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CHANGELOG.md

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1.9.0 (2024-12-21)

  • Bug fix in segmented_devector::insert_range: Auxiliary iterator was declared too early and was pointing to out-of-range, but it wasn't used. Now, iterator declaration is made in inner scope where it is actually used.
  • New associative containers implemented as red-black tree:
    • map
    • set
    • multimap
    • multiset
    • small_map
    • small_set
    • small_multimap
    • small_multiset
    • static_map
    • static_set
    • static_multimap
    • static_multiset
  • All containers: Added range constructor container(sfl::from_range_t, Range&& r) that is also available in C++11.
  • All containers: Added range insertion function insert_range(Range&& r) that is also available in C++11.
  • All vectors and devectors: Added range assignment function assign_range(Range&& r) that is also available in C++11.
  • All vectors and devectors: Added range append function append_range(Range&& r) that is also available in C++11.
  • All devectors: Added range prepend function prepend_range(Range&& r) that is also available in C++11.
  • Refactored and removed private.hpp.
  • GitHub actions: Use Ubuntu 24.04.
  • GitHub actions: Use matrix strategies.

1.8.2 (2024-11-11)

  • Bug fix: Use correct __cplusplus value for C++20 (it is 202002L).

1.8.1 (2024-11-09)

  • Fixed issue with MSVC compiler that does not correctly set __cplusplus unless compiler flag /Zc:__cplusplus is specified so constexpr and nodiscard were basically always disabled. Now, if MSVC compiler is used then library uses _MSVC_LANG instead of __cplusplus, that allows usage of newer C++ standard features without explicitly specifying /Zc:__cplusplus. Thanks to @ZehMatt.

  • Added iterator_concept member type to sfl::dtl::normal_iterator in C++20 that enables use of std::ranges. Thanks to @ZehMatt.

    For example, the following code will now successfuly compile in C++20:

    static_assert(std::random_access_iterator<sfl::small_vector<uint8_t, 16>::iterator>);
static_assert(std::contiguous_iterator<sfl::small_vector<uint8_t, 16>::iterator>);
static_assert(std::ranges::contiguous_range<sfl::small_vector<uint8_t, 16>>);
static_assert(std::ranges::contiguous_range<sfl::vector<uint8_t>>);

  • Fixed bug in sfl::dtl::make_index_sequence. Fortunately, this bug never caused a problem, but it had to be fixed to avoid problems in the future.

1.8.0 (2024-08-04)

  • New containers vector and devector (double-ended vector).
  • All small containers: Reworked private member function recommend_size and renamed it to calculate_new_capacity. Reduced grow factor from 2.0 to 1.5.

1.7.0 (2024-06-22)

  • Iterators are now distinct types for all containers. Iterators are no more aliases for pointer and const_pointer.

    Now it is possible to overload functions for different iterators, for example:

    void test(const T*);
void test(sfl::compact_vector<T>::const_iterator);
void test(sfl::small_vector<T, 10>::const_iterator);
void test(sfl::small_vector<T, 20>::const_iterator);
void test(sfl::small_flat_set<T, 10>::const_iterator);
void test(sfl::small_flat_set<T, 20>::const_iterator);
void test(sfl::static_unordered_flat_set<T, 10>::const_iterator);
void test(sfl::static_unordered_flat_set<T, 20>::const_iterator);

    The above example cannot be compiled with older versions of this library because iterators are just aliases to pointers and all overloads are equivalent to the overload for const T*.


  • Small flat map: Added heterogeneous at.
  • Small flat map: Added heterogeneous insert_or_assign.
  • Small flat map: Added heterogeneous operator[].
  • Small flat map: Added heterogeneous try_emplace.
  • Small flat set: Added heterogeneous insert.
  • Small unordered flat map: Added heterogeneous at.
  • Small unordered flat map: Added heterogeneous insert_or_assign.
  • Small unordered flat map: Added heterogeneous operator[].
  • Small unordered flat map: Added heterogeneous try_emplace.
  • Small unordered flat set: Added heterogeneous insert.
  • Static flat map: Added heterogeneous at.
  • Static flat map: Added heterogeneous insert_or_assign.
  • Static flat map: Added heterogeneous operator[].
  • Static flat map: Added heterogeneous try_emplace.
  • Static flat set: Added heterogeneous insert.
  • Static unordered flat map: Added heterogeneous at.
  • Static unordered flat map: Added heterogeneous insert_or_assign.
  • Static unordered flat map: Added heterogeneous operator[].
  • Static unordered flat map: Added heterogeneous try_emplace.
  • Static unordered flat set: Added heterogeneous insert.

