re PR c++/59705 (possible compiler bug regarding SFINAE (program compiles fine))

2014-05-11  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/59705
	* g++.dg/cpp0x/sfinae51.C: New.

	PR c++/58353
	* g++.dg/cpp0x/variadic157.C: New.

From-SVN: r210310

gcc/testsuite/ChangeLog

+2014-05-11  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/59705
+	* g++.dg/cpp0x/sfinae51.C: New.
+
+	PR c++/58353
+	* g++.dg/cpp0x/variadic157.C: New.
+
 2014-05-10  Oleg Endo  <olegendo@gcc.gnu.org>
 
 	PR target/51244

gcc/testsuite/g++.dg/cpp0x/sfinae51.C

+// PR c++/59705
+// { dg-do compile { target c++11 } }
+
+struct HasIter {
+   typedef int * const_iterator;
+};
+
+struct NoIter {
+};
+
+template <typename T>
+constexpr bool foo(const T &, typename T::const_iterator *)
+{
+  return true;
+}
+
+template <typename T>
+constexpr bool foo(const T &, ...)
+{
+  return false;
+}
+
+HasIter has_iter;
+NoIter no_iter;
+
+static_assert (!foo(no_iter, 0), "");
+static_assert (foo(has_iter, 0), "");
+static_assert (foo<HasIter>(has_iter, 0), "");

gcc/testsuite/g++.dg/cpp0x/variadic157.C

+// PR c++/58353
+// { dg-do compile { target c++11 } }
+
+template<class E, E V, int CNT>
+struct seq_t
+{
+  template<E... Es> struct seq{};
+
+  template<int N, E... Es>
+  struct gen : gen<N - 1, V, Es...>{};
+
+  template<E... Es>
+  struct gen<0, Es...> : seq<Es...>{};
+
+  struct bits_t{ E e[CNT]; };
+
+  template<E... Es>
+  static bits_t init(seq<Es...>) {return {{Es...}};}
+
+  static bits_t init() {return init(gen<CNT>{});}
+};
+
+typedef seq_t<int, 123, 5> wow;
+
+int main()
+{
+  wow::init();
+}