The following invalid code snippet triggers an ICE since at least GCC 2.95.3:
template<intstruct A
{
int x[1][1];
A() : x((int[1][]){{0}}) {}
};
A<0a;
bug.cc: In constructor 'A<<anonymous>::A()':
bug.cc:4: error: multidimensional array must have bounds for all dimensions
except the first
bug.cc: In constructor 'A<<anonymous>::A() [with int <anonymous= 0]':
bug.cc:7: instantiated from here
bug.cc:4: internal compiler error: tree check: expected class 'type', have
'exceptional' (error_mark) in tsubst_copy_and_build, at cp/pt.c:9085
Please submit a full bug report, [etc.]

Comment #1 from reichelt at gcc dot gnu dot org 2006-08-14 08:31
Testing a patch.

Comment #2 from patchapp at dberlin dot org 2006-08-15 00:45
Subject: Bug number PR c++/28711
A patch for this bug has been added to the patch tracker.
The mailing list url for the patch is

Comment #3 from pinskia at gcc dot gnu dot org 2006-08-16 05:44
Confirmed, this only ICEs with checking turned on.

Comment #4 from reichelt at gcc dot gnu dot org 2006-08-17 08:02
Subject: Bug 28711

Author: reichelt
Date: Thu Aug 17 08:02:39 2006
New Revision: 116210

URL:
Log:
PR c++/28711
* pt.c (tsubst_copy_and_build) <case CNSTRUCTR>: Robustify.

* gdg/template/ctor8.C: New test.

Added:

Modified:
trunk/gcc/cp/ChangeLog
trunk/gcc/cp/pt.c
trunk/gcc/testsuite/ChangeLog

Comment #5 from reichelt at gcc dot gnu dot org 2006-08-17 08:58
Fixed on mainline.