sfinae47.C: New.

2013-06-23  Paolo Carlini  <paolo.carlini@oracle.com>

	* g++.dg/cpp0x/sfinae47.C: New.

From-SVN: r200353

gcc/testsuite/ChangeLog

+2013-06-23  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	* g++.dg/cpp0x/sfinae47.C: New.
+
 2013-06-23  Oleg Endo <olegendo@gcc.gnu.org>
 
 	PR target/52483
@@ -9,13 +13,13 @@
 
 2013-06-23  Sriraman Tallam  <tmsriram@google.com>
 
-	* testsuite/gcc.target/i386/intrinsics_1.c: New test.
-	* testsuite/gcc.target/i386/intrinsics_2.c: Ditto.
-	* testsuite/gcc.target/i386/intrinsics_3.c: Ditto.
-	* testsuite/gcc.target/i386/intrinsics_4.c: Ditto.
-	* testsuite/gcc.target/i386/intrinsics_5.c: Ditto.
-	* testsuite/gcc.target/i386/intrinsics_6.c: Ditto.
-	* testsuite/gcc.target/i386/avx-1.c: Provide macros for builtins
+	* gcc.target/i386/intrinsics_1.c: New test.
+	* gcc.target/i386/intrinsics_2.c: Ditto.
+	* gcc.target/i386/intrinsics_3.c: Ditto.
+	* gcc.target/i386/intrinsics_4.c: Ditto.
+	* gcc.target/i386/intrinsics_5.c: Ditto.
+	* gcc.target/i386/intrinsics_6.c: Ditto.
+	* gcc.target/i386/avx-1.c: Provide macros for builtins
 	needing immediate arguments in f16cintrin.h and rtmintrin.h.
 
 2013-06-21  Tobias Burnus  <burnus@net-b.de>

gcc/testsuite/g++.dg/cpp0x/sfinae47.C

+// Source: Comment 16 of PR51213
+// { dg-do compile { target c++11 } }
+
+template <class T>
+T && declval();
+
+template <class T>
+constexpr auto hasSize(int) -> decltype(declval<T&>().size(), bool())
+{ return true; }
+
+template <class T>
+constexpr bool hasSize(...)
+{ return false; }
+
+struct A
+{
+  int size();
+};
+
+struct B : private A
+{
+};
+
+static_assert(hasSize<A>(0),  "A");
+static_assert(!hasSize<B>(0), "B");