多个“无法解析”使用Eclipse和minGW的问题 [英] Multiple "could not be resolved" problems using Eclipse with minGW

问题描述

我最近安装了（最新的版本）用于C / C ++开发人员的Eclipse IDE和minGW（4.8.1），以帮助我在很长时间后恢复到C ++。

I have recently installed (the latest builds of) 'Eclipse IDE for C/C++ Developers' and minGW (4.8.1) to help me to get back into C++ after a long time away.

我已将 -std = c ++ 11 添加到其他标志在 C / C ++编译/设置/工具设置/ GCC C ++编译器/其他

我有一个小程序， C ++ 11功能（例如使用 chrono 库， .emplace_back ）。

I have a small program utilizing a number of C++11 features (e.g. using the chrono library, .emplace_back).

运行后，我在问题窗口中遇到多个未解决的问题，如下面的粘贴。）

After Run I get multiple unresolved issues in the Problems window, as Pasted below).

有趣的是，程序编译并运行确定。

Interestingly, the program does compile and run ok.

1. 有了这个，我在Eclipse中没有设置来解决这些问题吗？

1. With this, is there something I'm not setting up in Eclipse to resolve these issues?

有没有人知道在minGW（4.8.1）中 to_string（）以下不编译：

Does anyone know if there still an issue with the to_string() function in minGW (4.8.1) e.g. the following does not compile:

window.setTitle("Bullets on screen: " + to_string(bullets.size()) + " currentSlice: " + to_string(currentSlice) + " FT: " + to_string(ft) + " FPS: " + to_string(fps) );

它使用Visual Studio Express 2013编译（虽然它有一个问题， c $ c> chrono 库，因此切换到minGW）。

It does compile using Visual Studio Express 2013 (though it has an issue with the accuracy of the chrono library, hence the switch to minGW).

谢谢。

Eclipse'Problem'窗口输出：

Eclipse 'Problem' window output:

Description Resource Path Location Type
 Symbol 'duration' could not be resolved chronotest.cpp /chronotest/src line 19 Semantic Error
 Function 'now' could not be resolved Test2.cpp /Test2/src line 143 Semantic Error
 Function 'duration_cast' could not be resolved Test2.cpp /Test2/src line 160 Semantic Error
 Function 'now' could not be resolved Test2.cpp /Test2/src line 158 Semantic Error
 Symbol 'chrono' could not be resolved Test2.cpp /Test2/src line 8 Semantic Error
 Type 'std::centi' could not be resolved chronotest.cpp /chronotest/src line 20 Semantic Error
 Type 'std::chrono::seconds' could not be resolved chronotest.cpp /chronotest/src line 24 Semantic Error
 Type 'std::time_t' could not be resolved chronotest.cpp /chronotest/src line 48 Semantic Error
 Symbol 'duration' could not be resolved chronotest.cpp /chronotest/src line 47 Semantic Error
 Function 'now' could not be resolved chronotest.cpp /chronotest/src line 44 Semantic Error
 Function 'now' could not be resolved chronotest.cpp /chronotest/src line 39 Semantic Error
 Type 'std::chrono::system_clock' could not be resolved chronotest.cpp /chronotest/src line 38 Semantic Error
 Function 'end' could not be resolved Test2.cpp /Test2/src line 214 Semantic Error
 Symbol 'time_point' could not be resolved chronotest.cpp /chronotest/src line 38 Semantic Error
 Function 'end' could not be resolved Test2.cpp /Test2/src line 212 Semantic Error
 Type 'milli' could not be resolved Test2.cpp /Test2/src line 161 Semantic Error
 Method 'count' could not be resolved Test2.cpp /Test2/src line 161 Semantic Error
 Symbol 'duration_cast' could not be resolved Test2.cpp /Test2/src line 160 Semantic Error
 Symbol 'duration' could not be resolved Test2.cpp /Test2/src line 161 Semantic Error
 Method 'count' could not be resolved chronotest.cpp /chronotest/src line 51 Semantic Error
 Symbol 'duration_cast' could not be resolved chronotest.cpp /chronotest/src line 30 Semantic Error
 Method 'count' could not be resolved chronotest.cpp /chronotest/src line 30 Semantic Error
 Function 'to_time_t' could not be resolved chronotest.cpp /chronotest/src line 48 Semantic Error
 Method 'count' could not be resolved chronotest.cpp /chronotest/src line 32 Semantic Error
 Function 'ctime' could not be resolved chronotest.cpp /chronotest/src line 50 Semantic Error
 Method 'count' could not be resolved chronotest.cpp /chronotest/src line 33 Semantic Error
 Symbol 'duration' could not be resolved chronotest.cpp /chronotest/src line 22 Semantic Error
 Invalid arguments '
 Candidates are:
 __gnu_cxx::__normal_iterator<Bullet *,std::vector<Bullet,std::allocator<Bullet>>> erase(__gnu_cxx::__normal_iterator<Bullet *,std::vector<Bullet,std::allocator<Bullet>>>)
 __gnu_cxx::__normal_iterator<Bullet *,std::vector<Bullet,std::allocator<Bullet>>> erase(__gnu_cxx::__normal_iterator<Bullet *,std::vector<Bullet,std::allocator<Bullet>>>, __gnu_cxx::__normal_iterator<Bullet *,std::vector<Bullet,std::allocator<Bullet>>>)
 ' Test2.cpp /Test2/src line 212 Semantic Error
 Symbol 'ratio' could not be resolved chronotest.cpp /chronotest/src line 22 Semantic Error
 Invalid arguments '
 Candidates are:
 #0 remove_if(#0, #0, #1)
 ' Test2.cpp /Test2/src line 212 Semantic Error
 Symbol 'duration_cast' could not be resolved chronotest.cpp /chronotest/src line 28 Semantic Error
 Method 'count' could not be resolved chronotest.cpp /chronotest/src line 28 Semantic Error
 Method 'emplace_back' could not be resolved Test2.cpp /Test2/src line 191 Semantic Error
 Symbol 'ratio' could not be resolved chronotest.cpp /chronotest/src line 19 Semantic Error
 Symbol 'duration' could not be resolved chronotest.cpp /chronotest/src line 20 Semantic Error
 Symbol 'duration' could not be resolved chronotest.cpp /chronotest/src line 21 Semantic Error
 Function 'begin' could not be resolved Test2.cpp /Test2/src line 212 Semantic Error
 Symbol 'ratio' could not be resolved chronotest.cpp /chronotest/src line 21 Semantic Error

