1 files changed, 43 insertions, 0 deletions
diff --git a/test/std/thread/thread.threads/thread.thread.class/thread.thread.id/lt.pass.cpp b/test/std/thread/thread.threads/thread.thread.class/thread.thread.id/lt.pass.cpp
new file mode 100644
index 0000000000000..de52b1d00cdf3
--- /dev/null
+++ b/test/std/thread/thread.threads/thread.thread.class/thread.thread.id/lt.pass.cpp
@@ -0,0 +1,43 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+//
+// UNSUPPORTED: libcpp-has-no-threads
+
+// <thread>
+
+// class thread::id
+
+// bool operator< (thread::id x, thread::id y);
+// bool operator<=(thread::id x, thread::id y);
+// bool operator> (thread::id x, thread::id y);
+// bool operator>=(thread::id x, thread::id y);
+
+#include <thread>
+#include <cassert>
+
+int main()
+{
+    std::thread::id id0;
+    std::thread::id id1;
+    std::thread::id id2 = std::this_thread::get_id();
+    assert(!(id0 <  id1));
+    assert( (id0 <= id1));
+    assert(!(id0 >  id1));
+    assert( (id0 >= id1));
+    assert(!(id0 == id2));
+    if (id0 < id2) {
+      assert( (id0 <= id2));
+      assert(!(id0 >  id2));
+      assert(!(id0 >= id2));
+    } else {
+      assert(!(id0 <= id2));
+      assert( (id0 >  id2));
+      assert( (id0 >= id2));
+    }
+}