split part 11 into two, and explain interior mutability and Cell and RefCell in the...

[rust-101.git] / workspace / src / part01.rs

diff --git a/workspace/src/part01.rs b/workspace/src/part01.rs
index 1b2460c9783c94d9a248710ec2a3aa4a5b0ca93e..ed6717ca3b8111f7b61afc56f0b863c6f3fffc73 100644 (file)
--- a/workspace/src/part01.rs
+++ b/workspace/src/part01.rs
@@ -24,6 +24,12 @@ fn number_or_default(n: NumberOrNothing, default: i32) -> i32 {
     }
 }
 
     }
 }
 

+// It is even the case that blocks are expressions, evaluating to the last expression they contain.
+fn compute_stuff(x: i32) -> i32 {
+    let y = { let z = x*x; z + 14 };
+    y*y
+}
+

 // Let us now refactor `vec_min`.
 fn vec_min(v: Vec<i32>) -> NumberOrNothing {
     fn min_i32(a: i32, b: i32) -> i32 {
 // Let us now refactor `vec_min`.
 fn vec_min(v: Vec<i32>) -> NumberOrNothing {
     fn min_i32(a: i32, b: i32) -> i32 {