Merge pull request #821 from mazong1123/master

Fixed issue #775. Mark the ConvertibleFromAny constructor as explicit, and fix operator overload issue for Unprintable

googlemock/test/gmock-matchers_test.cc

@@ -613,7 +613,7 @@ TEST(MatcherCastTest, FromSameType) {
 struct ConvertibleFromAny {
   ConvertibleFromAny(int a_value) : value(a_value) {}
   template <typename T>
-  ConvertibleFromAny(const T& /*a_value*/) : value(-1) {
+  explicit ConvertibleFromAny(const T& /*a_value*/) : value(-1) {
     ADD_FAILURE() << "Conversion constructor called";
   }
   int value;
@@ -867,11 +867,15 @@ class Unprintable {
  public:
   Unprintable() : c_('a') {}
 
-  bool operator==(const Unprintable& /* rhs */) { return true; }
  private:
   char c_;
 };
 
+inline bool operator==(const Unprintable& /* lhs */, 
+                       const Unprintable& /* rhs */) { 
+    return true; 
+}
+
 TEST(EqTest, CanDescribeSelf) {
   Matcher<Unprintable> m = Eq(Unprintable());
   EXPECT_EQ("is equal to 1-byte object <61>", Describe(m));