On Fri, Jul 5, 2013 at 4:09 PM, niXman <i.nixman@gmail.com> wrote:
Even in Boost, as of 1.53.0, shared_ptr<T[]> is a better alternative
2013/7/6 Glen Fernandes than
shared_array<T>.
Why?
Because it is consistent with unique_ptr now. You have unique_ptr<T> which has operator-> and unique_ptr<T[]> which has operator[]. Now (as of Boost 1.53.0) you have shared_ptr<T> which has operator-> and shared_ptr<T[]> 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<T[]> p = make_shared<T[]>(size), instead of two allocations with shared_array<T> p(new T[size]). Glen