CGAL users discussion list

[Cody Rose <>]

Hello,

With CGAL 4.1 I am unable to use the Nef_polyhedron_3 package with 
BOOST_RESULT_OF_USE_DECLTYPE defined. I am using:

CGAL 4.1
the CORE numeric library, along with its dependencies (GMP etc)
Boost 1.47
Visual Studio 2010

The problem does *not* appear in CGAL 3.9. The following code reproduces 
the problem for me:

// This is the problematic define.
#define BOOST_RESULT_OF_USE_DECLTYPE

#include <vector>

#include <boost/range/algorithm.hpp>
#include <boost/range/adaptors.hpp>

#include <CGAL/Cartesian.h>
#include <CGAL/CORE_Expr.h>
#include <CGAL/Nef_polyhedron_3.h>

typedef CORE::Expr                        NT;
typedef CGAL::Cartesian<NT>                K;
typedef CGAL::Nef_polyhedron_3<K>        nef_polyhedron_3;

int main() {
    std::vector<int> a(0, 3);
    a[0] = 1;
    a[1] = 2;
    a[3] = 3;
    std::vector<int> b;

    // With BOOST_RESULT_OF_USE_DECLTYPE defined, the following line 
causes an error.
    nef_polyhedron_3 foo;
    // Without BOOST_RESULT_OF_USE_DECLTYPE defined, the following line 
causes an error.
    boost::copy(a | boost::adaptors::transformed([](int x) { return x * 
2; }), std::back_inserter(b));
    return 0;
}

Thank you,
Cody Rose