[Bug c++/83932] New: No diagnostic issued for missing default argument in lambda-expression

[smw at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83932

            Bug ID: 83932
           Summary: No diagnostic issued for missing default argument in
                    lambda-expression
           Product: gcc
           Version: 7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: smw at gcc dot gnu.org
  Target Milestone: ---

This code

  void f() {
    auto l = [](int i=1, int j) {};
  }

should give me a diagnostic about parameter "j" missing a default argument (or
something).  GCC (all versions tested, requires C++14 mode or later) remains
petulantly silent.