On Tue, Oct 25, 2011 at 12:36 AM, Olaf van der Spek <ml@vdspek.org> wrote:
Hi,
Currently, one has to manually allocate the array and pass the ptr to the constructor of scoped_array / shared_array.
boost::scoped_array<unsigned char> A(new unsigned char[100]); boost::shared_array<unsigned char> B(new unsigned char[100]);
This requires one to repeat the type and shared_array requires two allocations (one extra for the control block). std::vector has a constructor from size_t and one can write:
std::vector<unsigned char> V(100);
This avoids the type duplication and it'd allow shared_array to do only a single allocation. A few choices have to be made: 1. Should "new T[sz]" or "new T[sz]()" be used? 2. What should happen when size = 0? Should it call new T[0] or should it just use NULL?
Is (almost) nobody using scoped/shared_array? -- Olaf