Hello, Boost.PolyCollection will be released with Boost 1.65 on Aug 9. So far regression tests are looking OK for MSVC>=14.0, GCC>=5.0 and Clang>=3.7: http://www.boost.org/development/tests/develop/developer/poly_collection.htm... For Intel>=16.0, though, all tests pass except test_algorithm (admittedly the one involving more complex code): http://tinyurl.com/ya52o3e5 As I don't have local access to that compiler it is very difficult for me to try to find the needed workarounds. If someone with interest in Intel and access to the tools wants to volunteer to help fix the offending test case, please be my guest. Contact me either through this list or by private email. Thank you, Joaquín M López Muñoz