From 529b9e5ad7f2f134dbcb7b3549bdb29e689c190c Mon Sep 17 00:00:00 2001
From: Paolo Carlini <paolo.carlini@oracle.com>
Date: Wed, 8 Jul 2015 16:08:10 +0000
Subject: [PATCH] re PR c++/66421 (G++ fails compilation when assigning tuple
 created with variadic template to auto variable)

2015-07-08  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/66421
	* g++.dg/cpp0x/auto45.C: New.

From-SVN: r225563
---
 gcc/testsuite/ChangeLog             |  5 +++++
 gcc/testsuite/g++.dg/cpp0x/auto45.C | 21 +++++++++++++++++++++
 2 files changed, 26 insertions(+)
 create mode 100644 gcc/testsuite/g++.dg/cpp0x/auto45.C

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index b288f0d..bff4944 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2015-07-08  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/66421
+	* g++.dg/cpp0x/auto45.C: New.
+
 2015-07-08  Vladimir Makarov  <vmakarov@redhat.com>
 
 	PR middle-end/66334
diff --git a/gcc/testsuite/g++.dg/cpp0x/auto45.C b/gcc/testsuite/g++.dg/cpp0x/auto45.C
new file mode 100644
index 0000000..bc0d5b8
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp0x/auto45.C
@@ -0,0 +1,21 @@
+// PR c++/66421
+// { dg-do compile { target c++11 } }
+
+template<typename... T> struct tuple { };
+
+template<typename... T> tuple<T...> make_tuple(T&&...) { return {}; }
+
+template <typename... Params>
+void foo(Params... params) {
+    auto t = make_tuple((int)params...);
+}
+
+template <typename... Params>
+void bar(Params... params) {
+  tuple<decltype((int)params)...> t = make_tuple((int)params...);
+}
+
+int main() {
+    foo(1,2,3);
+    bar(1,2,3);
+}
-- 
2.7.4