examples: fibonacci

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)
+	}
+}