Update protobuf's gtest to expected version.

Generated by running:

rm -rf gtest
./autogen.sh
./configure

Change-Id: I5d9c0bea09dd9d3e4d7d4442dd8222011f5c522a

11 files changed, 65 insertions, 62 deletions

diff --git a/gtest/samples/prime_tables.h b/gtest/samples/prime_tables.h
index 236e84c..92ce16a 100644
--- a/gtest/samples/prime_tables.h
+++ b/gtest/samples/prime_tables.h
@@ -115,6 +115,9 @@ class PreCalculatedPrimeTable : public PrimeTable {
 
   const int is_prime_size_;
   bool* const is_prime_;
+
+  // Disables compiler warning "assignment operator could not be generated."
+  void operator=(const PreCalculatedPrimeTable& rhs);
 };
 
 #endif  // GTEST_SAMPLES_PRIME_TABLES_H_
diff --git a/gtest/samples/sample10_unittest.cc b/gtest/samples/sample10_unittest.cc
index 703ec6e..3ad6fd6 100644
--- a/gtest/samples/sample10_unittest.cc
+++ b/gtest/samples/sample10_unittest.cc
@@ -58,7 +58,7 @@ class Water {
     return malloc(allocation_size);
   }
 
-  void operator delete(void* block, size_t allocation_size) {
+  void operator delete(void* block, size_t /* allocation_size */) {
     allocated_--;
     free(block);
   }
@@ -78,12 +78,12 @@ int Water::allocated_ = 0;
 class LeakChecker : public EmptyTestEventListener {
  private:
   // Called before a test starts.
-  virtual void OnTestStart(const TestInfo& test_info) {
+  virtual void OnTestStart(const TestInfo& /* test_info */) {
     initially_allocated_ = Water::allocated();
   }
 
   // Called after a test ends.
-  virtual void OnTestEnd(const TestInfo& test_info) {
+  virtual void OnTestEnd(const TestInfo& /* test_info */) {
     int difference = Water::allocated() - initially_allocated_;
 
     // You can generate a failure in any event handler except
diff --git a/gtest/samples/sample2.cc b/gtest/samples/sample2.cc
index 53857c0..5f763b9 100644
--- a/gtest/samples/sample2.cc
+++ b/gtest/samples/sample2.cc
@@ -36,21 +36,21 @@
 #include <string.h>
 
 // Clones a 0-terminated C string, allocating memory using new.
-const char * MyString::CloneCString(const char * c_string) {
-  if (c_string == NULL) return NULL;
+const char* MyString::CloneCString(const char* a_c_string) {
+  if (a_c_string == NULL) return NULL;
 
-  const size_t len = strlen(c_string);
-  char * const clone = new char[ len + 1 ];
-  memcpy(clone, c_string, len + 1);
+  const size_t len = strlen(a_c_string);
+  char* const clone = new char[ len + 1 ];
+  memcpy(clone, a_c_string, len + 1);
 
   return clone;
 }
 
 // Sets the 0-terminated C string this MyString object
 // represents.
-void MyString::Set(const char * c_string) {
+void MyString::Set(const char* a_c_string) {
   // Makes sure this works when c_string == c_string_
-  const char * const temp = MyString::CloneCString(c_string);
+  const char* const temp = MyString::CloneCString(a_c_string);
   delete[] c_string_;
   c_string_ = temp;
 }
diff --git a/gtest/samples/sample2.h b/gtest/samples/sample2.h
index c5f3b8c..5b57e60 100644
--- a/gtest/samples/sample2.h
+++ b/gtest/samples/sample2.h
@@ -40,13 +40,13 @@
 // A simple string class.
 class MyString {
  private:
-  const char * c_string_;
+  const char* c_string_;
   const MyString& operator=(const MyString& rhs);
 
  public:
 
   // Clones a 0-terminated C string, allocating memory using new.
-  static const char * CloneCString(const char * c_string);
+  static const char* CloneCString(const char* a_c_string);
 
