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From: Vaclav Vesely (vaclav.vesely_at_[hidden])
Date: 2006-03-24 05:36:07


In Best Practices section of shared_ptr is an example:

        void f(shared_ptr<int>, int);
        int g();

        void ok()
            shared_ptr<int> p(new int(2));
            f(p, g());

        void bad()
            f(shared_ptr<int>(new int(2)), g());

Best Practices refers to (it deals with
auto_ptr, but for shared_ptr the conclusion is same). The article
proposes following solution:

        template<typename T, typename A1>
        shared_ptr<Type> new_shared_ptr(A1 a1)
            return shared_ptr<Type>(new Type(a1));

        void ok2()
            f(new_shared_ptr<int>(2), g());

However the conclusion of the article is, that ok1() is better than
ok2() because you have to write helper functions. I don't agree. IMHO
ok2 IS better and the helper functions should be in the library (so the
uses doesn't have to write them. What do you think?


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