[Bug libstdc++/77776] New: C++17 std::hypot implementation is poor

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77776

            Bug ID: 77776
           Summary: C++17 std::hypot implementation is poor
           Product: gcc
           Version: 7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: redi at gcc dot gnu.org
  Target Milestone: ---

Make it better.

https://gcc.gnu.org/ml/gcc-patches/2016-09/msg02075.html
https://gcc.gnu.org/ml/gcc-patches/2016-09/msg02120.html