commit b27fd7a344de49cea91fb86b43ec5135bf8d1c28
author Ben Olmstead <bolms@google.com> Mon Aug 29 20:00:21 2022 +0000
committer Ben Olmstead <bolms@google.com> Mon Aug 29 20:00:21 2022 +0000
tree 8a65aa3eec404c89f9e57f08c55905c37bf37cc4
parent a761f62bc02cb2ba00b576bd5e3f37aecce85b29

Fix uninitialized memory in test code.

The `CanWriteExplicitlySizedEnumSizes` test can fail on some
compilers/configurations due to `buffer` being uninitialized.

compiler/back_end/cpp/testcode/uint_sizes_test.cc

diff --git a/compiler/back_end/cpp/testcode/uint_sizes_test.cc b/compiler/back_end/cpp/testcode/uint_sizes_test.cc
index 3b0cab4..cf8a7dd 100644
--- a/compiler/back_end/cpp/testcode/uint_sizes_test.cc
+++ b/compiler/back_end/cpp/testcode/uint_sizes_test.cc
@@ -360,7 +360,7 @@
 }
 
 TEST(SizesWriter, CanWriteExplicitlySizedEnumSizes) {
-  ::std::uint8_t buffer[sizeof kExplicitlySizedEnumSizes];
+  ::std::uint8_t buffer[sizeof kExplicitlySizedEnumSizes] = {0};
   auto writer = ExplicitlySizedEnumSizesWriter(buffer, sizeof buffer);
   writer.one_byte().Write(ExplicitlySizedEnum::VALUE1);
   writer.two_byte().Write(ExplicitlySizedEnum::VALUE10);