Add example folder.

examples/box.rs

@@ -0,0 +1,11 @@
+extern crate ralloc;
+
+fn main() {
+    let a = Box::new(1);
+    let b = Box::new(2);
+    let c = Box::new(3);
+
+    assert_eq!(*a, 1);
+    assert_eq!(*b, 2);
+    assert_eq!(*c, 3);
+}

examples/manual.rs

@@ -0,0 +1,34 @@
+extern crate ralloc;
+
+use std::ptr;
+
+fn main() {
+    let ptr1 = ralloc::alloc(30, 3);
+    let ptr2 = ralloc::alloc(500, 20);
+
+    assert_eq!(0, ptr1 as usize % 3);
+    assert_eq!(0, ptr2 as usize % 20);
+
+    unsafe {
+        ptr::write_bytes(ptr1, 0x22, 30);
+        for i in 0..500 {
+            *ptr2.offset(i) = i as u8;
+        }
+
+        assert_eq!(*ptr1, 0x22);
+        assert_eq!(*ptr1.offset(5), 0x22);
+
+        assert_eq!(*ptr2, 0);
+        assert_eq!(*ptr2.offset(15), 15);
+
+        let ptr1 = ralloc::realloc(ptr1, 30, 300, 3);
+        for i in 0..300 {
+            *ptr1.offset(i) = i as u8;
+        }
+        assert_eq!(*ptr1, 0);
+        assert_eq!(*ptr1.offset(200), 200);
+
+        ralloc::free(ptr1, 30);
+        ralloc::free(ptr2, 500);
+    }
+}