Re: [Boost-users] Macro to contruct/allocate a shared_ptr?

From: David Klein (d.klein_at_[hidden])
Date: 2006-07-14 07:21:57

boost-users-bounces_at_[hidden] wrote:
> Hi Dave. That code went over the top of my head. Do you mind
> giving me an example of the usage?
> 
> On 7/14/06, David Klein <d.klein_at_[hidden]> wrote:
>> [snip]
>> 
>>> I just have a problem with having the user manage the memory.
>>> ie I'd rather do the following:
>>> 
>>> shared_ptr<Test> p(1, 'a', "hello");
>>> or:
>>> shared_ptr<Test> p = newptr<Test>(1, 'a', "hello");
>>> 
>>> instead of:
>>> 
>>> shared_ptr<Test> p(new p(1, 'a', "hello"));
>>> 
>>> but i guess that's a limitation of the language. to get
>> 
>> hi,
>> 
>> have a look at shared_new.zip in the vault.
>> 
>> http://tinyurl.com/khd8v
>> 
>> --
>> HTH dave

well, i just tried to compile the shared_new_test.cc,
but it failed using vc71 and vc8 (boost 1.33.1).
anyway, its quite similiar to the code Roman Perepelitsa posted.

a short example using his newptr:

struct X
{
        X( int _x, double _y, const std::string & _z )
        {
                ...
        }
}

shared_ptr<X> x = newptr<X>(42, 42.0, "hello world");