[Bug c++/31260] [4.1/4.2/4.3 Regression] ICE: segmentation fault with template code

["pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #1 from pinskia at gcc dot gnu dot org  2007-03-19 09:26 -------
It seems like this can be made into valid code and still ICE.
The valid code is:
template<class T1> struct S1 {
template<bool T2> struct S2;
template<template<bool> class T3> struct S3 {
template<typename T4=S3<S2> > struct S4 {};
struct S5 : S4<>  {
};
};
};


-----
Note if I change how S5 is declared using a specific template argument instead
of <>, the crash goes away in that the follow compiles just fine:
template<class T1> struct S1 {
template<bool T2> struct S2;
template<template<bool> class T3> struct S3 {
template<typename T4=S3<S2> > struct S4 {};
struct S5 : S4<S3<S2> >   {
};
};
};


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
           Keywords|                            |ice-on-invalid-code, ice-on-
                   |                            |valid-code
   Last reconfirmed|0000-00-00 00:00:00         |2007-03-19 09:26:55
               date|                            |
            Summary|ICE: segmentation fault on  |[4.1/4.2/4.3 Regression]
                   |invalid code                |ICE: segmentation fault with
                   |                            |template code
   Target Milestone|---                         |4.1.3


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31260