From d9a560c89de9902d080f99d773610d5f4a362166 Mon Sep 17 00:00:00 2001
From: lee <lee-dasilva@hotmail.com>
Date: Tue, 9 Feb 2021 09:02:44 +0000
Subject: [PATCH] adding usage to string_literal

---
 subjects/string_literal/README.md | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/subjects/string_literal/README.md b/subjects/string_literal/README.md
index 9c0bac96..a251b7a1 100644
--- a/subjects/string_literal/README.md
+++ b/subjects/string_literal/README.md
@@ -42,12 +42,23 @@ fn find(v: &str, pat: char) -> usize {
 Here is a program to test your function
 
 ```rust
-
+fn main() {
+    println!("{}", is_empty(""));
+    println!("{}", is_ascii("rust"));
+    println!("{}", contains("rust", "ru"));
+    println!("{:?}", split_at("rust", 2));
+    println!("{}", find("rust", 'u'));
+}
 ```
 
 And its output
 
 ```console
 student@ubuntu:~/[[ROOT]]/test$ cargo run
+true
+true
+true
+("ru", "st")
+1
 student@ubuntu:~/[[ROOT]]/test$
 ```