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-rw-r--r--src/doc/book/listings/ch03-common-programming-concepts/listing-03-01/Cargo.lock6
-rw-r--r--src/doc/book/listings/ch03-common-programming-concepts/listing-03-01/Cargo.toml6
-rw-r--r--src/doc/book/listings/ch03-common-programming-concepts/listing-03-01/src/main.rs3
3 files changed, 15 insertions, 0 deletions
diff --git a/src/doc/book/listings/ch03-common-programming-concepts/listing-03-01/Cargo.lock b/src/doc/book/listings/ch03-common-programming-concepts/listing-03-01/Cargo.lock
new file mode 100644
index 000000000..88287d136
--- /dev/null
+++ b/src/doc/book/listings/ch03-common-programming-concepts/listing-03-01/Cargo.lock
@@ -0,0 +1,6 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+[[package]]
+name = "functions"
+version = "0.1.0"
+
diff --git a/src/doc/book/listings/ch03-common-programming-concepts/listing-03-01/Cargo.toml b/src/doc/book/listings/ch03-common-programming-concepts/listing-03-01/Cargo.toml
new file mode 100644
index 000000000..478b346fd
--- /dev/null
+++ b/src/doc/book/listings/ch03-common-programming-concepts/listing-03-01/Cargo.toml
@@ -0,0 +1,6 @@
+[package]
+name = "functions"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
diff --git a/src/doc/book/listings/ch03-common-programming-concepts/listing-03-01/src/main.rs b/src/doc/book/listings/ch03-common-programming-concepts/listing-03-01/src/main.rs
new file mode 100644
index 000000000..b492d384f
--- /dev/null
+++ b/src/doc/book/listings/ch03-common-programming-concepts/listing-03-01/src/main.rs
@@ -0,0 +1,3 @@
+fn main() {
+ let y = 6;
+}