The following invalid code snippet triggers an ICE on mainline:
========================================
template<int N...> void foo(int x[1][N]);
void bar()
{
int x[1][1];
foo(x);
}
========================================
bug.cc:1: error: ISO C++ does not include variadic templates
bug.cc: In function 'void bar()':
bug.cc:1: internal compiler error: tree check: expected class 'expression',
have 'constant' (integer_cst) in tsubst_pack_expansion, at cp/pt.c:6829
Please submit a full bug report, [etc.]
Looks like this was caused by your patch for variadic templates, Douglas:
2007-03-09 Douglas Gregor <[EMAIL PROTECTED]>
PR c++/20599
* typeck.c (check_return_expr): Check for bare parameter packs.
(comptypes): Compare template parameter packs and
type pack expansions.
...
--
Summary: [4.3 regression] ICE with ellipsis in template parameter
list
Product: gcc
Version: 4.3.0
Status: UNCONFIRMED
Keywords: ice-on-invalid-code, monitored
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: reichelt at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31141
