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POTemplates --> How to decipher, decide if necessary and create?
 

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  1. POTemplates --> How to decipher, decide if necessary and create?
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    <p>I have a few classes in a project that I inherited that are really old, last I knew they compiled with CodeWarrior 8. I am now in XCode 3.2</p> <p>Here is an example of what I struggle with:</p> <pre><code>template &lt;class registeredObject&gt; typename std::vector&lt;registeredObject&gt;::iterator FxRegistry&lt;registeredObject&gt;::begin(void) { return mRegistryList.begin(); } </code></pre> <p>The errors are:</p> <pre><code>no 'typename std::vector&lt;registeredObject, std::allocator&lt;_CharT&gt; &gt;::iterator FxRegistry&lt;registeredObject&gt;::begin()' member function declared in class 'FxRegistry&lt;registeredObject&gt;' template definition of non-template 'typename std::vector&lt;registeredObject, std::allocator&lt;_CharT&gt; &gt;::iterator FxRegistry&lt;registeredObject&gt;::begin()' </code></pre> <p>How do I decide how to solve these and where do I start looking? </p> <p>UPDATE: Here is the FxRegistry Class:</p> <pre><code>template &lt;class registeredObject&gt; class FxRegistry { public: // Construction FxRegistry() {} ~FxRegistry(); // List management void Register(const registeredObject &amp;ob); void Unregister(registeredObject &amp;ob); // List iteration typedef std::vector&lt;registeredObject&gt;::iterator iterator; typedef std::vector&lt;registeredObject&gt;::const_iterator const_iterator; std::vector&lt;registeredObject&gt;::iterator begin(void); std::vector&lt;registeredObject&gt;::const_iterator begin(void) const; std::vector&lt;registeredObject&gt;::iterator end(void); std::vector&lt;registeredObject&gt;::const_iterator end(void) const; FxSize size(void); void Insert(iterator iter,const registeredObject &amp;ob); registeredObject &amp;operator[](FxInt32 index) { return mRegistryList[index]; } void clear() {mRegistryList.clear();}; protected: vector&lt;registeredObject&gt; mRegistryList; }; </code></pre> <p>I get errors on every line above almost that are: error: type 'std::vector >' is not derived from type 'FxRegistry' error: expected ';' before 'iterator'</p> <p>I thought an iterator was of vector type, so I would declare one vector iterator.</p>
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    1. COWell, the error message seems to be saying "*this member function here* was not declared in the class (you say it belongs to)".
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      1. POTemplates --> How to decipher, decide if necessary and create?
      1. USUncleBens
 

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