fen fen - 1 year ago 78
C++ Question

Is there any use for unique_ptr with array?

has support for arrays, for instance:

std::unique_ptr<int[]> p(new int[10]);

but is it needed? probably it is more convenient to use

Do you find any use for that construct?

Answer Source

Some people do not have the luxury of using std::vector, even with allocators. Some people need a dynamically sized array, so std::array is out. And some people get their arrays from other code that is known to return an array; and that code isn't going to be rewritten to return a vector or something.

By allowing unique_ptr<T[]>, you service those needs.

In short, you use unique_ptr<T[]> when you need to. When the alternatives simply aren't going to work for you. It's a tool of last resort.

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