[Bug c++/78761] C++14, compiler generate mangled name that can not be demangled

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78761

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2016-12-10
           Assignee|unassigned at gcc dot gnu.org      |jakub at gcc dot gnu.org
     Ever confirmed|0                           |1

--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 40294
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40294&action=edit
gcc7-pr78761.patch

That is a demangler bug.
The mangling has been added with
https://gcc.gnu.org/ml/gcc-patches/2013-04/msg01273.html
in r198150 and matches the spec
https://mentorembedded.github.io/cxx-abi/abi.html#mangling
                 ::= Da # auto
                 ::= Dc # decltype(auto)