---

：对于不包含剩余to_string的错误详细信息，请参考。 Eclipse'Problem'窗口输出如下：

---

: Apologies for not including error details for the remaining "to_string". The Eclipse 'Problem' window output has the following:

    Description Resource    Path    Location    Type
'to_string' was not declared in this scope  Test2.cpp   /Test2/src  line 170    C/C++ Problem
Function 'to_string' could not be resolved  Test2.cpp   /Test2/src  line 170    Semantic Error
Function 'to_string' could not be resolved  Test2.cpp   /Test2/src  line 170    Semantic Error
unused variable 'currentSlice' [-Wunused-variable]  Test2.cpp   /Test2/src  line 125    C/C++ Problem
Function 'to_string' could not be resolved  Test2.cpp   /Test2/src  line 170    Semantic Error
Invalid arguments '
Candidates are:
void setTitle(const sf::String &)
'   Test2.cpp   /Test2/src  line 170    Semantic Error
Function 'to_string' could not be resolved  Test2.cpp   /Test2/src  line 170    Semantic Error

推荐答案

转到 Project - >属性 - > C / C ++ General - >预处理器包括路径，宏等 - >提供者 - > CDT GCC内置编译器设置，停用使用项目之间共享的全局提供程序并添加命令行参数 -std = c ++ 11 。

Go to Project -> Properties -> C/C++ General -> Preprocessor Include Paths, Macros, etc. -> Providers -> CDT GCC built-in compiler settings, deactivate Use global provider shared between projects and add the command line argument -std=c++11.

eclipse实时代码分析与构建编译器不共享相同的设置。您还可以在 Window - >中全局更改设置（不仅仅是项目）偏好设置 - > C / C ++ - >构建 - >设置 - > CDT GCC内置编译器设置。

The eclipse live code analysis does not share the same settings with the build compiler. You can also change the setting globally (not just for the project) in Window -> Preferences -> C/C++ -> Build -> Settings -> CDT GCC Built-in Compiler Settings.

编辑：您需要 #include< string> 使用 std :: to_string 。

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