Data commit

Task/Address-of-a-variable/Rust/address-of-a-variable-1.rust

@@ -0,0 +1,11 @@
+let v1 = vec![vec![1,2,3]; 10];
+println!("Original address: {:p}", &v1);
+let mut v2;
+// Override rust protections on reading from uninitialized memory
+unsafe {v2 = mem::uninitialized();}
+let addr = &mut v2 as *mut _;
+
+// ptr::write() though it takes v1 by value, v1s destructor is not run when it goes out of
+// scope, which is good since then we'd have a vector of free'd vectors
+unsafe {ptr::write(addr, v1)}
+println!("New address: {:p}", &v2);

Task/Address-of-a-variable/Rust/address-of-a-variable-2.rust

@@ -0,0 +1,2 @@
+let var = 1;
+println!("address of var: {:p}", &var);

Task/Address-of-a-variable/Rust/address-of-a-variable-3.rust

@@ -0,0 +1,5 @@
+let address: usize = 0x7ffc8f303130;
+unsafe {
+    let val = *(address as *const usize);
+    println!("value at {}: {:?}", address, val);
+}

Task/Address-of-a-variable/Rust/address-of-a-variable-4.rust

@@ -0,0 +1,5 @@
+unsafe {
+    *(0x7ffc8f303130 as *mut usize) = 1;
+    // Note that this invokes undefined behavior if 0x7ffc8f303130 is uninitialized. In that case, std::ptr::write should be used.
+    std::ptr::write(0x7ffc8f303130 as *mut usize, 1);
+}