From 333965318a5d000140d54be2a2a9e0832372f271 Mon Sep 17 00:00:00 2001
From: Adam Carpenter <53hornet@gmail.com>
Date: Thu, 21 Mar 2019 17:10:15 -0400
Subject: Added advanced features.

---
 advanced/unsafe-rust/src/main.rs | 62 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 advanced/unsafe-rust/src/main.rs

(limited to 'advanced/unsafe-rust/src')

diff --git a/advanced/unsafe-rust/src/main.rs b/advanced/unsafe-rust/src/main.rs
new file mode 100644
index 0000000..c9967a8
--- /dev/null
+++ b/advanced/unsafe-rust/src/main.rs
@@ -0,0 +1,62 @@
+fn main() {
+    let mut num = 5;
+
+    let r1 = &num as *const i32;
+    let r2 = &mut num as *mut i32;
+
+    let address = 0x012345usize;
+    let r = address as *const i32;
+
+    unsafe {
+        println!("{}", *r1);
+        println!("{}", *r2);
+    }
+
+    unsafe {
+        dangerous();
+    }
+
+
+    unsafe {
+        println!("c call: {}", abs(-3));
+    }
+
+
+    unsafe {
+        HELLO_WORLD = "test";
+        println!("{}", HELLO_WORLD);
+    }
+    println!("{}", HI_THERE);
+
+    add_to_count(3);
+
+    unsafe { 
+        println!("counter: {}", COUNTER);
+    }
+}
+
+unsafe fn dangerous() {}
+
+extern "C" {
+    fn abs(input: i32) -> i32;
+}
+
+static mut HELLO_WORLD: &str = "hello world";
+static mut COUNTER: u32 = 0;
+
+fn add_to_count(inc: u32) {
+    unsafe {
+        COUNTER += inc;
+    }
+}
+
+const HI_THERE: &str = "hi there";
+
+unsafe trait Foo {
+    // methods
+}
+
+unsafe impl Foo for i32 {
+    // implementations
+}
+
-- 
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