From: Keith Randall <khr@golang.org>
Date: Tue, 3 Dec 2013 01:58:19 +0000 (-0800)
Subject: reflect: test to make sure big Zero()-obtained objects are really zero.
X-Git-Tag: go1.3beta1~1321
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=742f755a29493b111d54a0d39d80083994dcaf1a;p=gostls13.git

reflect: test to make sure big Zero()-obtained objects are really zero.

Update #6876.

R=dave, bradfitz
CC=golang-dev
https://golang.org/cl/36370043
---

diff --git a/src/pkg/reflect/all_test.go b/src/pkg/reflect/all_test.go
index 17d078753c..df64e3bb7b 100644
--- a/src/pkg/reflect/all_test.go
+++ b/src/pkg/reflect/all_test.go
@@ -3640,3 +3640,14 @@ func TestReflectMethodTraceback(t *testing.T) {
 		t.Errorf("Call returned %d; want 8", i)
 	}
 }
+
+func TestBigZero(t *testing.T) {
+	const size = 1 << 10
+	var v [size]byte
+	z := Zero(ValueOf(v).Type()).Interface().([size]byte)
+	for i := 0; i < size; i++ {
+		if z[i] != 0 {
+			t.Fatalf("Zero object not all zero, index %d", i)
+		}
+	}
+}