[Dune] nullptr error gcc

[Bernd Flemisch]

Hi Feng,

you have to
#include "config.h"
from your top-level build directory, always should work within a Dune 
module and use the CMake-based Dune buildsystem. See this for a good 
introduction:
http://www.math.tu-dresden.de/~osander/research/sander-getting-started-with-dune.pdf

If you want to do it the hard way, you can start by manually setting 
preprocessor variables like "-DHAVE_NULLPTR=1", but that's not recommended.

Kind regards
Bernd

On 07/11/2016 03:01 PM, Feng Xing wrote:
> Hello,
>
> I would like to look for a little help about my first code with dune, 
> il contains one line in main(): cout<<“hello”<<endl;
> I got the following error when including "dune/common/nullptr.hh”:
>
> /usr/local/dune-2.4.1/include/dune/common/nullptr.hh:29:1: error: 
> expected ';' after class definition
>  } nullptr = {};              // and whose name is nullptr
> /usr/local/dune-2.4.1/include/dune/common/nullptr.hh:29:1: error: 
> qualifiers can only be specified for objects and functions
> /usr/local/dune-2.4.1/include/dune/common/nullptr.hh:29:3: error: 
> expected unqualified-id before 'nullptr'
>  } nullptr = {};              // and whose name is nullptr
>
>
> Il seems that it’s from const obj dune_nullptr_t in nullptr.hh. I use 
> GCC4.9 (or GCC5.3) with std=c++11 in mac. Dune version is 2.4.1.
>
> Thank you very much.
>
> Best regards,
>
> Feng Xing
> Postdoc INRIA France
>
>
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-- 
_______________________________________________________________

Bernd Flemisch                         phone: +49 711 685 69162
IWS, Universität Stuttgart             fax:   +49 711 685 60430
Pfaffenwaldring 61            email: bernd at iws.uni-stuttgart.de
D-70569 Stuttgart            url: www.hydrosys.uni-stuttgart.de
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