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C++11 and indexer [RESOLVED] [message #763373]

Fri, 09 December 2011 11:50

Harry Houdini
Messages: 131
Registered: February 2010

Senior Member

Hello,

I a m trying to enter the C++11 world, and CDT doesn't recognize

#include <unordered_map>

I have no problem when compiling in command line.

Is there something to do so that the parser does work with C++11 stuff ?

I use the Indigo version. Maybe the nightly build doesn't have the problem anymore ?

Thanks.

[Updated on: Wed, 21 December 2011 10:24]

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Re: using C++11 with CDT and gcc 4.5.3 [message #764517 is a reply to message #763373]

Mon, 12 December 2011 05:39

Axel Mueller
Messages: 1827
Registered: July 2009

Senior Member

What's your specific problem? When I add

#include <unordered_map>

to my code I have no problem.
Perhaps there is some define missing (to use the C++11 code)?

Eclipse CDT Indigo, gcc 4.4.3, Ubuntu

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Re: using C++11 with CDT and gcc 4.5.3 [message #764618 is a reply to message #764517]

Mon, 12 December 2011 09:41

Harry Houdini
Messages: 131
Registered: February 2010

Senior Member

My paths were poorly set.

Now, the include is OK (I can access the unordered_map from there), but unordered_map isn't recogniezd in the code : Symbol 'unordered_map' could not be resolved

I use it as std::unordered_map.

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Re: using C++11 with CDT and gcc 4.5.3 [message #765013 is a reply to message #764618]

Tue, 13 December 2011 04:01

Axel Mueller
Messages: 1827
Registered: July 2009

Senior Member

I guess you have to add the following option for the compiler "-std=c++0x".

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Re: using C++11 with CDT and gcc 4.5.3 [message #765630 is a reply to message #765013]

Wed, 14 December 2011 07:22

Harry Houdini
Messages: 131
Registered: February 2010

Senior Member

Where ?

I don't use Eclipse to compile, because I compile through network with distcc.
But if there is a solution to set it thsi configuration in Eclipse, it is welcome. Smile

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Re: using C++11 with CDT and gcc 4.5.3 [message #766109 is a reply to message #765630]

Thu, 15 December 2011 03:43

Axel Mueller
Messages: 1827
Registered: July 2009

Senior Member

Oodini wrote on Wed, 14 December 2011 13:22

Where ?

I don't use Eclipse to compile, because I compile through network with distcc.
But if there is a solution to set it thsi configuration in Eclipse, it is welcome.

The option "-std=c++0x" sets a special define. You should add this define to your project (Project properties->C/C++ general->Paths and Symbols

Before you ask
- search this forum
- see the FAQ http://wiki.eclipse.org/CDT/User/FAQ
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Re: using C++11 with CDT and gcc 4.5.3 [message #769012 is a reply to message #766109]

Wed, 21 December 2011 03:45

Harry Houdini
Messages: 131
Registered: February 2010

Senior Member

Well, when I set that in the Synbols tab, "-std=c++0x" is splitted in two parts : std and c++0x...

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Re: using C++11 with CDT and gcc 4.5.3 [message #769019 is a reply to message #769012]

Wed, 21 December 2011 04:09

Andris Zeila
Messages: 2
Registered: November 2011

Junior Member

Setting __GXX_EXPERIMENTAL_CXX0X__ define in project options/c++/symbols worked for me.

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Re: using C++11 with CDT and gcc 4.5.3 [message #769208 is a reply to message #769019]

Wed, 21 December 2011 10:20

Harry Houdini
Messages: 131
Registered: February 2010

Senior Member

Thanks a lot ! It does work.

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Re: C++11 and indexer [RESOLVED] [message #871440 is a reply to message #763373]

Sun, 13 May 2012 14:20

Nobody Mising name
Messages: 64
Registered: July 2010

Member

Doesn't work for me:

#include <iostream>
#include <memory>
#include <string>
#include <unordered_map>
using namespace std;

int main()
{
    shared_ptr<string> ptr(new string("str"));
    auto i = ptr->find("t"); // <=== 'find' could not be resolved
    cout << i << endl;      // <=== Invalid overload of 'endl'
    unordered_map<int, string> m; // <=== invalid template arguments
}

Using mingw gcc 4.7 and CDT 8.0.2.201202111925, added "-std=c++11" to compiler and discovery options. The macro __GXX_EXPERIMENTAL_CXX0X__ is among built-in values in Symbols.

Can anyone help?

Reproduced with CDT 8.1.0.201205092110.

[Updated on: Sun, 13 May 2012 16:48]

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Re: C++11 and indexer [RESOLVED] [message #872152 is a reply to message #871440]

Tue, 15 May 2012 10:50

Harry Houdini
Messages: 131
Registered: February 2010

Senior Member

The tool chain must also be set.

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Re: C++11 and indexer [RESOLVED] [message #872676 is a reply to message #872152]

Wed, 16 May 2012 11:21

Nobody Mising name
Messages: 64
Registered: July 2010

Member

Harry Houdini wrote on Tue, 15 May 2012 10:50

The tool chain must also be set.

Created new hello world project with MinGW toolchain. So it is set. Discovery options works as expected. The problem is with indexer, why it doesn't recognize symbols?

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