Eclipse: symbol '???' could not be resolved [duplicate]

MyEclipse 明明编译成功，但是parser解析到就是有符号不能解析，可能的原因或解决方法：

1.window -> preferences -> C/C++ -> debug -> source lookup path > Path MappingName:whatever CompilationPath: \cygdirve\c Local file system path:C:\用cygwin下的c盘来替代当前的C盘 来查找需要的库文件

Name:whatever CompilationPath: \cygdirve\c Local file system path:C:\

用cygwin下的c盘来替代当前的C盘 来查找需要的库文件

2. window->proferences的设置对 project不起作用，需要在 project-> properties 中对 c/c++ make project 的 binary parse 进行设置到 win 下。

project-->properties-->C/C++ Build-->Settings--->Binary Parsers

将PE Windows parser打上勾

3. Eclipse: function 'to_string' could not be resolved [duplicate]

http://stackoverflow.com/questions/13458396/disable-eclipses-error-discovery-c11-false-positives

默认_cplusplus的值为199711L，改为201103L