obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 42 insertions, 0 deletions

diff --git a/gcc/testsuite/g++.dg/cpp0x/variadic12.C b/gcc/testsuite/g++.dg/cpp0x/variadic12.C
new file mode 100644
index 000000000..30108c999
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp0x/variadic12.C
@@ -0,0 +1,42 @@
+// { dg-options "-std=gnu++0x" }
+// A tuple type
+template<typename... Args> struct tuple { };
+
+// Determine if two types are the same
+template<typename T, typename U>
+struct is_same {
+  static const bool value = false;
+};
+
+template<typename T>
+struct is_same<T, T> {
+  static const bool value = true;
+};
+
+// Append 'T' to the end of Tuple
+template<typename T, typename Tuple>
+struct append_to_tuple;
+
+template<typename T, typename... Args>
+struct append_to_tuple<T, tuple<Args...> > {
+  typedef tuple<Args..., T> type;
+};
+
+// Reverse a sequence of arguments (and return the result as a tuple)
+template<typename... Args> struct reverse;
+
+template<typename T, typename... Args>
+struct reverse<T, Args...> {
+  typedef typename append_to_tuple<T, typename reverse<Args...>::type>::type
+    type;
+};
+
+template<>
+struct reverse<> {
+  typedef tuple<> type;
+};
+
+int a0[is_same<reverse<>::type, tuple<> >::value? 1 : -1];
+int a1[is_same<reverse<int>::type, tuple<int> >::value? 1 : -1];
+int a2[is_same<reverse<char, int>::type, tuple<int, char> >::value? 1 : -1];
+int a3[is_same<reverse<char, int, long>::type, tuple<long, int, char> >::value? 1 : -1];