English 中文(简体)
我们能够使用“这”点子获得物体名称
原标题:Can we get the object name using "this" pointer
  • 时间:2011-11-15 07:04:11
  •  标签:
  • c++

我想知道,我们是否有可能利用C++中的“这一”点子获得现用物体名称。

感谢你事先提供帮助。

问题回答

也许意味着:

Myclass obj;

然后,你想要知道物体的名称是obj,你想通过thi做到这一点。

Answer is:
No You cannot. There is no reflection available in C++.

让我们承担以下职能:getName(),将物体的“名称”退回。 你们期望以下法典能取得什么结果?

struct Object {
  Object() { getName(); }
  void getName() { cout << getName(this) << endl; }
};

int main() {
  new Object;
}

或者,如何做到这一点?

int main() {
   Object o;
   Object& r = o;
   r.getName(); //should it print `r` or `o`?
}

简言之,当然没有。

是:

#include <iostream>
#include <typeinfo>
struct C
{
    C(){
        std::cout<<typeid(*this).name()<<std::endl;
    }
};
int main() {
    C c;
}




相关问题
Undefined reference

I m getting this linker error. I know a way around it, but it s bugging me because another part of the project s linking fine and it s designed almost identically. First, I have namespace LCD. Then I ...

C++ Equivalent of Tidy

Is there an equivalent to tidy for HTML code for C++? I have searched on the internet, but I find nothing but C++ wrappers for tidy, etc... I think the keyword tidy is what has me hung up. I am ...

Template Classes in C++ ... a required skill set?

I m new to C++ and am wondering how much time I should invest in learning how to implement template classes. Are they widely used in industry, or is this something I should move through quickly?

Print possible strings created from a Number

Given a 10 digit Telephone Number, we have to print all possible strings created from that. The mapping of the numbers is the one as exactly on a phone s keypad. i.e. for 1,0-> No Letter for 2->...

typedef ing STL wstring

Why is it when i do the following i get errors when relating to with wchar_t? namespace Foo { typedef std::wstring String; } Now i declare all my strings as Foo::String through out the program, ...

C# Marshal / Pinvoke CBitmap?

I cannot figure out how to marshal a C++ CBitmap to a C# Bitmap or Image class. My import looks like this: [DllImport(@"test.dll", CharSet = CharSet.Unicode)] public static extern IntPtr ...

Window iconification status via Xlib

Is it possible to check with the means of pure X11/Xlib only whether the given window is iconified/minimized, and, if it is, how?

热门标签