ch2: add ch2-needle-in-haystack.rs example

cclauss · Jun 30, 2022 · aff3c02 · aff3c02
1 parent eb41d1f
commit aff3c02
Showing 1 changed file with 15 additions and 0 deletions.
diff --git a/ch2/ch2-needle-in-haystack.rs b/ch2/ch2-needle-in-haystack.rs
@@ -0,0 +1,15 @@
+fn main() {
+  let needle = 42;
+  let haystack = [1, 1, 2, 5, 14, 42, 132, 429, 1430, 4862]; // <1>
+
+  for reference in haystack.iter() { // <2>
+    let item = *reference; // <3>
+    if item == needle {
+      println!("{}", item);
+    }
+
+    // if reference == &needle { // <4>
+    //   println!("{}", reference);
+    // }
+  }
+}