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- Constructs a non-array type T. The arguments args are passed to the constructor of T. This overload participates in overload resolution only if T is not an array type. The function is.
- Constructs a non-array type T. The arguments args are passed to the constructor of T. This overload participates in overload resolution only if T is not an array type. The function is.
std::make_unique is a utility function in C++ that was introduced in C++14. It is used to create a unique_ptr object, which is a smart pointer that manages the lifetime of dynamically.
The difference is that std::make_unique returns an object of type std::unique_ptr and new returns a pointer to the created object. For memory allocation failures, they will both throw.
Understanding the Context
Constructs an object of type T and wraps it in a std::unique_ptr. Constructs a non-array type T. The arguments args are passed to the constructor of T. This overload participates in overload resolution.
Constructs an object of type T and wraps it in a std::unique_ptr. 1) Constructs a non-array type T. The arguments args are passed to the constructor of T. The function does not participate in the overload.
A hypothetical allocate_unique would be required to invent the deleter type D for the unique_ptr<T,D> it returns which would contain an allocator object and invoke both destroy and.
In this comprehensive guide, well unpack exactly how make_unique works, why its useful, and how you as a C++ developer can leverage it to boost your productivity and write safer code.
Key Insights
Notes Unlike std::make_shared (which has std::allocate_shared ), std::make_unique does not have an allocator-aware counterpart. allocate_unique proposed in P0211 would be required to invent the.
Theres the proposal for make_unique, written by our pal Stephan T. Lavavej. It cites a few motivating issues for the make_unique function: Parallel construction with make_shared..
A hypothetical allocate_unique would be required to invent the deleter type D for the unique_ptr<T,D> it returns which would contain an allocator object and invoke both destroy and deallocate in its operator().
