3 files changed, 3 insertions, 4 deletions
diff --git a/googletest/samples/prime_tables.h b/googletest/samples/prime_tables.h
index 7c0286e..08ad949 100644
--- a/googletest/samples/prime_tables.h
+++ b/googletest/samples/prime_tables.h
@@ -78,8 +78,9 @@ class PreCalculatedPrimeTable : public PrimeTable {
  public:
   // 'max' specifies the maximum number the prime table holds.
   explicit PreCalculatedPrimeTable(int max)
-      : is_prime_size_(max + 1), is_prime_(new bool[max + 1]) {
-    CalculatePrimesUpTo(max);
+      : is_prime_size_(std::max(1, max + 1)),
+        is_prime_(new bool[static_cast<size_t>(is_prime_size_)]) {
+    CalculatePrimesUpTo(is_prime_size_ - 1);
   }
   ~PreCalculatedPrimeTable() override { delete[] is_prime_; }
 
diff --git a/googletest/samples/sample10_unittest.cc b/googletest/samples/sample10_unittest.cc
index 95b4811..2107954 100644
--- a/googletest/samples/sample10_unittest.cc
+++ b/googletest/samples/sample10_unittest.cc
@@ -38,7 +38,6 @@ using ::testing::InitGoogleTest;
 using ::testing::Test;
 using ::testing::TestEventListeners;
 using ::testing::TestInfo;
-using ::testing::TestPartResult;
 using ::testing::UnitTest;
 
 namespace {
diff --git a/googletest/samples/sample9_unittest.cc b/googletest/samples/sample9_unittest.cc
index d627ea7..0a2f097 100644
--- a/googletest/samples/sample9_unittest.cc
+++ b/googletest/samples/sample9_unittest.cc
@@ -40,7 +40,6 @@ using ::testing::Test;
 using ::testing::TestEventListeners;
 using ::testing::TestInfo;
 using ::testing::TestPartResult;
-using ::testing::TestSuite;
 using ::testing::UnitTest;
 namespace {
 // Provides alternative output mode which produces minimal amount of