diff --git a/trunk/research/ffempty/Makefile b/trunk/research/ffempty/Makefile
new file mode 100644
index 000000000..525f26cbd
--- /dev/null
+++ b/trunk/research/ffempty/Makefile
@@ -0,0 +1,2 @@
+ffempty: ffempty.cc Makefile
+	g++ -o ffempty ffempty.cc -g -O0 -ansi
diff --git a/trunk/research/ffempty/ffempty.cc b/trunk/research/ffempty/ffempty.cc
new file mode 100644
index 000000000..212bd68ff
--- /dev/null
+++ b/trunk/research/ffempty/ffempty.cc
@@ -0,0 +1,37 @@
+/*
+The MIT License (MIT)
+
+Copyright (c) 2013 winlin
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+/**
+g++ -o ffempty ffempty.cc -g -O0 -ansi
+*/
+
+#include <stdio.h>
+
+int main(int argc, char** argv)
+{
+    for (int i = 0; i < argc; i++) {
+        fprintf(stderr, "argv[%d]=%s\n", i, argv[i]);
+    }
+
+    return 0;
+}
+