add sections about types and constants

R=gri
DELTA=133  (124 added, 0 deleted, 9 changed)
OCL=15122
CL=15143

1 files changed, 19 insertions, 0 deletions

diff --git a/doc/progs/sum.go b/doc/progs/sum.go
new file mode 100644
index 000000000..c8e7b10a7
--- /dev/null
+++ b/doc/progs/sum.go
@@ -0,0 +1,19 @@
+// 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
+
+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(&[]int{1,2,3});  // pass address of int array
+	print(s, "\n");
+}