Move test into test/std subdirectory.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@224658 91177308-0d34-0410-b5e6-96231b3b80d8

test/std/input.output/iostreams.base/ios.base/ios.base.cons/dtor.pass.cpp

@@ -0,0 +1,86 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <ios>
+
+// class ios_base
+
+// ~ios_base()
+
+#include <ios>
+#include <string>
+#include <locale>
+#include <cassert>
+
+class test
+    : public std::ios
+{
+public:
+    test()
+    {
+        init(0);
+    }
+};
+
+bool f1_called = false;
+bool f2_called = false;
+bool f3_called = false;
+
+void f1(std::ios_base::event ev, std::ios_base& stream, int index)
+{
+    if (ev == std::ios_base::erase_event)
+    {
+        assert(!f1_called);
+        assert( f2_called);
+        assert( f3_called);
+        assert(stream.getloc().name() == "C");
+        assert(index == 4);
+        f1_called = true;
+    }
+}
+
+void f2(std::ios_base::event ev, std::ios_base& stream, int index)
+{
+    if (ev == std::ios_base::erase_event)
+    {
+        assert(!f1_called);
+        assert(!f2_called);
+        assert( f3_called);
+        assert(stream.getloc().name() == "C");
+        assert(index == 5);
+        f2_called = true;
+    }
+}
+
+void f3(std::ios_base::event ev, std::ios_base& stream, int index)
+{
+    if (ev == std::ios_base::erase_event)
+    {
+        assert(!f1_called);
+        assert(!f2_called);
+        assert(!f3_called);
+        assert(stream.getloc().name() == "C");
+        assert(index == 6);
+        f3_called = true;
+    }
+}
+
+int main()
+{
+    {
+        test t;
+        std::ios_base& b = t;
+        b.register_callback(f1, 4);
+        b.register_callback(f2, 5);
+        b.register_callback(f3, 6);
+    }
+    assert(f1_called);
+    assert(f2_called);
+    assert(f3_called);
+}