Move rust playground here

Signed-off-by: Carlos Maiolino <[email protected]>

1 files changed, 26 insertions, 0 deletions

diff --git a/rust/chap4/slice_me.rs b/rust/chap4/slice_me.rs
new file mode 100644
index 0000000..da201a1
--- /dev/null
+++ b/rust/chap4/slice_me.rs
@@ -0,0 +1,26 @@
+
+/* Return the index of the first space or s.len()*/
+fn get_word_index(s: &str) -> usize {
+    let bytes = s.as_bytes();
+
+    for (i, &item) in bytes.iter().enumerate() {
+        if item == b' ' {
+            return i;
+        }
+    }
+
+    return s.len();
+}
+
+fn first_word(s: &str) -> &str {
+    let idx = get_word_index(s);
+
+    return &s[..idx];
+}
+
+fn main() {
+    let s = String::from("corno manso ronaldo curintiano");
+    let slice = first_word(&s);
+
+    println!("{slice}");
+}