libcxx initial import

llvm-svn: 103490
diff --git a/libcxx/test/strings/basic.string/string.iterators/end.pass.cpp b/libcxx/test/strings/basic.string/string.iterators/end.pass.cpp
new file mode 100644
index 0000000..cf43bdd
--- /dev/null
+++ b/libcxx/test/strings/basic.string/string.iterators/end.pass.cpp
@@ -0,0 +1,39 @@
+//===----------------------------------------------------------------------===//
+//
+// ÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊThe LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string>
+
+//       iterator end();
+// const_iterator end() const;
+
+#include <string>
+#include <cassert>
+
+template <class S>
+void
+test(S s)
+{
+    const S& cs = s;
+    typename S::iterator e = s.end();
+    typename S::const_iterator ce = cs.end();
+    if (s.empty())
+    {
+        assert(e == s.begin());
+        assert(ce == cs.begin());
+    }
+    assert(e - s.begin() == s.size());
+    assert(ce - cs.begin() == cs.size());
+}
+
+int main()
+{
+    typedef std::string S;
+    test(S());
+    test(S("123"));
+}