16 #ifndef dealii_storage_h
17 #define dealii_storage_h
25 #include <type_traits>
53 std::is_default_constructible_v<T>,
54 "This class requires that the elements of type T are default constructible.");
124 std::deque<std::unique_ptr<T>>
data;
130 std::deque<std::unique_ptr<T>>
cache;
140 template <
typename T>
142 : max_n_elements(max_elements)
147 template <
typename T>
152 auto el = std::move(data[ind]);
153 data.erase(data.begin() + ind);
155 cache.push_back(std::move(el));
164 template <
typename T>
168 std::unique_ptr<T> new_el;
169 if (data.size() < max_n_elements)
175 new_el = std::make_unique<T>(element);
181 new_el = std::move(cache.back());
191 new_el = std::move(data.back());
198 data.push_front(std::move(new_el));
207 template <
typename T>
217 template <
typename T>
227 template <
typename T>
236 template <
typename T>
240 return max_n_elements;
245 template <
typename T>
T & operator[](const std::size_t index)
std::size_t max_size() const
const T & operator[](const std::size_t index) const
FiniteSizeHistory(const std::size_t max_elements=0)
std::deque< std::unique_ptr< T > > cache
std::size_t max_n_elements
void add(const T &element)
std::deque< std::unique_ptr< T > > data
void remove(const std::size_t index)
#define DEAL_II_NAMESPACE_OPEN
#define DEAL_II_NAMESPACE_CLOSE
static ::ExceptionBase & ExcInternalError()
#define Assert(cond, exc)
#define AssertIndexRange(index, range)