Eclipse CDT Indexer does not fully recognize c++11

Question

First of all, I know about the -std=c++11 flag to enable c++11 support and where to place it. I've appended -std=c++11 to Project -> Properties -> C/C++ Build -> Settings -> Tool Settings -> GCC C++ Compiler -> Miscellaneous -> Other Flags and compiling just works fine. But the indexer doesn't get along, for example if I want to use the emplace function of std::map (c++11), it will not find the emplace function.

#include <map>

int main() {
    std::map<int, int> data;
    data.emplace(5,5);

I've also checked out these related questions:

• Eclipse CDT indexer does not know C++11 containers
• Enable C++11 in Eclipse CDT (Juno/Kepler/Luna) indexer
• http://www.eclipse.org/forums/index.php/mv/msg/373462/909018/#msg_909018

Update: Now that I've played around it even doesn't recognize the std::map type, although compiling fine and eclipse finding all headers...

• Compiler Mingw64 GCC 5.2.0
• Eclipse Mars 4.5
• CDT 8.7

Answer 1

Eclipse Mars does it a bit differently than the previous versions.

Step one gets the indexer error highlighting working - covered in Enable C++11 in Eclipse CDT (Juno/Kepler/Luna) indexer linked above. If you've already done all this, I'll be smurfed if I know what you've run into. Mars has been a bit wonky so far.

1. Go to Project->properties->C/C++ General->Preprocessor Include Paths.
2. Click the Providers tab.
3. Click CDT GCC Built-in Compiler settings MinGW
4. Click Move Up button on the right.
5. Under Language Settings Provider Options
   1. Click off Use Global provider shared between projects
   2. Add -std=c++1y to the end of the command line in Command to get compiler specs.

By the way, if anyone knows where the global settings are so I can default this behaviour, please let me know.

Step 2 gets the compiler working

1. Go to Project->properties->C/C++ Build->Settings.
2. Go to Tool Settings tab.
3. Expand GCC C++ Compiler
4. Click Dialect Pick the C++ Standard you wish to target from the Language Standard drop-down.