From e4603f9d4a4e88dfe7ba21cdcd0e2cea3cae4bfd Mon Sep 17 00:00:00 2001
From: Hatter Jiang <jht5945@gmail.com>
Date: Sat, 18 Apr 2020 09:06:25 +0800
Subject: [PATCH] add c

---
 single_file_tests/rc.rs | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 single_file_tests/rc.rs

diff --git a/single_file_tests/rc.rs b/single_file_tests/rc.rs
new file mode 100644
index 0000000..013235f
--- /dev/null
+++ b/single_file_tests/rc.rs
@@ -0,0 +1,15 @@
+use std::rc::Rc;
+
+fn main() {
+    let a  = Rc::new(0);
+
+    println!("{}", Rc::strong_count(&a));
+    let b = a.clone();
+    println!("{}", Rc::strong_count(&a));
+    let c = Rc::clone(&a);
+    println!("{}", Rc::strong_count(&a));
+
+    println!("{}", a);
+    println!("{}", b);
+    println!("{}", c);
+}