libcxx initial import

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@103490 91177308-0d34-0410-b5e6-96231b3b80d8

test/utilities/utility/forward/move_copy.pass.cpp

@@ -0,0 +1,71 @@
+//===----------------------------------------------------------------------===//
+//
+// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// test move
+
+#include <utility>
+#include <cassert>
+
+int copy_ctor = 0;
+int move_ctor = 0;
+
+class A
+{
+#ifdef _LIBCPP_MOVE
+#else
+#endif
+
+public:
+
+#ifdef _LIBCPP_MOVE
+    A(const A&) {++copy_ctor;}
+    A& operator=(const A&);
+
+    A(A&&) {++move_ctor;}
+    A& operator=(A&&);
+#else
+    A(const A&) {++copy_ctor;}
+    A& operator=(A&);
+
+    operator std::__rv<A> () {return std::__rv<A>(*this);}
+    A(std::__rv<A>) {++move_ctor;}
+#endif
+
+    A() {}
+};
+
+A source() {return A();}
+const A csource() {return A();}
+
+void test(A) {}
+
+int main()
+{
+    A a;
+    const A ca = A();
+
+    assert(copy_ctor == 0);
+    assert(move_ctor == 0);
+
+    A a2 = a;
+    assert(copy_ctor == 1);
+    assert(move_ctor == 0);
+
+    A a3 = std::move(a);
+    assert(copy_ctor == 1);
+    assert(move_ctor == 1);
+
+    A a4 = ca;
+    assert(copy_ctor == 2);
+    assert(move_ctor == 1);
+
+    A a5 = std::move(ca);
+    assert(copy_ctor == 3);
+    assert(move_ctor == 1);
+}