  • All containers: Use std::distance instead of operator- just for better readability.
  • All containers: Use this-> in public member function swap just for better readability.
  • All small containers: Renamed private data member end_ to eos_ (end-of-storage).
  • Small flat map: Refactored private member function insert_exactly_at.
  • Small flat set: Refactored private member function insert_exactly_at.
  • Small flat multimap: Refactored private member function insert_exactly_at.
  • Small flat multiset: Refactored private member function insert_exactly_at.
  • Small unordered flat map: Refactored private member function emplace_back.
  • Small unordered flat set: Refactored private member function emplace_back.
  • Small unordered flat multimap: Refactored private member function emplace_back.
  • Small unordered flat multiset: Refactored private member function emplace_back.
  • Small vector: Refactored public member functions emplace and emplace_back.
  • Small vector: Refactored private member functions insert_fill_n and insert_range.
  • Updated documentation.

1.6.0 (2024-06-04)

  • Segmented vector and devector: Added public data member segment_capacity.
  • All small and static containers: Added public data member static_capacity.
  • All static containers: Public member functions max_size and capacity are constexpr now.

1.5.0 (2024-05-08)

  • New containers:
    • static_flat_map.
    • static_flat_set.
    • static_flat_multimap.
    • static_flat_multiset.
    • static_unordered_flat_map.
    • static_unordered_flat_set.
    • static_unordered_flat_multimap.
    • static_unordered_flat_multiset.
  • All small containers: Using anonymous union for internal storage. The effect is the same as before, but the code is more readable and it is consistent with static containers.
  • Small flat map: Refactored insert_exactly_at.
  • Small flat map: Fixed memory leak in insert_exactly_at if exception is thrown.
  • Small flat map: Refactored erase.
  • Small flat set: Refactored insert_exactly_at.
  • Small flat set: Fixed memory leak in insert_exactly_at if exception is thrown.
  • Small flat set: Refactored erase.
  • Small flat multimap: Refactored insert_exactly_at.
  • Small flat multimap: Fixed memory leak in insert_exactly_at if exception is thrown.
  • Small flat multimap: Refactored erase.
  • Small flat multiset: Refactored insert_exactly_at.
  • Small flat multiset: Fixed memory leak in insert_exactly_at if exception is thrown.
  • Small flat multiset: Refactored erase.
  • Small unordered flat map: Removed insert_unordered and added emplace_back
  • Small unordered flat set: Removed insert_unordered and added emplace_back
  • Small unordered flat multimap: Removed insert_unordered and added emplace_back
  • Small unordered flat multiset: Removed insert_unordered and added emplace_back
  • Static vector: Refactored copy constructor.
  • Static vector: Refactored move constructor.
  • Static vector: Refactored copy assignment operator.
  • Static vector: Refactored move assignment operator.
  • Static vector: Refactored emplace.

1.4.0 (2024-04-14)

  • New container static_vector.
  • Compact vector: Improved tests for assign.
  • Compact vector: Improved tests for resize.
  • Segmented devector: Refactored member function emplace.
  • Segmented devector: Refactored private member function insert_fill_n.
  • Segmented devector: Refactored private member function insert_range.
  • Segmented devector: Improved tests for assign.
  • Segmented devector: Improved tests for resize.
  • Segmented devector: Improved tests for resize_front.
  • Segmented devector: Improved tests for resize_back.
  • Segmented vector: Refactored member function resize.
  • Segmented vector: Refactored private member function insert_fill_n.
  • Segmented vector: Refactored private member function insert_range.
  • Segmented vector: Improved tests for assign.
  • Segmented vector: Improved tests for emplace_back.
  • Segmented vector: Improved tests for emplace.
  • Small vector: Refactored member function emplace.
  • Small vector: Refactored member function erase.
  • Small vector: Refactored private member function assign_fill_n.
  • Small vector: Refactored private member function assign_range.
  • Small vector: Refactored private member function insert_fill_n.
  • Small vector: Refactored private member function insert_range.
  • Small vector: Improved tests for assign.
  • Small vector: Improved tests for resize.

1.3.1 (2024-03-20)

  • Bug fix: If iterator is segmented iterator but not random access iterator then compiler must select the most basic algorithm (that is not specialized for segmented iterators).

