diff --git a/test/common/geometry/test_intersectionentityset.cc b/test/common/geometry/test_intersectionentityset.cc index 06f684f46ca11e1a29167f4a99581d5f8391561c..f24ffb817e96212e9cf28ee92d5e1869e58b2742 100644 --- a/test/common/geometry/test_intersectionentityset.cc +++ b/test/common/geometry/test_intersectionentityset.cc @@ -2,6 +2,7 @@ #include <memory> #include <vector> +#include <numeric> #include <dune/common/exceptions.hh> #include <dune/common/float_cmp.hh> @@ -135,8 +136,7 @@ int main (int argc, char *argv[]) try intersectionEntitySet.build(geoSet0, geoSet1); // greatest common divisor to compute number of intersections - const auto gcd = [](int a, int b, const auto& impl) -> int { return b == 0 ? a : impl(b, a % b, impl); }; - const auto numIntersections = b + a - gcd(a, b, gcd); + const auto numIntersections = b + a - std::gcd(a, b); if (intersectionEntitySet.size() != numIntersections) DUNE_THROW(Dune::Exception, "Wrong number of line segment intersections."