   ////////////////////////////////////////////////////////////
   //
@@ -56,8 +56,8 @@ class MyString {
   MyString() : c_string_(NULL) {}
 
   // Constructs a MyString by cloning a 0-terminated C string.
-  explicit MyString(const char * c_string) : c_string_(NULL) {
-    Set(c_string);
+  explicit MyString(const char* a_c_string) : c_string_(NULL) {
+    Set(a_c_string);
   }
 
   // Copy c'tor
@@ -72,14 +72,14 @@ class MyString {
   ~MyString() { delete[] c_string_; }
 
   // Gets the 0-terminated C string this MyString object represents.
-  const char * c_string() const { return c_string_; }
+  const char* c_string() const { return c_string_; }
 
   size_t Length() const {
     return c_string_ == NULL ? 0 : strlen(c_string_);
   }
 
   // Sets the 0-terminated C string this MyString object represents.
-  void Set(const char * c_string);
+  void Set(const char* c_string);
 };
 
 
diff --git a/gtest/samples/sample2_unittest.cc b/gtest/samples/sample2_unittest.cc
index e1d7910..32232d9 100644
--- a/gtest/samples/sample2_unittest.cc
+++ b/gtest/samples/sample2_unittest.cc
@@ -71,7 +71,7 @@ TEST(MyString, DefaultConstructor) {
   // </TechnicalDetails>
   EXPECT_STREQ(NULL, s.c_string());
 
-  EXPECT_EQ(0, s.Length());
+  EXPECT_EQ(0u, s.Length());
 }
 
 const char kHelloString[] = "Hello, world!";
diff --git a/gtest/samples/sample3-inl.h b/gtest/samples/sample3-inl.h
index 630e950..46369a0 100644
--- a/gtest/samples/sample3-inl.h
+++ b/gtest/samples/sample3-inl.h
@@ -51,23 +51,23 @@ class QueueNode {
 
  public:
   // Gets the element in this node.
-  const E & element() const { return element_; }
+  const E& element() const { return element_; }
 
   // Gets the next node in the queue.
-  QueueNode * next() { return next_; }
-  const QueueNode * next() const { return next_; }
+  QueueNode* next() { return next_; }
+  const QueueNode* next() const { return next_; }
 
  private:
   // Creates a node with a given element value.  The next pointer is
   // set to NULL.
-  QueueNode(const E & element) : element_(element), next_(NULL) {}
+  QueueNode(const E& an_element) : element_(an_element), next_(NULL) {}
 
   // We disable the default assignment operator and copy c'tor.
-  const QueueNode & operator = (const QueueNode &);
-  QueueNode(const QueueNode &);
+  const QueueNode& operator = (const QueueNode&);
+  QueueNode(const QueueNode&);
 
   E element_;
-  QueueNode * next_;
+  QueueNode* next_;
 };
 
 template <typename E>  // E is the element type.
@@ -84,8 +84,8 @@ public:
   void Clear() {
     if (size_ > 0) {
       // 1. Deletes every node.
-      QueueNode<E> * node = head_;
-      QueueNode<E> * next = node->next();
+      QueueNode<E>* node = head_;
+      QueueNode<E>* next = node->next();
       for (; ;) {
         delete node;
         node = next;
@@ -103,19 +103,19 @@ public:
   size_t Size() const { return size_; }
 
   // Gets the first element of the queue, or NULL if the queue is empty.
-  QueueNode<E> * Head() { return head_; }
-  const QueueNode<E> * Head() const { return head_; }
+  QueueNode<E>* Head() { return head_; }
+  const QueueNode<E>* Head() const { return head_; }
 
   // Gets the last element of the queue, or NULL if the queue is empty.
-  QueueNode<E> * Last() { return last_; }
-  const QueueNode<E> * Last() const { return last_; }
+  QueueNode<E>* Last() { return last_; }
+  const QueueNode<E>* Last() const { return last_; }
 
