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    std::enable_shared_from_this<T>::enable_shared_from_this

    From cppreference.com
     
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    std::enable_shared_from_this
     
    constexpr enable_shared_from_this() noexcept;
    		(1) (since C++11) 
    enable_shared_from_this( const enable_shared_from_this& other ) noexcept;
    		(2) (since C++11)

    Constructs a new enable_shared_from_this object. weak_this is value-initialized.

    Parameters

    other - an enable_shared_from_this to copy

    Notes

    There is no move constructor: moving from an object derived from enable_shared_from_this does not transfer its shared identity.

    Example

    Run this code
    #include <memory>

struct Foo : public std::enable_shared_from_this<Foo>
{
    Foo() {} // implicitly calls enable_shared_from_this constructor
    std::shared_ptr<Foo> getFoo() { return shared_from_this(); }
};

int main()
{
    std::shared_ptr<Foo> pf1(new Foo);
    auto pf2 = pf1->getFoo(); // shares ownership of object with pf1
}

    See also

    (C++11)
    		 smart pointer with shared object ownership semantics
    (class template) [edit]