From 16d3151c9bbc1386a7cacae3aa31525ddd73913d Mon Sep 17 00:00:00 2001
From: paolo <paolo@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Tue, 24 Mar 2015 10:50:36 +0000
Subject: [PATCH] 2015-03-24  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/59988
	* g++.dg/cpp0x/vt-59988.C: New.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@221623 138bc75d-0d04-0410-961f-82ee72b054a4
---
 gcc/testsuite/g++.dg/cpp0x/vt-59988.C | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 gcc/testsuite/g++.dg/cpp0x/vt-59988.C

diff --git a/gcc/testsuite/g++.dg/cpp0x/vt-59988.C b/gcc/testsuite/g++.dg/cpp0x/vt-59988.C
new file mode 100644
index 00000000000..ab611f5d865
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp0x/vt-59988.C
@@ -0,0 +1,28 @@
+// PR c++/59988
+// { dg-do compile { target c++11 } }
+
+template<template<typename...> class C, typename... T>
+struct is_valid_specialization {
+  typedef struct { char _; } yes;
+  typedef struct { yes _[2]; } no;
+
+  template<template<typename...> class D, typename... U>
+  static yes test(D<U...>*);
+  template<template<typename...> class D, typename... U>
+  static no test(...);
+
+  constexpr static bool value = (sizeof(test<C, T...>(0)) == sizeof(yes));
+};
+
+template<typename T>
+struct Test1 { };
+
+template<typename T1, typename T2>
+struct Test2 { };
+
+template<typename...>
+struct TestV { };
+
+static_assert(!is_valid_specialization<Test1, int>::value, "");
+static_assert(!is_valid_specialization<Test2, int>::value, "");
+static_assert(!is_valid_specialization<TestV, int>::value, "");
-- 
2.11.4.GIT