write out iterators exercise directions and prior knowledge

Author: miguelraz

exercise-templates/Cargo.toml

@@ -5,4 +5,5 @@ members = [
   "rustlatin/*",
   "tcp-echo-server",
   "async-chat/*",
+  "iterators",
 ]

exercise-templates/iterators/Cargo.toml

@@ -3,4 +3,8 @@ name = "iterators"
 version = "0.1.0"
 edition = "2021"
 
+[[bin]]
+name = "iter1"
+path = "src/bin/iter1.rs"
+
 [dependencies]

exercise-templates/iterators/src/lib.rs exercise-templates/iterators/src/bin/iter1.rs

@@ -3,10 +3,9 @@ use std::io::BufReader;
 use std::fs::File;
 use std::error::Error;
 
-#[test]
-fn iterator_test() -> Result<(), Box<dyn Error>> {
+fn main() -> Result<(), Box<dyn Error>> {
     use crate::*;
-    let f = File::open("numbers.txt")?;
+    let f = File::open("../exercise-templates/iterators/numbers.txt")?;
     let mut reader = BufReader::new(f);
 
     // Write your iterator chain here