Re: [boost] shared_ptr<>: why no operator[] ?

On Tue, Jul 26, 2011 at 11:39 PM, dgwsoft <gareth@dgwsoft.co.uk> wrote:

boost::shared_ptr<int> p(new int(42));

To access elements of the array I can do:

p.get()[10] = 7;

But wouldn't it be nicer to do:

p[10] = 7; // ?

So: why is no T& operator[](int) defined for shared_ptr ? I'm just interested in the design reasons for this.

This isn't guaranteed to properly destroy the array. It will call delete, rather than delete[]. This is why there is also boost::shared_array which is what you should be using and has an operator[]. I hope this helps. Regards, Neil Groves