为什么Netbean不会识别`cbegin（）`，`cend（）`，`unordered_set`和其他C ++特性？ [英] Why doesn't Netbeans recognize `cbegin()`, `cend()`, `unordered_set`, among other C++ features?

问题描述

我的C ++应用程序在Netbeans中按预期编译和运行。但是，代码帮助不能识别 cbegin（）， cend（）， unordered_set ，如下红色下划线所示：

但是，代码帮助不能识别 end（）。无效，我试着去项目 - >属性 - >代码协助 - > C ++标准 - > C ++ 11。

解决方案

请确保您使用Netbeans版本> = 7.2，因为在此版本中引入了C ++ 11支持（请参见C / C ++）。

如果你已经将C ++标准设置为NB中的C ++ 11，你可以重新排序你的procject：

1. 选择您的C ++专案 - >右键


2. 代码协助 - > Reparse Project

---

编辑：

我使用 NetBeans 7.3 RC1 （使用 GCC 4.7.2 ）：

  #include< iostream> 
＃include< list> 
 
 int main（）
 {
 std :: list< int> mylist = {5,10,15,20}; 
 
 std :: cout<< mylist contains：; 
 
 for（auto it = mylist.cbegin（）; it！= mylist.cend（）; ++ it）
 std :: cout< ''<< *它; 
 
 std :: cout<< '\\\
'; 
 
 return 0;如果C ++ Standard设置为默认值，这将失败，但是使用C ++ 11（
} 
  

$ b < 项目属性 - > Build - > C ++ Compiler - > C ++ Standard = C ++ 11 b $ b

My C++ application compiles and runs as expected in Netbeans. However, Code Assistance does not recognize terms such as cbegin(), cend(), unordered_set, as evinced by red underscores:

Code assistance does recognize end(), however. To no avail, I have tried going to Project -> Properties -> Code Assistance -> C++ Standard -> C++11. What else should I update or configure to let Netbeans Code Assistance recognize these terms?

解决方案

Make shure you use a Netbeans Version >= 7.2 because the the C++11 support was introduced in this version (see "C/C++").

If you already have set the C++ standard to C++11 in NB, you can reparse your procject:

1. Selcect your C++ Project --> right click
2. Code Assistance -> Reparse Project

---

Edit:

I tested the methods with the following code under NetBeans 7.3 RC1 (using GCC 4.7.2):

#include <iostream>
#include <list>

int main ()
{
  std::list<int> mylist = {5,10,15,20};

  std::cout << "mylist contains:";

  for (auto it = mylist.cbegin(); it != mylist.cend(); ++it)
    std::cout << ' ' << *it;

  std::cout << '\n';

  return 0;
}

With C++ Standard set to default this fails, but with C++11 (Project Properties -> Build -> C++ Compiler -> C++ Standard = C++11)it works.

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