c++ - Eclipse CDT for Linux -

i have written program using c++11 features.

/* * test.cpp * * created on: 05-jul-2015 * author: avirup */  #include<vector>  #include<iterator>  #include<iostream>  using namespace std;  int main() {      vector<int> v;      v.push_back(5);      v.push_back(7);      for(auto i=v.begin();i!=v.end();i++) {          cout<<*i<<endl;      }      for(auto i=v.cbegin();i!=v.cend();++i) {          cout<<*i<<endl;      }  }  

the program compiling correctly , showing results editor showing red lines below valid functions cbegin() , cend() constant reference iterators. annoying. how rid of this?

just completeness since has no answer , give explanation.

to achieve compiling c++ 11 (or version) , eclipse supporting need 2 things.

first compiler flag needs set -std=c++11 or -std=c++0x appended when calling g++ or whatever used.

• open properties properties project. select , right click ↦ properties (or alt+enter windows users)
• go c/c++ build ↦ settings, maybe select preferred configuration, ↦ gcc c++ compiler (or other compiler use) ↦ dialect.
• select combo or write flag other dialect flags if not present in combo (like -std=gnu++14 or -std=c++1z).

cdt call compiler -std=c++0x when compiling. part cdt supports c++11 , not show errors missing types , such. libstdc++ contains lines like

#if __cplusplus < 201103l # include <bits/c++0x_warning.h> #else // c++0x 

that causes errors , actual type declarations/definitions greyed out if view them in c/c++ editor. __cplusplus needs set correctly #define __cplusplus 201103l parsed , indexed cdt. done via project settings or can done whole workspace.

• go again project settings.
• c/c++ general ↦ preprocessor include paths, macros etc., maybe select preferred configuration, ↦ tab providers.
• select entry compiler (for me it’s cdt gcc built-in compiler settings mingw.
• add -std=c++11 or -std=c++0x command compiler specs textfield @ location.
• optional: select allocate console in console view , hit apply. should see #define __cplusplus 201103l in console.

to set whole workspace check use global provider shared between projects , click on workspace settings identical dialog opens.

i’m writing plug-in extends new c/c++ project wizard 1 can select c++ version project sets compiler flag correctly , above setting indexer , other stuff. dunno if ever integrated cdt or needs installed via plug-in. sure in https://www.cevelop.com in few months.