};
template <typename T>
-typename T::key_type *const DenseMapTest<T>::dummy_key_ptr = 0;
+typename T::key_type *const DenseMapTest<T>::dummy_key_ptr = nullptr;
template <typename T>
-typename T::mapped_type *const DenseMapTest<T>::dummy_value_ptr = 0;
+typename T::mapped_type *const DenseMapTest<T>::dummy_value_ptr = nullptr;
// Register these types for testing.
typedef ::testing::Types<DenseMap<uint32_t, uint32_t>,