1 files changed, 20 insertions, 0 deletions
diff --git a/doc/progs/sum.go b/doc/progs/sum.go
new file mode 100644
index 000000000..e022195ed
--- /dev/null
+++ b/doc/progs/sum.go
@@ -0,0 +1,20 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package main
+
+import "fmt"
+
+func sum(a []int) int { // returns an int
+	s := 0
+	for i := 0; i < len(a); i++ {
+		s += a[i]
+	}
+	return s
+}
+
+func main() {
+	s := sum([3]int{1, 2, 3}[:]) // a slice of the array is passed to sum
+	fmt.Print(s, "\n")
+}