   // Adds an element to the end of the queue.  A copy of the element is
   // created using the copy constructor, and then stored in the queue.
   // Changes made to the element in the queue doesn't affect the source
   // object, and vice versa.
-  void Enqueue(const E & element) {
-    QueueNode<E> * new_node = new QueueNode<E>(element);
+  void Enqueue(const E& element) {
+    QueueNode<E>* new_node = new QueueNode<E>(element);
 
     if (size_ == 0) {
       head_ = last_ = new_node;
@@ -129,19 +129,19 @@ public:
 
   // Removes the head of the queue and returns it.  Returns NULL if
   // the queue is empty.
-  E * Dequeue() {
+  E* Dequeue() {
     if (size_ == 0) {
       return NULL;
     }
 
-    const QueueNode<E> * const old_head = head_;
+    const QueueNode<E>* const old_head = head_;
     head_ = head_->next_;
     size_--;
     if (size_ == 0) {
       last_ = NULL;
     }
 
-    E * element = new E(old_head->element());
+    E* element = new E(old_head->element());
     delete old_head;
 
     return element;
@@ -151,9 +151,9 @@ public:
   // returns the result in a new queue.  The original queue is not
   // affected.
   template <typename F>
-  Queue * Map(F function) const {
-    Queue * new_queue = new Queue();
-    for (const QueueNode<E> * node = head_; node != NULL; node = node->next_) {
+  Queue* Map(F function) const {
+    Queue* new_queue = new Queue();
+    for (const QueueNode<E>* node = head_; node != NULL; node = node->next_) {
       new_queue->Enqueue(function(node->element()));
     }
 
@@ -161,13 +161,13 @@ public:
   }
 
  private:
-  QueueNode<E> * head_;  // The first node of the queue.
-  QueueNode<E> * last_;  // The last node of the queue.
+  QueueNode<E>* head_;  // The first node of the queue.
+  QueueNode<E>* last_;  // The last node of the queue.
   size_t size_;  // The number of elements in the queue.
 
   // We disallow copying a queue.
-  Queue(const Queue &);
-  const Queue & operator = (const Queue &);
+  Queue(const Queue&);
+  const Queue& operator = (const Queue&);
  };
 
 #endif  // GTEST_SAMPLES_SAMPLE3_INL_H_
diff --git a/gtest/samples/sample3_unittest.cc b/gtest/samples/sample3_unittest.cc
index a3d26da..34c1ca8 100644
--- a/gtest/samples/sample3_unittest.cc
+++ b/gtest/samples/sample3_unittest.cc
@@ -122,7 +122,7 @@ class QueueTest : public testing::Test {
 // Tests the default c'tor.
 TEST_F(QueueTest, DefaultConstructor) {
   // You can access data in the test fixture here.
-  EXPECT_EQ(0, q0_.Size());
+  EXPECT_EQ(0u, q0_.Size());
 }
 
 // Tests Dequeue().
@@ -133,13 +133,13 @@ TEST_F(QueueTest, Dequeue) {
   n = q1_.Dequeue();
   ASSERT_TRUE(n != NULL);
   EXPECT_EQ(1, *n);
-  EXPECT_EQ(0, q1_.Size());
+  EXPECT_EQ(0u, q1_.Size());
   delete n;
 
   n = q2_.Dequeue();
   ASSERT_TRUE(n != NULL);
   EXPECT_EQ(2, *n);
-  EXPECT_EQ(1, q2_.Size());
+  EXPECT_EQ(1u, q2_.Size());
   delete n;
 }
 
diff --git a/gtest/samples/sample5_unittest.cc b/gtest/samples/sample5_unittest.cc
index be5df90..49dae7c 100644
--- a/gtest/samples/sample5_unittest.cc
+++ b/gtest/samples/sample5_unittest.cc
@@ -171,24 +171,24 @@ class QueueTest : public QuickTest {
 
 // Tests the default constructor.
 TEST_F(QueueTest, DefaultConstructor) {
-  EXPECT_EQ(0, q0_.Size());
+  EXPECT_EQ(0u, q0_.Size());
 }
 
