CGAL users discussion list

[Joachim Reichel <>]

Hi,

On 02/22/2011 05:57 PM, 

 wrote:
> Conversely if I compile the examples I have the following error for
> "algebraic_curves":
> 
> In file included from /usr/local/include/boost/numeric/interval.hpp:18,
>                  from
> /CGAL3.7/examples/Arrangement_on_surface_2/../../include/CGAL/Algebraic_kernel_d/Interval_evaluate_1.h:30,
>                  from
> /CGAL3.7/examples/Arrangement_on_surface_2/../../include/CGAL/Algebraic_kernel_d_1.h:41,
>                  from
> /CGAL-3.7/examples/Arrangement_on_surface_2/../../include/CGAL/Arr_algebraic_segment_traits_2.h:25,
>                  from
> /CGAL-3.7/examples/Arrangement_on_surface_2/algebraic_curves.cpp:14:
> /usr/local/include/boost/numeric/interval/hw_rounding.hpp:40:4: error:
> #error Boost.Numeric.Interval: Please specify rounding control mechanism.
> make[3]: ***
> [examples/Arrangement_on_surface_2/CMakeFiles/algebraic_curves.dir/algebraic_curves.o]
> Error 1
> make[2]: ***
> [examples/Arrangement_on_surface_2/CMakeFiles/algebraic_curves.dir/all]
> Error 2
> make[1]: *** [CMakeFiles/examples.dir/rule] Error 2
> make: *** [examples] Error 2
> Any suggestions?
> Thank you in advance!

it would be nice if you would include some important information, like which
linux distribution you are using, 32 or 64bit, compiler and version, Boost
version. And please attach the first ~45 lines of
/usr/local/include/boost/numeric/interval/hw_rounding.hpp.

Joachim