虚函数数组

发布于 2024-11-29 13:08:48 字数 962 浏览 0 评论 0原文

当逆向工程和使用外部类时，我经常尝试重新定义库中的这些类：

class GameEngine // Exported with "GetGameEngine"
{
public:
    virtual void foo1() = 0;
    virtual void foo2() = 0;
    virtual void foo3() = 0;
    virtual void foo4() = 0;
    virtual void foo5() = 0;
    virtual void foo6() = 0;
    virtual void foo7() = 0;
    virtual void foo8() = 0;
    virtual void foo9() = 0;
    virtual void foo10() = 0;
    virtual void foo11() = 0;
    virtual void foo12() = 0;
    virtual int GetGameStatus() = 0; //0x30
    virtual void foo14() = 0;
    virtual void foo15() = 0;
    virtual void foo16() = 0;
    virtual int AnotherUsefulFunction() = 0; //0x40
};

基本上我在外部调用 GetGameStatus 函数。是否有某种结构或可能性允许我这样写：

class GameEngine // Exported with "GetGameEngine"
{
public:
    FUNCTABLE(12);
    virtual int GetGameStatus() = 0; //0x30
    FUNCTABLE(14,16);
    virtual int AnotherUsefulFunction() = 0; //0x40
};

它会清理我的代码很多。

原文

When reverse engineering and using external classes I often try to redefine those classes in my library:

class GameEngine // Exported with "GetGameEngine"
{
public:
    virtual void foo1() = 0;
    virtual void foo2() = 0;
    virtual void foo3() = 0;
    virtual void foo4() = 0;
    virtual void foo5() = 0;
    virtual void foo6() = 0;
    virtual void foo7() = 0;
    virtual void foo8() = 0;
    virtual void foo9() = 0;
    virtual void foo10() = 0;
    virtual void foo11() = 0;
    virtual void foo12() = 0;
    virtual int GetGameStatus() = 0; //0x30
    virtual void foo14() = 0;
    virtual void foo15() = 0;
    virtual void foo16() = 0;
    virtual int AnotherUsefulFunction() = 0; //0x40
};

Basically I call the GetGameStatus function externally. Is there some structure or a possibility that allows me to write it this like:

class GameEngine // Exported with "GetGameEngine"
{
public:
    FUNCTABLE(12);
    virtual int GetGameStatus() = 0; //0x30
    FUNCTABLE(14,16);
    virtual int AnotherUsefulFunction() = 0; //0x40
};

It would clean up my code a lot.

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一瞬间的火花 2024-12-06 13:08:48

查看 boost::preprocessor，具体位于它的 REPEAT 宏。像这样的东西应该有效：

#include <boost/preprocessor/repetition/repeat.hpp>

#define FUNC(fun_z, fun_n, fun_data) virtual void foo ## fun_n () = 0;
#define FUNCTABLE(count) BOOST_PP_REPEAT(count, FUNC, 0)

Look at boost::preprocessor, specifically at its REPEAT macro. Something like this should work:

#include <boost/preprocessor/repetition/repeat.hpp>

#define FUNC(fun_z, fun_n, fun_data) virtual void foo ## fun_n () = 0;
#define FUNCTABLE(count) BOOST_PP_REPEAT(count, FUNC, 0)

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