[Bug c++/59005] New: Having designated inits in C++ with -std=c++11 does not cause any errors

[Bug c++/59005] New: Having designated inits in C++ with -std=c++11 does not cause any errors

[p.micolet at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59005

            Bug ID: 59005
           Summary: Having designated inits in C++ with -std=c++11 does
                    not cause any errors
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: p.micolet at gmail dot com

This piece of code:

#include <iostream>
using namespace std;

int main(int argc, char** argv)
{
    int test[2][2] ={
        [0]={1,2},
        [1]={3,4},
    };

    for (int x = 0; x<2;x++)
    {
        for (int y = 0; y<2; y++)
        {
            cout << test[x][y] << endl;
        }
    }

    return 0;
}

will compile and execute fine when running:

g++ -Wall -std=c++11 -pedantic test.cpp

No errors or warnings are shown, even if designated initializers are not
supported in the C++11 standard. 

Using: GCC 4.8.1
Target: x86_64-suse-linux
Flags: -Wall -std=c++11 -pedantic

[Bug c++/59005] Having designated inits in C++ with -std=c++11 does not cause any errors

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59005

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2013-11-05
     Ever confirmed|0                           |1

[Bug c++/59005] Having designated inits in C++ with -std=c++11 does not cause any errors

[daniel.kruegler at googlemail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59005

Daniel Krügler <daniel.kruegler at googlemail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |daniel.kruegler@googlemail.
                   |                            |com

--- Comment #2 from Daniel Krügler <daniel.kruegler at googlemail dot com> ---
According to my knowledge this support is a gcc extension
>From gcc-bugs-return-433674-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Nov 05 22:46:49 2013
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From: "kargl at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug fortran/58989] [Regression] internal compiler error when using reshape function
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http://gcc.gnu.org/bugzilla/show_bug.cgi?idX989

--- Comment #4 from kargl at gcc dot gnu.org ---
Author: kargl
Date: Tue Nov  5 22:44:42 2013
New Revision: 204425

URL: http://gcc.gnu.org/viewcvs?rev 4425&root=gcc&view=rev
Log:
2013-11-05  Steven G. Kargl <kargl@gcc.gnu.org>

    PR fortran/58989
    * check.c (gfc_check_reshape): ensure that shape is a constant
    expression.

2013-11-05  Steven G. Kargl <kargl@gcc.gnu.org>

    PR fortran/58989
    * gfortran.dg/reshape_6.f90: New test.

Added:
    branches/gcc-4_8-branch/gcc/testsuite/gfortran.dg/reshape_6.f90
Modified:
    branches/gcc-4_8-branch/gcc/fortran/ChangeLog
    branches/gcc-4_8-branch/gcc/fortran/check.c
    branches/gcc-4_8-branch/gcc/testsuite/ChangeLog

[Bug c++/59005] Having designated inits in C++ with -std=c++11 does not cause any errors

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59005

--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Yes, but that means it should be possible to get a diagnostic with -pedantic

[Bug c++/59005] Having designated inits in C++ with -std=c++11 does not cause any errors

[p.micolet at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59005

--- Comment #4 from p.micolet at gmail dot com ---
Hi Daniel, I think it's a gcc extension, but it's not part of the C++11
standard, so surely adding the -std=c++11 should cause this code to not compile
or am I misunderstanding something ?

Thanks

[Bug c++/59005] Having designated inits in C++ with -std=c++11 does not cause any errors

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59005

--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> ---
To get diagnostics for GNU extensions you need to use -pedantic, NOT
-std=c++11, see the manual.