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POImplementing Smart Pointer - Dynamic Allocation with templates
 

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    <p>I'm in the process of writing a smart pointer countedptr and I've hit a speed bump. The basic function of countedptr is to work like any other smart pointer and also have a count of how many pointers are pointing to a single object. So far, the code is:</p> <p>[SOLVED]</p> <pre><code>#include "std_lib_facilities.h" template &lt;class T&gt; class counted_ptr{ private: T* pointer; int* count; public: counted_ptr(T* p = 0, int* c = new int(1)) : pointer(p), count(c) {} // default constructor explicit counted_ptr(const counted_ptr&amp; p) : pointer(p.pointer), count(p.count) { ++*count; } // copy constructor ~counted_ptr() { --*count; delete pointer; } counted_ptr&amp; operator=(const counted_ptr&amp; p) { pointer = p.pointer; count = p.count; ++*count; return *this; } T* operator-&gt;() const{ return pointer; } T&amp; operator*() const { return *pointer; } int Get_count() const { return *count; } }; int main() { counted_ptr&lt;double&gt; one; counted_ptr&lt;double&gt;two(one); int a = one.Get_count(); cout &lt;&lt; a &lt;&lt; endl; } </code></pre> <p>When I try to do something like</p> <pre><code>one-&gt;pointer = new double(5); </code></pre> <p>then I get a compiler error saying "request for member 'pointer' in '*(&amp;one)->counted_ptr::operator->with T = double' which is of non-class type double".</p> <p>I considered making a function to do this, and while I could make a function to allocate an array of T's, I can't think of a way of making one for allocating actual objects. Any help is appreciated, thanks.</p>
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    1. COI think int *count should be static. Isn't it?
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    2. COI will try that and see if one = new double(5) works then.
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    3. COstatic creates problem with member initialization in the constructors.
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