[Bug c++/11948] New: ICE on illegal code: initialising a static data member

[Bug c++/11948] New: ICE on illegal code: initialising a static data member

[o dot kullmann at swansea dot ac dot uk]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11948

           Summary: ICE on illegal code: initialising a static data member
           Product: gcc
           Version: 3.3.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: o dot kullmann at swansea dot ac dot uk
                CC: gcc-bugs at gcc dot gnu dot org

#include <limits> 
  template <class T> struct X { 
    static const int max = std::numeric_limits<int>::max(); 
    X() : m(max) {} 
    int m; 
  }; 
  template <class T> const int X<T>::max; 
int main() { X<int> x; } 
 
compiled with g++ version 3.3.1 (without options) yields 
internal compiler error: Segmentation fault 
 
This error doesn't occur with version 3.3 or 3.2.1, since these versions 
do not detect the invalid non-constant initialisation within the class. 
 
The code 
 
#include <limits> 
  template <class T> struct X { 
    static const int max = std::numeric_limits<int>::max(); 
  }; 
  template <class T> const int X<T>::max; 
int main() { X<int> x; } 
 
compiles with g++ version 3.3.1 although it is invalid.

[Bug c++/11948] [3.3 Regression] ICE on illegal code: initialising a static data member

[pinskia at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11948


pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
           Keywords|                            |ice-on-invalid-code
   Last reconfirmed|0000-00-00 00:00:00         |2003-08-16 14:57:37
               date|                            |
            Summary|ICE on illegal code:        |[3.3 Regression] ICE on
                   |initialising a static data  |illegal code: initialising a
                   |member                      |static data member
   Target Milestone|3.4                         |3.3.2


------- Additional Comments From pinskia at gcc dot gnu dot org  2003-08-16 14:57 -------
I can confirm this on 3.3.2 (20030815).  It is already fixed on the mainline (20030815).

>From Phil's regression hunter: Search converges between 2002-09-29-trunk (#91) and 2002-10-
02-trunk (#92).
It was accepted before that date.
Reduce code:
int f();

template <class T> struct X {
    static const int max = f();
    X() : m(max) {}
    int m;
  };
  template <class T> const int X<T>::max;
template struct X<int>;
int main() { X<int> x; }

[Bug c++/11948] [3.3 Regression] ICE on illegal code: initialising a static data member

[pinskia at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11948



------- Additional Comments From pinskia at gcc dot gnu dot org  2003-08-16 14:58 -------
Just a note the mainline rejects both of the sources.

[Bug c++/11948] [3.3 Regression] ICE on illegal code: initialising a static data member

[pinskia at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11948


pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |minor

[Bug c++/11948] [3.3 Regression] ICE on illegal code: initialising a static data member

[mmitchel at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11948


mmitchel at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|3.3.2                       |3.3.3


------- Additional Comments From mmitchel at gcc dot gnu dot org  2003-10-16 09:28 -------
Postponed until GCC 3.3.3.

[Bug c++/11948] [3.3 Regression] ICE on illegal code: initialising a static data member

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2003-12-21 22:08 -------
The patch which fixed it on the mainline is here: <http://gcc.gnu.org/ml/gcc-patches/2003-
01/msg02453.html> but it too huge to back port so closing as will not fix.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |WONTFIX


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11948