Re: [Boost-users] shared_ptr/shared_array Question

From: Colin Rafferty (colin.rafferty_at_[hidden])
Date: 2004-02-25 16:19:06

voodoo4_at_[hidden] wrote:

> Let's say i have these objects(the code is just an example):
> 
> class Slave
> {
> Slave();
> ~Slave();
> };
> 
> class Master
> {
> Master();
> Master(int size);
> ~Master();
> 
> Slave *sl;
> };
> 
> I want "sl" to be an array of Slaves on the free store but the sized will be
> determined in the constructor.
> 
> With normal pointers i would write:
> 
> Master::Master(int val)
> {
> sl=new Slave[val];
> }
>
> Master::~Master()
> {
> delete sl;
> }

class Master
{
    // ...
    shared_array<Slave> sl;
};

Master::Master(int val)
    : sl(new Slave[val])
{
}

Master::~Master()
{
    // intentionally left blank!
}

Of course, you may want to use scoped_array<Slave> instead of
shared_array<Slave>, but that depends on what you want to do.

-- 
Colin