Hi,
this issue, error recovery in C++98 mode, is a bit tricky: as far as I
can see, it boils down to the fact that in C++98 mode we don't want to
handle specially std::initializer_list. Otherwise, after the error
message we crash in convert_like_real where we try to handle ck_list, @
line 6056. With the below we emit the exact same diagnostic we emit for
init_list or any other non special name.
Tested x86_64-linux.
Thanks,
Paolo.
////////////////////
/cp
2013-07-30 Paolo Carlini <paolo.carl...@oracle.com>
PR c++/57947
* call.c (add_list_candidates): Only handle specially totype with
TYPE_HAS_LIST_CTOR (totype) set if cxx_dialect != cxx98.
/testsuite
2013-07-30 Paolo Carlini <paolo.carl...@oracle.com>
PR c++/57947
* g++.dg/parse/crash63.C: New.
Index: cp/call.c
===================================================================
--- cp/call.c (revision 201331)
+++ cp/call.c (working copy)
@@ -3370,7 +3370,8 @@ add_list_candidates (tree fns, tree first_arg,
;
/* If the class has a list ctor, try passing the list as a single
argument first, but only consider list ctors. */
- else if (TYPE_HAS_LIST_CTOR (totype))
+ else if (TYPE_HAS_LIST_CTOR (totype)
+ && cxx_dialect != cxx98)
{
flags |= LOOKUP_LIST_ONLY;
args = make_tree_vector_single (init_list);
Index: testsuite/g++.dg/parse/crash63.C
===================================================================
--- testsuite/g++.dg/parse/crash63.C (revision 0)
+++ testsuite/g++.dg/parse/crash63.C (working copy)
@@ -0,0 +1,10 @@
+// PR c++/57947
+// { dg-options "-std=c++98" }
+
+namespace std
+{
+ template <class E> class initializer_list {};
+ template <int N> struct D { D(initializer_list<int>) {} };
+ D<0> d {1, 2, 3}; // { dg-error "constructor|no matching" }
+ // { dg-warning "initializer list" "" { target *-*-* } 8 }
+}
