
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