From 7374f65411d76dfe855d345f87dddb2fcda7ce5e Mon Sep 17 00:00:00 2001
From: Kjetil Orbekk <kjetil.orbekk@gmail.com>
Date: Fri, 10 Jun 2016 00:30:58 -0400
Subject: Unsafe pointer example.

---
 rust/graph/Cargo.toml |  4 ++++
 rust/graph/graph2.rs  | 17 +++++++++++++++++
 2 files changed, 21 insertions(+)
 create mode 100644 rust/graph/graph2.rs

(limited to 'rust/graph')

diff --git a/rust/graph/Cargo.toml b/rust/graph/Cargo.toml
index adabedc..eb0841b 100644
--- a/rust/graph/Cargo.toml
+++ b/rust/graph/Cargo.toml
@@ -9,3 +9,7 @@ itertools = "0.4.15"
 [[bin]]
 name = "graph"
 path = "graph.rs"
+
+[[bin]]
+name = "graph2"
+path = "graph2.rs"
diff --git a/rust/graph/graph2.rs b/rust/graph/graph2.rs
new file mode 100644
index 0000000..1e57f19
--- /dev/null
+++ b/rust/graph/graph2.rs
@@ -0,0 +1,17 @@
+#[derive(Debug)]
+struct Node<'a> {
+    label: i32,
+    next: Option<&'a Node<'a>>,
+}
+
+
+fn main () {
+    let mut n = Node { label: 1, next: None };
+    unsafe {
+        let raw = &mut n as *mut Node;
+        (*raw).next = Some(&n);
+    }
+    println!("{}", n.label);
+    println!("{}", n.next.unwrap().label);
+    println!("{}", n.next.unwrap().next.unwrap().label);
+}
-- 
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