Update recursive Fibonacci example and add a Makefile rule to benchmark different languages

Author: mertyildiran

Makefile

@@ -216,5 +216,12 @@ rosetta-update:
 benchmark:
 	./benchmark.sh
 
+bench-langs:
+	hyperfine --warmup 3 \
+		'chaos dev.kaos' \
+		'python3 dev.py' \
+		'ruby dev.rb' \
+		'php dev.php'
+
 profile:
 	./profile.sh

tests/rosetta/fibonacci.kaos

@@ -3,28 +3,17 @@
 
 // Recursion
 
-num def fibo_error()
-    print "Incorrect input"
-    num r = 0
-    return r
-end
-
 num def sum(num j)
-    num x = fibo1(j - 1)
-    num y = fibo1(j - 2)
+    num x = fibo(j - 1)
+    num y = fibo(j - 2)
     num z = x + y
     return z
 end
 
 num def fibo1(num n)
-    num zero = 0
-    num one = 1
-    num c = n
 end {
-    n < 0   : fibo_error(),
-    n == 0  : return zero,
-    n == 1  : return one,
-    default : sum(c)
+    n < 3   : return 1,
+    default : sum(n)
 }
 
 print fibo1(-1) // Incorrect input

tests/rosetta/fibonacci_perf.kaos

@@ -1,9 +1,3 @@
-num def fibo_error()
-    print "Incorrect input"
-    num r = 0
-    return r
-end
-
 num def sum(num j)
     num x = fibo(j - 1)
     num y = fibo(j - 2)
@@ -12,15 +6,10 @@ num def sum(num j)
 end
 
 num def fibo(num n)
-    num zero = 0
-    num one = 1
-    num c = n
 end {
-    n < 0   : fibo_error(),
-    n == 0  : return zero,
-    n == 1  : return one,
-    default : sum(c)
+    n < 3   : return 1,
+    default : sum(n)
 }
 
 
-print fibo(28)
+print fibo(40)