[Bug c++/58820] New: lambda multiple inheritance operator() not ambiguous

[sutambe at yahoo dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58820

            Bug ID: 58820
           Summary: lambda multiple inheritance operator() not ambiguous
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: sutambe at yahoo dot com

The following lambda overloads are not ambiguous but they are reported as such.

template <class... Fs> 
struct overload_set : Fs...
{
  overload_set(Fs... f)
    : Fs(f)...
  {}  
};

template <class... Fs> 
overload_set<Fs...> overload(Fs... x)
{
  return overload_set<Fs...>(x...);
}

int main(void)
{
  double d = 10; 
  overload(
      [](int i)  { },
      [](double d)  { },
      [](char c) { } 
    )(d);
}