Issues

• MSVC popcount() uses __popcnt/__popcnt64 unconditionally — SIGILL on pre-Nehalem CPUs (no POPCNT support)

  arximboldi/immer#327 · Filter by author dismine opened on Sep 19, 2026
  1

• Can immer::vector support incomplete types with sizes known at compile time?

  arximboldi/immer#320 · Filter by author aimoonchen opened on Jan 16, 2026
  5

• Forward declaration fails with immer::map when it used to work

  arximboldi/immer#312 · Filter by author maltaisn opened on Dec 2, 2025
  3

• Explore ClojureDart-style hash maps

  arximboldi/immer#311 · Filter by author jeaye opened on Nov 27, 2025
  2

• 3 tests fail on powerpc: flex_vector-fuzzed-0 (Failed), flex_vector_transient-B3-BL0 and flex_vector_transient-gc (Bus error)

  arximboldi/immer#309 · Filter by author barracuda156 opened on Nov 7, 2025
  2

• Tests use libfmt headers without requiring or checking for its presence

  arximboldi/immer#308 · Filter by author barracuda156 opened on Nov 6, 2025

• 0.9 Release

  arximboldi/immer#305 · Filter by author BenLeadbetter opened on Nov 5, 2025
  1

• std::vector creation from immer::map/set iterator pair fails starting at gcc 14.3

  arximboldi/immer#302 · Filter by author TheCoconutChef opened on Jul 25, 2025
  3

• Inquiry About Natvis File for Debugging

  arximboldi/immer#298 · Filter by author ProxyCheng opened on Apr 3, 2025
  1

• NDEBUG flag breaks binary compatibility, which can cause mysterious crashes

  arximboldi/immer#272 · Filter by author kosak opened on Sep 24, 2023
  5

• IMMER_RETHROW causes -Wreturn-type warnings in IMMER_NO_EXCEPTIONS builds

  arximboldi/immer#264 · Filter by author BillyDonahue opened on Jun 1, 2023
  2

• noexcept move constructors for flex_vector and other data-structures

  arximboldi/immer#244 · Filter by author maierlars opened on Dec 29, 2022
  9

• GCC 12 gives lots of verbose warnings

  arximboldi/immer#223 · Filter by author bredelings opened on Jul 6, 2022
  3

• Boehm GC optional dependency warnings at configure time

  enhancement
  arximboldi/immer#204 · Filter by author kevin-- opened on Mar 8, 2022
  4

• Thread safety issues in free_list_heap

  bug
  arximboldi/immer#182 · Filter by author goedderz opened on Jun 22, 2021
  5

• map and set initializer_list constructors

  enhancement
  arximboldi/immer#175 · Filter by author jeaye opened on Apr 21, 2021
  1

• Issues with multiple lambdas and immer::all_of

  bug
  arximboldi/immer#173 · Filter by author arximboldi opened on Mar 23, 2021

• Implement for_each_chunk_p for champ

  enhancement
  arximboldi/immer#171 · Filter by author arximboldi opened on Mar 2, 2021

• __has_feature may not be accurate

  bughelp wanted
  arximboldi/immer#168 · Filter by author tusooa opened on Dec 25, 2020
  5

• Add custom allocator with precise garbage collector

  enhancement
  arximboldi/immer#159 · Filter by author jeffplaisance opened on Aug 30, 2020
  1

• Add optional weights to rrbtree and flex_vector

  enhancement
  arximboldi/immer#158 · Filter by author jeffplaisance opened on Aug 30, 2020
  1

• Add constructor for box<T> from box<Y> for compatible Y

  enhancement
  arximboldi/immer#157 · Filter by author KholdStare opened on Aug 25, 2020
  3

• Defining a security vulnerability notification strategy

  enhancementquestion
  arximboldi/immer#156 · Filter by author mrdewitt opened on Aug 21, 2020
  1

• Can't really construct a box with non-list initialization

  bug
  arximboldi/immer#155 · Filter by author tusooa opened on Aug 19, 2020
  2

• Add a keys() method to immer::map.

  enhancement
  arximboldi/immer#154 · Filter by author siapran opened on Aug 12, 2020
  4