1.3.0 (2024-03-16)

  • New container segmented_devector (segmented double-ended vector).
  • All containers: Added member function available.
  • All containers: Moved common private functions into new header private.hpp.
  • Implemented custom hierarchical algorithms copy, move, fill, etc. in header private.hpp that are aware of segmented iterators.
  • All containers: Use algorithms from header private.hpp whenever possible.
  • Segmented vector: Significantly improved performances by using algorithms from header private.hpp.
  • Segmented vector: Reworked member function emplace.
  • Segmented vector: Reworked member function emplace_back.
  • Segmented vector: Reworked member function resize.
  • Segmented vector: Reworked private member function grow_storage.
  • Segmented vector: Reworked private member function shrink_storage.
  • Segmented vector: Reworked private member function assign_fill_n.
  • Segmented vector: Reworked private member function assign_range.
  • Segmented vector: Reworked private member function insert_fill_n.
  • Segmented vector: Reworked private member function insert_range.
  • Segmented vector: Various small improvements (added comments, added const qualifiers, renamed function and variables, use std::addressof and other minor changes that make code more readable).
  • Segmented vector: Added missing tests for reserve and shrink_to_fit.
  • Segmented vector: Improved tests for resize.
  • Small vector: Renamed variables and exchanged first and second case in member function resize for better readability.
  • All containers: Use sfl::dtl::enable_if_t instead of std::enable_if for better readability.
  • All containers: Use SFINAE instead of iterator tag dispatching to select the most appropriate private member functions initialize_range, assign_range, insert_range and similar.

1.2.4 (2024-02-13)

  • Refactoring insert functions in small maps and sets. Removed duplicated code. Added private member function for checking hint iterator.
  • Removed private nested class temporary_value from all containers. That class was actually was unnecessary. Just use value_type instead of.
  • Reworked move assignment operator of segmented_vector. Old move assignment operator had unusual behavior: in some situations it behaved like swap.
  • Reworked and improved all tests.
  • Added GNU makefiles for test for GCC/Clang and Visual C++ compilers.
  • Reworked scripts for testing on Arch Linux and CentOS 7.
  • Added script for testing on Windows.
  • Reworked and improved erase(iterator) and erase(iterator, iterator) member functions.
  • Added GitHub actions for automated testing.
  • Added CMake support. Thanks to @ZehMatt and @johannes-wolf.

1.2.3 (2023-08-14)

  • Refactoring - inheritance. Containers no longer inherit directly from Allocator, Compare or KeyEqual. This solves some rare and obscure problems and errors (for example, Allocator with virtual member function that has the same name as container's member function). Every container from now has private member class data that contains pointers and inherits directly from Allocator, Compare or KeyEqual. Empty base optimization is also used in this case.

1.2.2 (2023-08-07)

  • New test script. Added test scripts for CentOS 7 and Arch Linux to test all possible combinations of compiler flags.
  • Converted detailed documentation from AsciiDoc to Markdown format. Markdown is simpler and easier to read and maintain.
  • Updated README file.
  • Converted CHANGELOG file to Markdown format.

1.2.1 (2023-02-23)

  • Reorganized tests.
  • Updated README file.

1.2.0 (2022-06-29)

  • New container segmented_vector.
  • Move constructors and move assignment operators no longer implicitly call other.clear(). This behavior applies to ALL containers. In other words, other is not guaranteed to be empty after the move. other is in a valid but unspecified state after the move.
  • Bug fix: small_vector constructor taking only size is no longer explicit.
  • Improved common functions and macros (constexpr, noexcept, all calls to functions in SFL_DTL namespace are fully qualified).
  • Improved allocators for tests.

1.1.0 (2022-05-11)

  • Added option to avoid exception handling. If SFL_NO_EXCEPTIONS is defined, the library avoids using try/catch/throw statements. In case of error std::abort is called.
  • Internal changes: Removed macro SFL_UNUSED. Added function ignore_unused. Added macro SFL_CONSTEXPR_14.

1.0.1 (2022-03-24)

  • Fixed compile error regarding function to_pointer when C++20 is used. Call to to_address must be fully qualified, i.e. SFL_DTL::to_address. If call is not fully qualified then compiler somehow cannot decide between std::to_address and SFL_DTL::to_address.
  • Improved tests. Testing with different allocators. Several allocators are designed specially for tests. One of allocators uses fancy pointers.

1.0.0 (2022-03-17)

  • Fancy pointers revisited. Using pointer traits to_address and to_pointer.
  • Started semantic versioning (see https://semver.org).
  • Added file VERSION.txt.

2022-03-13-1

  • static_assert must have message in C++11.

2022-03-13

  • Added pointer trait to_address. Added support for fancy pointers.
  • Updating tests.
  • Added file CHANGELOG.txt.

2022-02-24

  • Fixed swap member functions. Old member functions could create memory leaks in case of exceptions.