Re: [Boost-users] [corrected]How to delay the initialisation of a member in a C++ base class until the ctor of derived class is executed?

Subject: Re: [Boost-users] [corrected]How to delay the initialisation of a member in a C++ base class until the ctor of derived class is executed?
From: Ovanes Markarian (om_boost_at_[hidden])
Date: 2009-03-25 05:16:36

should work, but don't forget to derive 'derived' from base:

class derived : base
{...}

On Wed, Mar 25, 2009 at 10:13 AM, Alex MDC <alex.mdc_at_[hidden]> wrote:

> Is there any C++ design pattern could achieve it? Thanks
>
>
> Since you're passing the size into the derived constructor, why don't you
> just pass it through to the base constructor?
>
> class base
> {
> public:
>     base(size_t array_size):size(array_size)
>     {
>         p_array.reset(new unsigned char[size]);
>     }
> private:
>     size_t size;
>     boost::shared_array<unsigned char> p_array;
> };
>
> class derived
> {
> public:
>     derived(size_t array_size):base(array_size)
>     {
>     }
> };
>
>
> Will that work for you?
>
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