[Bug c++/67318] New: [6 regression] Parsing error when using abbreviated integral type names in template parameter pack declaration

[Bug c++/67318] New: [6 regression] Parsing error when using abbreviated integral type names in template parameter pack declaration

[adrian.wielgosik at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67318

            Bug ID: 67318
           Summary: [6 regression] Parsing error when using abbreviated
                    integral type names in template parameter pack
                    declaration
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: adrian.wielgosik at gmail dot com
  Target Milestone: ---

The following code:

template<short...>
struct MyStruct;

int main(){}

Results in an error:

main.cpp:16:15: error: expected ‘>’ before ‘...’ token
 template<short...>
               ^

Happens for: short, long, long long, unsigned, signed, unsigned short...
Does not happen for: all the above with "int" appended, int, char, bool.
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https://gcc.gnu.org/bugzilla/show_bug.cgi?idf761

Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                URL|                            |https://gcc.gnu.org/ml/gcc-
                   |                            |patches/2015-08/msg01357.ht
                   |                            |ml
                 CC|                            |Joost.VandeVondele at mat dot ethz
                   |                            |.ch

--- Comment #1 from Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> ---
patch posted https://gcc.gnu.org/ml/gcc-patches/2015-08/msg01357.html

[Bug c++/67318] [6 regression] Parsing error when using abbreviated integral type names in template parameter pack declaration

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67318

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2015-08-22
      Known to work|                            |4.9.3, 5.2.0
     Ever confirmed|0                           |1
      Known to fail|                            |6.0

[Bug c++/67318] [6 regression] Parsing error when using abbreviated integral type names in template parameter pack declaration

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67318

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |6.0

[Bug c++/67318] [6 regression] Parsing error when using abbreviated integral type names in template parameter pack declaration

[paolo.carlini at oracle dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67318

Paolo Carlini <paolo.carlini at oracle dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jason at gcc dot gnu.org

--- Comment #1 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Regressed in r225621.

[Bug c++/67318] [6 regression] Parsing error when using abbreviated integral type names in template parameter pack declaration

[paolo.carlini at oracle dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67318

Paolo Carlini <paolo.carlini at oracle dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
           Assignee|unassigned at gcc dot gnu.org      |paolo.carlini at oracle dot com

--- Comment #2 from Paolo Carlini <paolo.carlini at oracle dot com> ---
I think I know what's going wrong: r225621 cleaned up a little too much, and we
aren't consuming the ellipsis. I'm testing the attached.

[Bug c++/67318] [6 regression] Parsing error when using abbreviated integral type names in template parameter pack declaration

[paolo.carlini at oracle dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67318

--- Comment #3 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Created attachment 36310
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36310&action=edit
Draft

[Bug c++/67318] [6 regression] Parsing error when using abbreviated integral type names in template parameter pack declaration

[paolo at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67318

--- Comment #4 from paolo at gcc dot gnu.org <paolo at gcc dot gnu.org> ---
Author: paolo
Date: Thu Sep 10 15:36:54 2015
New Revision: 227650

URL: https://gcc.gnu.org/viewcvs?rev=227650&root=gcc&view=rev
Log:
/cp
2015-09-10  Paolo Carlini  <paolo.carlini@oracle.com>

        PR c++/67318
        * parser.c (cp_parser_parameter_declaration): Consume the ellipsis
        and set template_parameter_pack_p also when the type is null.

/testsuite
2015-09-10  Paolo Carlini  <paolo.carlini@oracle.com>

        PR c++/67318
        * g++.dg/cpp0x/variadic166.C: New.

Added:
    trunk/gcc/testsuite/g++.dg/cpp0x/variadic166.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/parser.c
    trunk/gcc/testsuite/ChangeLog

[Bug c++/67318] [6 regression] Parsing error when using abbreviated integral type names in template parameter pack declaration

[paolo.carlini at oracle dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67318

Paolo Carlini <paolo.carlini at oracle dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED
           Assignee|paolo.carlini at oracle dot com    |unassigned at gcc dot gnu.org

--- Comment #5 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Fixed.