Issues

• from_blocks into a non-whole-block fixed width compiles to byte shuffling on GCC

  rhalbersma/xstd-bits#390 · Filter by author rhalbersma opened on Oct 10, 2026

• Bit algorithms: block-wise rotate, reverse and bit_count over the containers' iterators

  rhalbersma/xstd-bits#386 · Filter by author rhalbersma opened on Oct 10, 2026

• Next audit: type-matrix compile table, fast-path assertions, doc drift check, conformance inventories

  rhalbersma/xstd-bits#377 · Filter by author rhalbersma opened on Oct 9, 2026

• bit_equal: compare bit ranges of one reading across block types and storages, as an algorithm

  rhalbersma/xstd-bits#369 · Filter by author rhalbersma opened on Oct 8, 2026
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• One traits concept: an order-preserving bijection onto positions, for keys, characters and K-bit elements

  rhalbersma/xstd-bits#345 · Filter by author rhalbersma opened on Oct 5, 2026

• A public const blocks() observer, so bit_convert needs no friend door

  rhalbersma/xstd-bits#332 · Filter by author rhalbersma opened on Oct 3, 2026

• Draft upstream report: stdx::bitset unused high bits and full-width shifts (intel/cpp-std-extensions)

  rhalbersma/xstd-bits#330 · Filter by author rhalbersma opened on Oct 3, 2026

• bit_flag_set: drop-in flag types over bitmask enums, with xstd::filesystem::perms as the worked example

  rhalbersma/xstd-bits#329 · Filter by author rhalbersma opened on Oct 3, 2026

• Pattern matching over bit strings beyond substrings (bit regex, compile-time automata)

  enhancementfuture extension
  rhalbersma/xstd-bits#328 · Filter by author rhalbersma opened on Oct 3, 2026

• Rank and select as bit-packed distance/next, and count-and-fill sort/partition/nth_element on bools

  enhancement
  rhalbersma/xstd-bits#327 · Filter by author rhalbersma opened on Oct 3, 2026

• Key first and a direction comparator on the set owners, and bit_enum_set<E>

  rhalbersma/xstd-bits#325 · Filter by author rhalbersma opened on Oct 3, 2026

• Prior art: third-party bit and element containers across the fixed / bounded / small / dynamic columns

  rhalbersma/xstd-bits#324 · Filter by author rhalbersma opened on Oct 3, 2026

• MSVC probe: run a one-off program under cl on GitHub's Windows runners

  rhalbersma/xstd-bits#319 · Filter by author rhalbersma opened on Oct 3, 2026

• Report boost::dynamic_bitset's single-pass append(first, last) breaking its strong guarantee upstream

  rhalbersma/xstd-bits#314 · Filter by author rhalbersma opened on Oct 2, 2026

• Report boost::dynamic_bitset's moves not being noexcept upstream

  rhalbersma/xstd-bits#313 · Filter by author rhalbersma opened on Oct 2, 2026

• Ask Boost.Container to throw a std::bad_alloc from static_vector's capacity overrun

  rhalbersma/xstd-bits#312 · Filter by author rhalbersma opened on Oct 2, 2026

• Report Boost.Container's partial single-pass small_vector insertion upstream

  rhalbersma/xstd-bits#311 · Filter by author rhalbersma opened on Oct 2, 2026

• Report libc++'s std::equal giving wrong answers on unaligned vector<bool> ranges upstream

  rhalbersma/xstd-bits#307 · Filter by author rhalbersma opened on Oct 2, 2026

• Report libc++'s vector<bool> insert shifting a word by its width upstream

  rhalbersma/xstd-bits#305 · Filter by author rhalbersma opened on Oct 2, 2026

• Report Boost.Container's swap gaps (static_vector noexcept, small_vector's bypassed friend) upstream

  rhalbersma/xstd-bits#302 · Filter by author rhalbersma opened on Oct 1, 2026

• Report libstdc++'s partial single-pass vector insertion upstream

  rhalbersma/xstd-bits#301 · Filter by author rhalbersma opened on Oct 1, 2026

• Report MSVC STL's partial single-pass vector insertion upstream

  rhalbersma/xstd-bits#300 · Filter by author rhalbersma opened on Oct 1, 2026

• Reduce and report MSVC's C1001 on a lambda inside if constexpr inside a generic lambda

  rhalbersma/xstd-bits#299 · Filter by author rhalbersma opened on Oct 1, 2026

• Report MSVC STL's allocating noexcept vector move under _ITERATOR_DEBUG_LEVEL=2 upstream

  rhalbersma/xstd-bits#298 · Filter by author rhalbersma opened on Oct 1, 2026

• Report libc++'s corrupting set/map assignment upstream

  rhalbersma/xstd-bits#297 · Filter by author rhalbersma opened on Oct 1, 2026