Re: [boost] [shared_array] Why not in C++11 ?

On Fri, Jul 5, 2013 at 4:09 PM, niXman wrote:

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Even in Boost, as of 1.53.0, shared_ptr is a better alternative

2013/7/6 Glen Fernandes than

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shared_array<T>.

Why?

Because it is consistent with unique_ptr now. You have unique_ptr<T> which has operator-> and unique_ptr which has operator[]. Now (as of Boost 1.53.0) you have shared_ptr<T> which has operator-> and shared_ptr which has operator[]. Furthermore, I also contributed boost::make_shared and boost::allocate_shared for T[] and T[N]. See: http://www.boost.org/doc/libs/1_54_0/libs/smart_ptr/make_shared_array.html These do not exist for Boost shared_array, thus prefer Boost shared_ptr with T[] or T[N] for arrays if you want an efficient way to create a shared array: i.e. single allocation with shared_ptr p = make_shared(size), instead of two allocations with shared_array<T> p(new T[size]). Glen