什么是（距离）单词中的问题，其中声明结构？ [英] what is problem in (distance) word where declara struct with it ?

问题描述

#include<iostream>
using namespace std;
struct distance
{ int x; };

int main()
{
	distance d1; // what is wrong in this word (distance), compiler say {IntelliSense: "distance" is ambiguous}
				// i thank this is not recerved key word in c++
		return 0;
}

推荐答案

Quote：

//我感谢这不是c ++中的关键词

// i thank this is not recerved key word in c++

你的假设是正确的。因此，您与 STL 发生冲突（ VS 2012 我发现距离在STL的''i xutility内部标题''内定义。您可以通过使用命名空间std; 或 struct 定义注释来轻松验证这一点（在这两种情况下，模糊性消失）。

Your assumption is right. Hence you have a collision with the STL (with VS 2012 I found distance definition inside the STL''s ''xutility internal header''). You may easily verify this either by commenting the using namespace std; or your struct definition (in both cases the ambiguity vanishes).

它怎么可能是一个关键字。



以下是你可以解决它的方法：1）重命名 struct distance ; 2）在Visual Studio中关注旧名称 distance ，使用上下文菜单中的转到定义项。你会看到这个声明。我做到了：

How could it be a keyword.

Here is how you could sort it out: 1) rename struct distance; 2) put your cared on the old name distance in Visual Studio, use "Go to definition item" of context menu. You will see that declaration. I did it:

template<class _InIt> inline
    typename iterator_traits<_InIt>::difference_type
        __CLRCALL_OR_CDECL distance(_InIt _First, _InIt _Last)
    {   // return distance between iterators
    typename iterator_traits<_InIt>::difference_type _Off = 0;
    _Distance2(_First, _Last, _Off, _Iter_cat(_First));
    return (_Off);
    }

这是来自文件 xutility ;显然，你有这个包括通过包括 iostream 。



问题解决了。下次，你可以自己动手。

-SA

This is from the file xutility; apparently, you got this include via included iostream.

Problem solved. Next time, you will be able to do it by yourself.

—SA

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