From 0b588e7490eac4ef37b59c9265f1f3f05f4bb27c Mon Sep 17 00:00:00 2001
From: Brian Silverman <brian@peloton-tech.com>
Date: Tue, 31 Jul 2018 15:53:47 -0700
Subject: [PATCH 05/39] Fix uninitialized memory use in sampler_test

Sampler's documentation states the following:
  C++03 requires that types stored in TLS be POD.  As a result, you must
  initialize these members to {0, 0, false} before using this class!

However, the test code wasn't doing that. MemorySanitizer and
UndefinedBehaviorSanitizer both failed because of it.
---
 src/tests/sampler_test.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/tests/sampler_test.cc b/src/tests/sampler_test.cc
index e0d24d4..9a55b70 100755
--- a/src/tests/sampler_test.cc
+++ b/src/tests/sampler_test.cc
@@ -361,7 +361,7 @@ double StandardDeviationsErrorInSample(
 }
 
 TEST(Sampler, LargeAndSmallAllocs_CombinedTest) {
-  tcmalloc::Sampler sampler;
+  tcmalloc::Sampler sampler{0, 0, false};
   sampler.Init(1);
   int counter_big = 0;
   int counter_small = 0;
-- 
1.8.3.1

