message: hammer: trying to fix memory issue with valarray
diff: @@ -667,11 +667,10 @@ struct external_constructor<value_t::array>
  enable_if_t<std::is_convertible<T, BasicJsonType>::value, int> = 0>
  static void construct(BasicJsonType& j, const std::valarray<T>& arr)
  {
  - using std::begin;
  - using std::end;
  j.m_type = value_t::array;
  j.m_value = value_t::array;
  - j.m_value.array = j.template create<typename BasicJsonType::array_t>(begin(arr), end(arr));
  + j.m_value.array->resize(arr.size());
  + std::copy(std::begin(arr), std::end(arr), j.m_value.array->begin());
  j.assert_invariant();
  }
  };
  @@ -1112,10 +1111,7 @@ void from_json(const BasicJsonType& j, std::valarray<T>& l)
  JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(j.type_name())));
  }
  l.resize(j.size());
  - for (size_t i = 0; i < j.size(); ++i)
  - {
  - l[i] = j[i];
  - }
  + std::copy(j.m_value.array->begin(), j.m_value.array->end(), std::begin(l));
  }
  template<typename BasicJsonType, typename CompatibleArrayType>
  