c++ - error c2056: undeclared identifier -

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so isn't real error, have no idea actual error because symptom vague. i'll include files here , guys tell me , think might causing undeclared identifier error.

system.h(66): error c2065: 'entitymanager' : undeclared identifier

system.h

/******************************************************************************* filename: system.h  author:  date: november 13, 2010  ********************************************************************************/   #ifndef system_h #define system_h  #include <string> #include <memory>  //the interfaces framework elements. #include "i_os.h" #include "i_graphics.h"  //the derived interface elements tailored platform. #include "windows_module.h" #include "d3d11_module.h" #include "entitymanager.h"  // ** author note ** temporary until ini file reading implemented #define full_screen false   /******************************************************************************* purpose:  central object responsible containing ,  systematically initializing, updating per frame, , shutting down objects  responsible various internal workings of framework.  serve nexus external entities retrieve data, interface engine  elements, interfacing between eachother. ********************************************************************************/  class system  { public:      /* framework elements , interfaces contain initialization context     created outside, filled out, , passed initalize function.     maintain polymorphic similar function declarations, while still having variable     parameters */      class initializecontext     {     public:         hinstance hinstance;     };      system();     ~system();      bool initialize(initializecontext &);     void run();     void shutdown();  public:      //pointer declarations of interface types each framework element     std::shared_ptr<i_os> m_os;     std::shared_ptr<i_graphics> m_graphics;     std::shared_ptr<entitymanager> m_entitymanager; };   /* global pointer entities use access public interface pointers entire framework.  ** author note ** : entities should refer interfaces, , non platform specific elements maintain crossplatform compatibility, (if can avoided)*/ extern std::shared_ptr<system> g_system;  #endif

entitymanager.h

/******************************************************************************* filename: entitymanager.h  author:   date: october 27, 2011  ********************************************************************************/  #ifndef entity_manager_h #define entity_manager_h  #include <vector> #include <map> #include <fstream> #include <memory> #include "entitybase.h" #include "entitylist.h"  /******************************************************************************* purpose: wil object responsible managing , updating various entities rendered in scene. reads scene file , dynamically creates instances of objects listed stored in vector. these objects can accessed individually either index or unique string identifier, or can obtain vector contains objects of same class type.  ********************************************************************************/ class entitymanager { public:     bool initialize();     bool frame();     void shutdown();  private:     basefactory m_factory;     std::vector <std::shared_ptr<baseentity> > m_entitylist;     std::map<std::string, std::shared_ptr<baseentity> > m_entitybynamelist;     std::map<std::string, std::vector<std::shared_ptr<baseentity> > > m_entitybyclasslist; };  #endif

so there wrong these causing entitymanager undeclared? it's error in output. think need anymore files , i'll include them.

this caused circular inclusion of header files. in case, looks either entitybase.h or entitylist.h includes system.h. simplest way solve remove #include "entitymanager.h" system.h , forward declaring class entitymanager; in system.h. note need #include "entitymanager.h" in system.cpp.


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