CGAL users discussion list

["Sebastien Loriot (GeometryFactory)" <>]

A golden rule in CGAL is that CGAL/basic.h should be included before
any other CGAL header (or a CGAL kernel that include CGAL/basic.h)

See 2.4
http://www.cgal.org/Manual/beta/doc_html/cgal_manual/Preliminaries/Chapter_main.html

Sebastien.


On 09/21/2011 10:32 PM, Frankie Li wrote:
> Hi all,
>
> I was wondering if anyone has seen the following problem. The version of
> CGAL I have been using primarily are 3.5.1 and 3.6.
>
>
> In the AABB_tree example ("AABB_triangle_3_example.cpp"), if we add an
> include for "exact predicates inexact constructions kernel in front of
> the <CGAL/AABB_traits.h> include:
>
>
> -----------------------------------------------------------------
>
> #include <iostream>
> #include <list>
>
> #include <CGAL/AABB_tree.h> // must be inserted before kernel
> #include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
> //^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ line added
> #include <CGAL/AABB_traits.h>
> #include <CGAL/AABB_triangle_primitive.h>
>
> #include <CGAL/Simple_cartesian.h>
> -----------------------------------------------------------------
>
>
> I would end up with the following error:
>
> function_objects.h:1869: error: no matching function for call to
> 'do_intersect(const CGAL::Sphere_3<CGAL::Simple_cartesian<double> >&,
> const CGAL::Bbox_3&, CGAL::Simple_cartesian<double>)'
>
>
> If I were to move the new line to *after* <CGAL/AABB_traits.h>
>
>
> -----------------------------------------------------------------
>
> #include <iostream>
> #include <list>
>
> #include <CGAL/AABB_tree.h> // must be inserted before kernel
>
> #include <CGAL/AABB_traits.h>
> #include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
> //^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ line added
> #include <CGAL/AABB_triangle_primitive.h>
>
> #include <CGAL/Simple_cartesian.h>
> -----------------------------------------------------------------
>
>
> The problem goes away. Am I not supposed to have the two files included
> at the same time? The version of gcc I'm using is gcc 4.4.5.
>
>
> Thanks,
>
>
> Frankie