 // Tests Dequeue().
 TEST_F(QueueTest, Dequeue) {
-  int * n = q0_.Dequeue();
+  int* n = q0_.Dequeue();
   EXPECT_TRUE(n == NULL);
 
   n = q1_.Dequeue();
   EXPECT_TRUE(n != NULL);
   EXPECT_EQ(1, *n);
-  EXPECT_EQ(0, q1_.Size());
+  EXPECT_EQ(0u, q1_.Size());
   delete n;
 
   n = q2_.Dequeue();
   EXPECT_TRUE(n != NULL);
   EXPECT_EQ(2, *n);
-  EXPECT_EQ(1, q2_.Size());
+  EXPECT_EQ(1u, q2_.Size());
   delete n;
 }
 
diff --git a/gtest/samples/sample7_unittest.cc b/gtest/samples/sample7_unittest.cc
index b5d507a..f455282 100644
--- a/gtest/samples/sample7_unittest.cc
+++ b/gtest/samples/sample7_unittest.cc
@@ -121,12 +121,12 @@ INSTANTIATE_TEST_CASE_P(
 
 #else
 
-// Google Test doesn't support value-parameterized tests on some platforms
-// and compilers, such as MSVC 7.1. If we use conditional compilation to
-// compile out all code referring to the gtest_main library, MSVC linker
-// will not link that library at all and consequently complain about
-// missing entry point defined in that library (fatal error LNK1561:
-// entry point must be defined). This dummy test keeps gtest_main linked in.
+// Google Test may not support value-parameterized tests with some
+// compilers. If we use conditional compilation to compile out all
+// code referring to the gtest_main library, MSVC linker will not link
+// that library at all and consequently complain about missing entry
+// point defined in that library (fatal error LNK1561: entry point
+// must be defined). This dummy test keeps gtest_main linked in.
 TEST(DummyTest, ValueParameterizedTestsAreNotSupportedOnThisPlatform) {}
 
 #endif  // GTEST_HAS_PARAM_TEST
diff --git a/gtest/samples/sample8_unittest.cc b/gtest/samples/sample8_unittest.cc
index d76136a..ccf61d9 100644
--- a/gtest/samples/sample8_unittest.cc
+++ b/gtest/samples/sample8_unittest.cc
@@ -162,12 +162,12 @@ INSTANTIATE_TEST_CASE_P(MeaningfulTestParameters,
 
 #else
 
-// Google Test doesn't support Combine() on some platforms and compilers,
-// such as MSVC 7.1. If we use conditional compilation to compile out
-// all code referring to the gtest_main library, MSVC linker will not
-// link that library at all and consequently complain about missing entry
-// point defined in that library (fatal error LNK1561: entry point must
-// be defined). This dummy test keeps gtest_main linked in.
+// Google Test may not support Combine() with some compilers. If we
+// use conditional compilation to compile out all code referring to
+// the gtest_main library, MSVC linker will not link that library at
+// all and consequently complain about missing entry point defined in
+// that library (fatal error LNK1561: entry point must be
+// defined). This dummy test keeps gtest_main linked in.
 TEST(DummyTest, CombineIsNotSupportedOnThisPlatform) {}
 
 #endif  // GTEST_HAS_COMBINE
diff --git a/gtest/samples/sample9_unittest.cc b/gtest/samples/sample9_unittest.cc
index 8944c47..d828ef4 100644
--- a/gtest/samples/sample9_unittest.cc
+++ b/gtest/samples/sample9_unittest.cc
@@ -52,7 +52,7 @@ namespace {
 class TersePrinter : public EmptyTestEventListener {
  private:
   // Called before any test activity starts.
-  virtual void OnTestProgramStart(const UnitTest& unit_test) {}
+  virtual void OnTestProgramStart(const UnitTest& /* unit_test */) {}
 
   // Called after all test activities have ended.
   virtual void OnTestProgramEnd(const UnitTest& unit_test) {