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C++ PATCH for c++/52743 (ICE with list-initialized array)
- From: Jason Merrill <jason at redhat dot com>
- To: gcc-patches List <gcc-patches at gcc dot gnu dot org>
- Date: Thu, 29 Mar 2012 10:13:30 -0400
- Subject: C++ PATCH for c++/52743 (ICE with list-initialized array)
List-initialization of an array of scalars is not considered a
user-defined conversion, so we need to check for it specifically to
avoid treating it as a standard conversion.
Tested x86_64-pc-linux-gnu, applying to trunk and 4.7.
commit efaacb4065cce51b7374c31ddfb4682a880cbfc5
Author: Jason Merrill <jason@redhat.com>
Date: Thu Mar 29 09:41:23 2012 -0400
PR c++/52743
* call.c (compare_ics): Handle ck_aggr like ck_list.
diff --git a/gcc/cp/call.c b/gcc/cp/call.c
index 88733f5..3c3dabb 100644
--- a/gcc/cp/call.c
+++ b/gcc/cp/call.c
@@ -7620,7 +7620,7 @@ compare_ics (conversion *ics1, conversion *ics2)
Specifically, we need to do the reference binding comparison at the
end of this function. */
- if (ics1->user_conv_p || ics1->kind == ck_list)
+ if (ics1->user_conv_p || ics1->kind == ck_list || ics1->kind == ck_aggr)
{
conversion *t1;
conversion *t2;
diff --git a/gcc/testsuite/g++.dg/cpp0x/initlist-array3.C b/gcc/testsuite/g++.dg/cpp0x/initlist-array3.C
new file mode 100644
index 0000000..1a94f4e
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp0x/initlist-array3.C
@@ -0,0 +1,10 @@
+// PR c++/52743
+// { dg-do compile { target c++11 } }
+
+void composite (int const (&) [2]);
+void composite (int const (&) [3]);
+
+int main ()
+{
+ composite({0,1}); // { dg-error "ambiguous" }
+}