From 22e7e807f36e8a7d008d7d3748feaac658b10fb3 Mon Sep 17 00:00:00 2001
From: Cc <47389402+Cc618@users.noreply.github.com>
Date: Thu, 17 Oct 2019 10:11:24 +0200
Subject: [PATCH] examples: fibonacci

---
 examples/fibonacci.v | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 examples/fibonacci.v

diff --git a/examples/fibonacci.v b/examples/fibonacci.v
new file mode 100644
index 0000000000..d894efd8f6
--- /dev/null
+++ b/examples/fibonacci.v
@@ -0,0 +1,32 @@
+// This program displays the fibonacci sequence
+
+import os
+
+fn main() {
+	// Check for user input
+	if os.args.len != 2 {
+		println('usage: fibonacci [rank]')
+
+		// Exit
+		return
+	}
+	
+	// Parse first argument and cast it to int
+	stop := os.args[1].int()
+
+	// Three consecutive terms of the sequence
+	mut a := 0
+	mut b := 0
+	mut c := 1
+
+	for i := 0; i < stop; i++ {
+		// Set a and b to the next term
+		a = b
+		b = c
+		// Compute the new term
+		c = a + b
+
+		// Print the new term
+		println(c)
+	}
+}