Re: [Boost-users] Problem with enable_shared_from_this and shared_ptr

Subject: Re: [Boost-users] Problem with enable_shared_from_this and shared_ptr
From: Michael Caisse (boost_at_[hidden])
Date: 2010-07-20 22:44:05

Ryan McConnehey wrote:
> Michael Caisse wrote:
>> Ryan -
>>
>> See the documentation here:
>> <http://www.boost.org/doc/libs/1_43_0/libs/smart_ptr/enable_shared_from_this.html> 
>>
>>
>> There must be at least one shared_ptr instance that owns the object 
>> that you are calling shared_from_this() on. Also see the examples at 
>> the above link.
>>
>> hth -
>> michael
>>
> I've looked at that documentation already.  That's part of why of I 
> know I should be able to do what I want.
>
> Ryan

Not very carefully... so let me quote from the above link directly:

---------------

template<class T> shared_ptr<T const> enable_shared_from_this<T>::shared_from_this() const;

    *Requires:* *enable_shared_from_this<T>* must be an accessible base class of *T*. 
    **this* must be a subobject of an instance *t* of type *T* . There must exist at least 
    one *shared_ptr* instance *p* that /owns/ *t*

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Michael Caisse
Object Modeling Designs
www.objectmodelingdesigns.com