Make Google Mock build cleanly on Visual Studio 2010, 2012, 2013.

CMakeLists.txt

@@ -63,6 +63,16 @@ include_directories("${gmock_SOURCE_DIR}/include"
                     # Test sources.
                     "${gtest_SOURCE_DIR}")
 
+# Summary of tuple support for Microsoft Visual Studio:
+# Compiler    version(MS)  version(cmake)  Support
+# ----------  -----------  --------------  -----------------------------
+# <= VS 2010  <= 10        <= 1600         Use Google Tests's own tuple.
+# VS 2012     11           1700            std::tr1::tuple + _VARIADIC_MAX=10
+# VS 2013     12           1800            std::tr1::tuple
+if (MSVC AND MSVC_VERSION EQUAL 1700)
+  add_definitions(/D _VARIADIC_MAX=10)
+endif()
+
 ########################################################################
 #
 # Defines the gmock & gmock_main libraries.  User tests should link
@@ -134,8 +144,16 @@ if (gmock_build_tests)
   cxx_library(gmock_main_no_rtti "${cxx_no_rtti}"
     "${gtest_dir}/src/gtest-all.cc" src/gmock-all.cc src/gmock_main.cc)
 
-  cxx_library(gmock_main_use_own_tuple "${cxx_use_own_tuple}"
+  if (NOT MSVC OR MSVC_VERSION LESS 1600)  # 1600 is Visual Studio 2010.
-    "${gtest_dir}/src/gtest-all.cc" src/gmock-all.cc src/gmock_main.cc)
+    # Visual Studio 2010, 2012, and 2013 define symbols in std::tr1 that
+    # conflict with our own definitions. Therefore using our own tuple does not
+    # work on those compilers.
+    cxx_library(gmock_main_use_own_tuple "${cxx_use_own_tuple}"
+      "${gtest_dir}/src/gtest-all.cc" src/gmock-all.cc src/gmock_main.cc)
+
+    cxx_test_with_flags(gmock_use_own_tuple_test "${cxx_use_own_tuple}"
+      gmock_main_use_own_tuple test/gmock-spec-builders_test.cc)
+  endif()
 
   cxx_test_with_flags(gmock-more-actions_no_exception_test "${cxx_no_exception}"
     gmock_main_no_exception test/gmock-more-actions_test.cc)
@@ -143,9 +161,6 @@ if (gmock_build_tests)
   cxx_test_with_flags(gmock_no_rtti_test "${cxx_no_rtti}"
     gmock_main_no_rtti test/gmock-spec-builders_test.cc)
 
-  cxx_test_with_flags(gmock_use_own_tuple_test "${cxx_use_own_tuple}"
-    gmock_main_use_own_tuple test/gmock-spec-builders_test.cc)
-
   cxx_shared_library(shared_gmock_main "${cxx_default}"
     "${gtest_dir}/src/gtest-all.cc" src/gmock-all.cc src/gmock_main.cc)
 

include/gmock/gmock-more-actions.h

@@ -87,6 +87,20 @@ class InvokeMethodAction {
   GTEST_DISALLOW_ASSIGN_(InvokeMethodAction);
 };
 
+// An internal replacement for std::copy which mimics its behavior. This is
+// necessary because Visual Studio deprecates ::std::copy, issuing warning 4996.
+// However Visual Studio 2010 and later do not honor #pragmas which disable that
+// warning.
+template<typename InputIterator, typename OutputIterator>
+inline OutputIterator CopyElements(InputIterator first,
+                                   InputIterator last,
+                                   OutputIterator output) {
+  for (; first != last; ++first, ++output) {
+    *output = *first;
+  }
+  return output;
+}
+
 }  // namespace internal
 
 // Various overloads for Invoke().
@@ -185,15 +199,11 @@ ACTION_TEMPLATE(SetArgReferee,
 ACTION_TEMPLATE(SetArrayArgument,
                 HAS_1_TEMPLATE_PARAMS(int, k),
                 AND_2_VALUE_PARAMS(first, last)) {
-  // Microsoft compiler deprecates ::std::copy, so we want to suppress warning
+  // Visual Studio deprecates ::std::copy, so we use our own copy in that case.
-  // 4996 (Function call with parameters that may be unsafe) there.
 #ifdef _MSC_VER
-# pragma warning(push)          // Saves the current warning state.
+  internal::CopyElements(first, last, ::std::tr1::get<k>(args));
-# pragma warning(disable:4996)  // Temporarily disables warning 4996.
+#else
-#endif
   ::std::copy(first, last, ::std::tr1::get<k>(args));
-#ifdef _MSC_VER
-# pragma warning(pop)           // Restores the warning state.
 #endif
 }
 

test/gmock-generated-function-mockers_test.cc

@@ -112,6 +112,14 @@ class FooInterface {
 #endif  // GTEST_OS_WINDOWS
 };
 
+// Const qualifiers on arguments were once (incorrectly) considered
+// significant in determining whether two virtual functions had the same
+// signature. This was fixed in Visual Studio 2008. However, the compiler
+// still emits a warning that alerts about this change in behavior.
+#ifdef _MSC_VER
+# pragma warning(push)
+# pragma warning(disable : 4373)
+#endif
 class MockFoo : public FooInterface {
  public:
   MockFoo() {}
@@ -167,6 +175,9 @@ class MockFoo : public FooInterface {
  private:
   GTEST_DISALLOW_COPY_AND_ASSIGN_(MockFoo);
 };
+#ifdef _MSC_VER
+# pragma warning(pop)
+#endif
 
 class FunctionMockerTest : public testing::Test {
  protected:

test/gmock-more-actions_test.cc

@@ -668,17 +668,17 @@ TEST(SetArrayArgumentTest, SetsTheNthArrayWithEmptyRange) {
 // Tests SetArrayArgument<N>(first, last) where *first is convertible
 // (but not equal) to the argument type.
 TEST(SetArrayArgumentTest, SetsTheNthArrayWithConvertibleType) {
-  typedef void MyFunction(bool, char*);
+  typedef void MyFunction(bool, int*);
-  int codes[] = { 97, 98, 99 };
+  char chars[] = { 97, 98, 99 };
-  Action<MyFunction> a = SetArrayArgument<1>(codes, codes + 3);
+  Action<MyFunction> a = SetArrayArgument<1>(chars, chars + 3);
 
-  char ch[4] = {};
+  int codes[4] = { 111, 222, 333, 444 };
-  char* pch = ch;
+  int* pcodes = codes;
-  a.Perform(make_tuple(true, pch));
+  a.Perform(make_tuple(true, pcodes));
-  EXPECT_EQ('a', ch[0]);
+  EXPECT_EQ(97, codes[0]);
-  EXPECT_EQ('b', ch[1]);
+  EXPECT_EQ(98, codes[1]);
-  EXPECT_EQ('c', ch[2]);
+  EXPECT_EQ(99, codes[2]);
-  EXPECT_EQ('\0', ch[3]);
+  EXPECT_EQ(444, codes[3]);
 }
 
 // Test SetArrayArgument<N>(first, last) with iterator as argument.