[C++ testcase, committed] PR 57874

[Paolo Carlini]

Hi,

committed to mainline.

Thanks,
Paolo.

///////////////////////

2013-07-10  Paolo Carlini  <paolo.carl...@oracle.com>

        PR c++/57874
        * g++.dg/cpp0x/sfinae48.C: New.

Index: g++.dg/cpp0x/sfinae48.C
===================================================================
--- g++.dg/cpp0x/sfinae48.C     (revision 0)
+++ g++.dg/cpp0x/sfinae48.C     (working copy)
@@ -0,0 +1,21 @@
+// PR c++/57874
+// { dg-do compile { target c++11 } }
+
+namespace NX
+{
+  struct X {};
+  void foo(X) {}
+}
+
+namespace NY
+{
+  struct Y {};
+}
+
+template<class T>
+auto ADLfoo(T&&) -> decltype((foo(T{}), short()));
+
+char ADLfoo(...);
+
+static_assert(sizeof(ADLfoo(NY::Y{})) == 1, "");
+static_assert(sizeof(ADLfoo(NX::X{})) == 2, "");