CGAL users discussion list

[Aaron Smith <>]

Hi cgal-discuss,

I am new to this list so first of all thanks for the library. I have been using CGAL to build Voronoi tessellations in one of my academic research codes. This works well with gcc and clang compilers, but when I try to use intel compilers on some supercomputers I get errors like the ones shown below (for example). I have success with Intel on 1 supercomputer but get these errors on 3 others. Is this a known issue? Am I missing something or is Intel not expected to be supported?

Note: CGAL version 5.1.1 and Intel 19 on linux (but no root access) systems. Installing headers locally and including via Makefile (not from CMake). I am using -std=c++17

Thanks,

Aaron

— 

local/include/CGAL/Kernel/hash_functions.h(25): error: namespace "std" has no member "enable_if_t"

  inline std::enable_if_t<std::is_same<typename K::Rep_tag, Cartesian_tag>::value, std::size_t>

              ^

In file included from local/include/CGAL/Kernel/global_functions.h(25),

                 from local/include/CGAL/Cartesian/Cartesian_base.h(22),

                 from local/include/CGAL/Simple_cartesian.h(20),

                 from local/include/CGAL/Exact_predicates_inexact_constructions_kernel.h(20),

                 from src/geometry/cgal.h(16),

                 from src/geometry/cgal.cc(13):

local/include/CGAL/Kernel/hash_functions.h(25): error: expected a ";"

  inline std::enable_if_t<std::is_same<typename K::Rep_tag, Cartesian_tag>::value, std::size_t>

                         ^

In file included from local/include/CGAL/Kernel/global_functions.h(25),

                 from local/include/CGAL/Cartesian/Cartesian_base.h(22),

                 from local/include/CGAL/Simple_cartesian.h(20),

                 from local/include/CGAL/Exact_predicates_inexact_constructions_kernel.h(20),

                 from src/geometry/cgal.h(16),

                 from src/geometry/cgal.cc(13):

local/include/CGAL/Kernel/hash_functions.h(195): error: no instance of overloaded function "CGAL::hash_value" matches the argument list

            argument types are: (const CGAL::Bbox_2)

      return CGAL::hash_value (bbox);

             ^

local/include/CGAL/Kernel/hash_functions.h(22): note: this candidate was rejected because at least one template argument could not be deduced

  using boost::hash_value;

               ^