[Bug c++/55241] New: [C++11] diagnostics show sizeof...(T) as sizeof(T...)

[Bug c++/55241] New: [C++11] diagnostics show sizeof...(T) as sizeof(T...)

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55241

             Bug #: 55241
           Summary: [C++11] diagnostics show sizeof...(T) as sizeof(T...)
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Keywords: diagnostic
          Severity: minor
          Priority: P3
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: redi@gcc.gnu.org


template<unsigned N>
  using Num = int;

template<typename... T>
  using Count = Num<sizeof...(T)>;

Count<int, char, void> i;

This is incorrectly rejected by current trunk due to Bug 54859, which reveals
that the diagnostic shows sizeof(T...) not sizeof...(T)

e.C:5:33: error: integral expression 'sizeof (T ...)' is not constant

[Bug c++/55241] [C++11] diagnostics show sizeof...(T) as sizeof(T...)

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55241

Jason Merrill <jason at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2013-02-15
         AssignedTo|unassigned at gcc dot       |jason at gcc dot gnu.org
                   |gnu.org                     |
     Ever Confirmed|0                           |1

--- Comment #1 from Jason Merrill <jason at gcc dot gnu.org> 2013-02-15 19:32:14 UTC ---
Created attachment 29474
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29474
55241.patch

Patch waiting for 4.8 to branch.

[Bug c++/55241] [C++11] diagnostics show sizeof...(T) as sizeof(T...)

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55241

--- Comment #2 from Jason Merrill <jason at gcc dot gnu.org> 2013-03-17 02:34:45 UTC ---
Author: jason
Date: Sun Mar 17 02:34:31 2013
New Revision: 196726

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=196726
Log:
    PR c++/55241
    * error.c (dump_expr) [SIZEOF_EXPR]: Print sizeof... properly.

Added:
    trunk/gcc/testsuite/g++.dg/diagnostic/variadic1.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/error.c

[Bug c++/55241] [C++11] diagnostics show sizeof...(T) as sizeof(T...)

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55241

Jason Merrill <jason at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED
   Target Milestone|---                         |4.9.0

--- Comment #3 from Jason Merrill <jason at gcc dot gnu.org> 2013-04-01 21:04:36 UTC ---
Fixed for 4.9.