错误：重新定义了'get_pointer'T * get_pointerT * pc ++ 11

如何解决错误：重新定义了'get_pointer'T * get_pointerT * pc ++ 11

错误：重新定义'get_pointer'T * get_pointer（T * p）

I am getting the error you see in the picture.

// Itemshop_manager.h

#pragma once


#include "stdafx.h" //error: 4th line

#ifdef ENABLE_ITEMSHOP_SYSTEM
class CItemShopManager : public singleton<CItemShopManager>
{
public:
    CItemShopManager();
    ~CItemShopManager();
    
    void                        Initialize();
    void                        LoadItems(BYTE bType,DWORD dwCount,TItemShopItem * pItems);
    void                        LoadEditors(DWORD dwCount,TItemShopEditor* pEditors);
    TItemShopItem               FindItemByID(DWORD id,DWORD category);
    void                        OpenItemShop(LPCHARACTER ch);
    void                        BuyItem(LPCHARACTER ch,DWORD id,DWORD category);
    void                        DeleteItem(LPCHARACTER ch,DWORD category,bool deleteFromDB = true);
    void                        AddItem(LPCHARACTER ch,DWORD vnum,DWORD count,DWORD price,DWORD category);
    void                        EditItem(LPCHARACTER ch,DWORD id);
private:
    std::vector<TItemShopItem>  m_vec_itemShopItems;
    std::set<LPCHARACTER>       m_set_pkCurrentViewer;
    std::vector<char*>          m_vec_pkEditors;
    void                        AddEditor(char* szName);
    bool                        IsEditor(LPCHARACTER ch);
    bool                        IsViewer(LPCHARACTER ch);
    void                        AddViewer(LPCHARACTER ch);
    void                        RemoveViewer(LPCHARACTER ch);
    void                        ViewerChatPacket(BYTE bType,const char * szChat);
};
#endif

// cmd_general.cpp

#ifdef ENABLE_ITEMSHOP_SYSTEM
#include "itemshop_manager.h"//error: line 52
#endif

// Itemshop_manager.cpp

#ifdef ENABLE_ITEMSHOP_SYSTEM
#include "itemshop_manager.h"//error: 8th line

感谢您的帮助。

stdafx.h

template<typename T>
T* get_pointer(T* p)
{
    return p;
}

解决方法

您从stdafx.h中丢失了#pragma once（或include guard）。可能一次或多次从一个.cpp中包含stdafx.h。

但是，如果您打算将stdafx.h用作PCH，则不需要#pragma once，但stdafx.h仅应包含在.cpp中，而不能包含在任何标头中。