[Bug c++/40687] New: [C++0x]: error with auto and 7.1.6.4/7 in N2914

[Bug c++/40687] New: [C++0x]: error with auto and 7.1.6.4/7 in N2914

[bernhard dot merkle at googlemail dot com]

Hi, 

I think there is a bug in g++ 4.4 concerning the implementation of auto.
7.1.6.4/7 in N2914

The following program compiles, but it should be rejected by g++.

int main() 
{
    auto i = 10, d = 5.0; // error! shall not compile in C++0x

    return 0;
}

$ /opt/gcc-4.4/bin/g++ -v
Using built-in specs.
Target: i686-pc-cygwin
Configured with: ./configure --prefix=/opt/gcc-4.4
Thread model: single
gcc version 4.4.0 (GCC)

$ /opt/gcc-4.4/bin/g++ --std=c++0x -Wall g++4.4BugAutoN2914.cpp
g++4.4BugAutoN2914.cpp: In function 'int main()':
g++4.4BugAutoN2914.cpp:4: warning: unused variable 'i'
g++4.4BugAutoN2914.cpp:4: warning: unused variable 'd'


-- 
           Summary: [C++0x]: error with auto and 7.1.6.4/7 in N2914
           Product: gcc
           Version: 4.4.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: bernhard dot merkle at googlemail dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40687

[Bug c++/40687] [C++0x]: error with auto and 7.1.6.4/7 in N2914

[bernhard dot merkle at googlemail dot com]

------- Comment #1 from bernhard dot merkle at googlemail dot com  2009-07-08 20:07 -------
Created an attachment (id=18162)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=18162&action=view)
program which should not compile


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40687

[Bug c++/40687] [C++0x]: error with auto and 7.1.6.4/7 in N2914

[paolo dot carlini at oracle dot com]

------- Comment #2 from paolo dot carlini at oracle dot com  2009-07-09 00:35 -------
To be sure, let's CC Jason about these auto issues...


-- 

paolo dot carlini at oracle dot com changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40687

[Bug c++/40687] [C++0x]: error with auto and 7.1.6.4/7 in N2914

[jason at gcc dot gnu dot org]

------- Comment #3 from jason at gcc dot gnu dot org  2009-07-14 18:50 -------
Yeah, that's a known issue; it's XFAILed in one of the auto tests.


-- 

jason at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2009-07-14 18:50:44
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40687

[Bug c++/40687] [C++0x]: error with auto and 7.1.6.4/7 in N2914

[jason at gcc dot gnu dot org]

-- 

jason at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |jason at gcc dot gnu dot org
                   |dot org                     |
             Status|NEW                         |ASSIGNED
   Last reconfirmed|2009-07-14 18:50:44         |2009-11-03 16:08:23
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40687

[Bug c++/40687] [C++0x]: error with auto and 7.1.6.4/7 in N2914

[jason at gcc dot gnu dot org]

------- Comment #4 from jason at gcc dot gnu dot org  2009-11-03 17:11 -------
Subject: Bug 40687

Author: jason
Date: Tue Nov  3 17:11:08 2009
New Revision: 153855

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=153855
Log:
        PR c++/40687
        * pt.c (do_auto_deduction): Diagnose inconsistent deduction.

Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/pt.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/g++.dg/cpp0x/auto3.C


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40687

[Bug c++/40687] [C++0x]: error with auto and 7.1.6.4/7 in N2914

[jason at gcc dot gnu dot org]

------- Comment #5 from jason at gcc dot gnu dot org  2009-11-03 18:49 -------
Fixed for 4.5.


-- 

jason at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED
   Target Milestone|---                         |4.5.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40687