• Additions

  • sm::flush_queue() — drain pending queued events from async handlers (#456)
  • sml::clear_defer action — discard deferred events from a transition (#643)
  • sml::deps<Ts...> policy — explicit pool dependencies for generic-lambda actions/guards (#437)
  • sml::make_action<Deps...>(f) — wrap a template/generic/constrained callable so its dependency and event types are deduced from the explicit <Deps...> list (#629)

• Behavior changes

  • Empty-SM min-size trick is now OFF by default on GCC/Clang (it was UB at -O2);
    opt back in with BOOST_SML_CFG_ENABLE_MIN_SIZE. sizeof(sm) for an empty SM may change (#249)
  • any/_ wildcard no longer fires when a composable sub-SM has terminated (#622)
  • Events raised via process(E{}) are now storable in the process queue (#580)
  • Guard taking const State& now sees live pool state instead of a stale copy (#530)
  • Sub-SM defer queue is cleared when its composite state is re-entered (#253)

• Bug Fixes

  • Template-depth, -Wshadow, -Wextra-semi, UBSan, final-class, null-deref,
    double-pop, reserved-identifier and related fixes — see full list:
  • v1.1.13...v1.2.0

• Documented limitations

  • on_entry<_> multi-TU linker limitation and dispatch priority (#565)
  • operator, with two raw member-function-pointer actions; wrap() workaround (#389)

Big thanks to @PavelGuzenfeld for making this happen!

What's Changed

• Anonymous transitions in composition by @vasdal in #640
• Prevent compiler options propagating to projects using SML by @eclig in #642
• Handle anonymous events with process_internal_events by @jefftrull in #648
• Update initial submachines of composite states upon re-entry by @jefftrull in #649
• zephyr: Add files to support using with zephyr RTOS by @d-o in #652
• fix typo in README by @dornbirndevelops in #654
• Fallback to any_state when state-specific guard fails by @vasdal in #655
• ⬆️ v1.1.13 by @kris-jusiak in #657

New Contributors

• @eclig made their first contribution in #642
• @jefftrull made their first contribution in #648
• @d-o made their first contribution in #652
• @dornbirndevelops made their first contribution in #654

Full Changelog: v1.1.12...v1.1.13

What's Changed

• Add support for IAR arm compiler by @hyperspacex2 in #621
• Handling the any state correctly when using a nested state machine by @vasdal in #634

New Contributors

• @hyperspacex2 made their first contribution in #621
• @vasdal made their first contribution in #634

Full Changelog: v1.1.11...v1.1.12

:arrow_up: 1.1.9

v1.1.8
:bug: Fix for constexpr in C++14

• bug fixes
• constexpr support

:arrow_up: [release] v1.1.6

:arrow_up: v1.1.5