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POList iterator not dereferencable run time
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  1. POList iterator not dereferencable run time
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    copied!<p>I am getting this error on runtime Expression: List iterator not dereferencable. below is the code I am using.</p> <p>header file</p> <pre><code>//----------------------------------------------------------------------------- // // Name: Fletcher_TargetingSystem.h // // Author: Alan Fletcher (20040797) // // Desc: class to select a target from the opponents currently in a bot's // perceptive memory. //----------------------------------------------------------------------------- #include "2d/Vector2D.h" #include &lt;list&gt; #include "../../AbstTargetingSystem.h" class AbstRaven_Bot; class Fletcher_TargetingSystem : public AbstTargetingSystem { public: Fletcher_TargetingSystem(AbstRaven_Bot* owner); //each time this method is called the opponents in the owner's sensory //memory are examined and the closest is assigned to m_pCurrentTarget. //if there are no opponents that have had their memory records updated //within the memory span of the owner then the current target is set //to null void Update(); void closestBotStrategy(); void setCurrentTarget(AbstRaven_Bot* t); AbstRaven_Bot* getCurrentTarget(); void setCurrentOwner(AbstRaven_Bot* t); AbstRaven_Bot* getCurrentOwner(); }; class Fletcher_getClosestBotStrategy { public: Fletcher_getClosestBotStrategy() {} Fletcher_getClosestBotStrategy(AbstRaven_Bot* owner); //each time this method is called the opponents in the owner's sensory //memory are examined and the closest is assigned to m_pCurrentTarget. //if there are no opponents that have had their memory records updated //within the memory span of the owner then the current target is set //to null void pickTarget(AbstRaven_Bot&amp; owner); }; #endif </code></pre> <p>c++ file</p> <pre><code>#include "Fletcher_TargetingSystem.h" #include "../../AbstRaven_Bot.h" #include "../../Raven_SensoryMemory.h" #include "../../Debug/DebugConsole.h" //-------------------------------- ctor --------------------------------------- //----------------------------------------------------------------------------- Fletcher_TargetingSystem::Fletcher_TargetingSystem(AbstRaven_Bot* owner): AbstTargetingSystem(owner){ } //-------------------------------- ctor --------------------------------------- //----------------------------------------------------------------------------- Fletcher_getClosestBotStrategy::Fletcher_getClosestBotStrategy(AbstRaven_Bot* owner){ } std::list&lt;AbstRaven_Bot*&gt; SensedBots; std::list&lt;AbstRaven_Bot*&gt;::const_iterator curBot; //----------------------------- Update ---------------------------------------- //----------------------------------------------------------------------------- //----------------------------- closestPlayer ---------------------------------------- //----------------------------------------------------------------------------- void Fletcher_getClosestBotStrategy::pickTarget(AbstRaven_Bot&amp; owner) { double ClosestDistSoFar = MaxDouble; Fletcher_TargetingSystem *fTS = new Fletcher_TargetingSystem(&amp;owner); for (curBot; curBot != SensedBots.end(); ++curBot) { //make sure the bot is alive and that it is not the owner if ((*curBot)-&gt;isAlive() &amp;&amp; (*curBot != fTS-&gt;getCurrentOwner()) ) { double dist = Vec2DDistanceSq((*curBot)-&gt;Pos(), fTS-&gt;getCurrentOwner()-&gt;Pos()); if (dist &lt; ClosestDistSoFar) { ClosestDistSoFar = dist; fTS-&gt;setCurrentTarget(*curBot);// = *curBot; } } } //return *fTS; } void Fletcher_TargetingSystem::Update() { // currentStrategy = targetClosestBotStrategy; // target = currentStrategy.pickTarget(); //std::list&lt;AbstRaven_Bot*&gt; SensedBots; SensedBots = getCurrentOwner()-&gt;GetSensoryMem()-&gt;GetListOfRecentlySensedOpponents(); curBot = SensedBots.begin(); //std::list&lt;AbstRaven_Bot*&gt;::const_iterator curBot = SensedBots.begin(); setCurrentTarget(0);// = 0; Fletcher_getClosestBotStrategy* fGCBS = new Fletcher_getClosestBotStrategy(this-&gt;getCurrentOwner()); fGCBS-&gt;pickTarget(**curBot); } AbstRaven_Bot* Fletcher_TargetingSystem::getCurrentOwner(){ return m_pOwner; } AbstRaven_Bot* Fletcher_TargetingSystem::getCurrentTarget(){ return m_pCurrentTarget; } void Fletcher_TargetingSystem::setCurrentTarget(AbstRaven_Bot* t){ m_pCurrentTarget = t; } void Fletcher_TargetingSystem::setCurrentOwner(AbstRaven_Bot* t){ m_pOwner = m_pOwner; } </code></pre> <p>any help in telling me how to fix this would be appreciated Thanking You</p> <p>Also what does the error mean exactly and how/when does it occur</p>
 

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