add a note to the README about this being a tutorial for an ancient version of Rust

[rust-101.git] / src / part07.rs

diff --git a/src/part07.rs b/src/part07.rs
index 8f65c2ba638302dd632de74751753e00f7cd4136..b04d766b8515a6cdb1583fd38af2b120cc353e5a 100644 (file)
--- a/src/part07.rs
+++ b/src/part07.rs
@@ -35,8 +35,8 @@ pub fn vec_min<T: Minimum>(v: &Vec<T>) -> Option<&T> {
 //@ much safer to use.
 
 // **Exercise 07.1**: For our `vec_min` to be usable with `BigInt`, you will have to provide an
 //@ much safer to use.
 
 // **Exercise 07.1**: For our `vec_min` to be usable with `BigInt`, you will have to provide an

-// **implementation of `Minimum`. You should be able to pretty much copy the code you wrote for
-// **exercise 06.1. You should *not* make any copies of `BigInt`!
+// implementation of `Minimum`. You should be able to pretty much copy the code you wrote for
+// exercise 06.1. You should *not* make any copies of `BigInt`!

 impl Minimum for BigInt {
     fn min<'a>(&'a self, other: &'a Self) -> &'a Self {
         unimplemented!()
 impl Minimum for BigInt {
     fn min<'a>(&'a self, other: &'a Self) -> &'a Self {
         unimplemented!()


@@ -44,7 +44,6 @@ impl Minimum for BigInt {
 }
 
 // ## Operator Overloading
 }
 
 // ## Operator Overloading

-

 //@ How can we know that our `min` function actually does what we want it to do? One possibility
 //@ here is to do *testing*. Rust comes with nice built-in support for both unit tests and
 //@ integration tests. However, before we go there, we need to have a way of checking whether the
 //@ How can we know that our `min` function actually does what we want it to do? One possibility
 //@ here is to do *testing*. Rust comes with nice built-in support for both unit tests and
 //@ integration tests. However, before we go there, we need to have a way of checking whether the


@@ -73,7 +72,6 @@ impl PartialEq for BigInt {
 
 // Now we can compare `BigInt`s. Rust treats `PartialEq` special in that it is wired to the operator
 // `==`:
 
 // Now we can compare `BigInt`s. Rust treats `PartialEq` special in that it is wired to the operator
 // `==`:

-

 //@ That operator can now be used on our numbers! Speaking in C++ terms, we just overloaded the
 //@ `==` operator for `BigInt`. Rust does not have function overloading (i.e., it will not dispatch
 //@ to different functions depending on the type of the argument). Instead, one typically finds (or
 //@ That operator can now be used on our numbers! Speaking in C++ terms, we just overloaded the
 //@ `==` operator for `BigInt`. Rust does not have function overloading (i.e., it will not dispatch
 //@ to different functions depending on the type of the argument). Instead, one typically finds (or


@@ -155,7 +153,6 @@ fn test_vec_min() {
 // **Exercise 07.1**: Add some more testcases. In particular, make sure you test the behavior of
 // `vec_min` on an empty vector. Also add tests for `BigInt::from_vec` (in particular, removing
 // trailing zeros). Finally, break one of your functions in a subtle way and watch the test fail.
 // **Exercise 07.1**: Add some more testcases. In particular, make sure you test the behavior of
 // `vec_min` on an empty vector. Also add tests for `BigInt::from_vec` (in particular, removing
 // trailing zeros). Finally, break one of your functions in a subtle way and watch the test fail.

-// 

 
 // **Exercise 07.2**: Go back to your good ol' `SomethingOrNothing`, and implement `Display` for it.
 // (This will, of course, need a `Display` bound on `T`.) Then you should be able to use them with
 
 // **Exercise 07.2**: Go back to your good ol' `SomethingOrNothing`, and implement `Display` for it.
 // (This will, of course, need a `Display` bound on `T`.) Then you should be able to use them with