Updated naming again

2.Primitives/3ArraysAndSlices.rs

@@ -0,0 +1,39 @@
+use std::mem;
+
+// This function borrows a slice
+fn analyze_slice(slice: &[i32]){
+	println!("first element of the slice: {}", slice[0]);
+	println!("the slice has {} elements", slice.len());
+}
+
+fn main(){
+	//Fixed-size array (type signature is superfluous)
+	let xs: [i32; 5] = [1, 2, 3, 4, 5];
+
+	//All elements can be initialized to the same value
+	let ys: [i32; 500] = [0; 500];
+
+	//Indexing starts at 0
+	println!("first element of the array: {}", xs[0]);
+	println!("second element of the array: {}", xs[1]);
+
+	//`len` returns the size of the array
+	println!("array size: {}", xs.len());
+
+	//Arrays are stack allocated
+	println!("array occupies {} bytes", mem::size_of_val(&xs));
+
+	//Arrays can be automatically borrowed as slices
+	println!("borrow the whole array as a slice");
+	analyze_slice(&xs);
+
+	//Slices can point to a section of an array
+	//They are of the form [starting_index..ending_index]
+	//starting_index is the first position in the slice
+	//ending_index is one more than the last position in the slice
+	println!("borrow a section of the array as a slice");
+	analyze_slice(&ys[1 .. 4]);
+
+	//Out of bound indexing causes compile error
+	//println!("{}", xs[5]);
+}