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-rwxr-xr-xmeap/meap-code/ch3/ch3-newtype-pattern.rs10
1 files changed, 10 insertions, 0 deletions
diff --git a/meap/meap-code/ch3/ch3-newtype-pattern.rs b/meap/meap-code/ch3/ch3-newtype-pattern.rs
new file mode 100755
index 0000000..9647b27
--- /dev/null
+++ b/meap/meap-code/ch3/ch3-newtype-pattern.rs
@@ -0,0 +1,10 @@
+#[derive(PartialEq)] // <1>
+struct Hostname(String); // <2>
+
+fn main() {
+ let ordinary_string = String::from("localhost");
+ let host = Hostname ( ordinary_string.clone() );
+ if host == ordinary_string { // <3>
+ println!("huh?");
+ };
+} \ No newline at end of file