v0.1.5

🚀 Features

• ✨ support C++14
• 💫 concepts: C++20 uses concepts
• executor:
  • ✨ execution_context traits
  • 💫 execute free-function
  • 🌟 library thread_pool
• 💫 iterator concept traits
• 🌟 futures::future_status
• ✨ throw: support no exceptions
• config:
  • 🌟 symbol visibility macros
  • ✨ public config
• 💫 modules: main headers for modules

⚡️ Performance

• allocator:
  • default pool allocator used for eager futures
  • use boost.core for allocator traits
• adaptors: continuation tags
• traits: simplify traits to improve compile-time
• tuple algorithm: use mp11 algorithms for tuples
• operation state: use never valueless variant2
• empty base: use boost.core
• operation states: use compressed tuples
• schedule: eager vs deferred benchmark

♻️ Refactor

• concepts: traits are the ones defined in terms of concepts
• traits:
  • future_like traits
  • void_t uses make_void (required by some older GCC versions)
  • future-like traits infer defaults from member functions
• partitioner:
  • split headers
  • concept is partitioner_for (🚨 BREAKING)
    • The concept used to be called partitioner
• templates:
  • use terse concept syntax
  • public functions use concepts
    • This improves documentation while private functions use a single syntax for C++14 and C++20
  • use class keyword to define templates
• executor:
  • built-in asio_executor concept
    • This avoids including asio headers, which is what takes the longest in our time-traces
  • executors are classes (not structs)
• execute: only const executors are supported
  • executors are const but execution contexts are usually not and can't execute anything
• includes: std includes removed
• algorithm: parallel algorithms filter forward iterators
• future:
  • fundamental future types are extern template
  • use boost.core noncopyable
• core:
  • no dependencies on std::future at all
    • Even future_status is replaced without inclusion
• exceptions:
  • futures always throw native exceptions
  • use boost throw_exception
• deps: fetched asio is installed as bundled
• continue: template continuations support
• error: make error code is private
• config:
  • require macros
  • public config macros
• asio: compiled futures uses compiled asio
• split implementation files
• detail: regular void
• adaptors:
  • use mp11 algorithm traits
  • next future traits
• futures: move main module to root

📖 Documentation

• doxygen:
  • update exclude folders
  • namespace cppreference links
  • adaptors indicate implementation detail types
  • future.hpp is always parsed first
  • disable autolink
  • traits use std aliases
• benchmark: eager future benchmark has 30000 replicates
• template: not made with mdsplit
• algorithm_traits: trait derived classes
• readme: update badges
• macros:
  • FUTURES_PREFER_STANDALONE_ASIO is in config reference
  • doxygen does not expand requires
  • add table of macros
• index:
  • coverage badge
  • update GHA badge
  • banner has no link to self
• mkdocs: reference links are lowercase
• javadocs: fix javadocs typos
• when_any: result type has briefs
• reference:
  • use default doxybook templates
  • simplify indexes
  • exception safety section
  • refactor javadoc
• modules: launch module has no submodules
• snippets: snippets as unit tests
• badges: center badges
• motivation:
  • merge motivation section
  • simplify abstract
• mermaid: remove mkdocs-mermaid2-plugin
• quickstart:
  • fix typo
  • reflect bundled deps
• style: update banner
• abstract: improve code reuse

🎨 Style

• clang-format:
  • exclude bundled directories
  • insert braces
  • set qualifier alignment
  • update brace wrapping for classes
• rename root directories

📦️ Build

• linter:
  • create glob includes
  • fix unreachable headers
  • print stats
  • bundle deps
    • If dependencies are not found, then use the bundled ones
  • bundle standalone Asio
    • This significantly reduces the number of bundled Boost dependencies
• dev-mode:
  • clang flame graphs
  • warning as error option
• amalgamator:
  • remove single header build
  • keep comments in bundled deps

🧪 Tests

• time-trace: clang version 9 for time-trace
• coverage: coverage includes tests
• integration: integration tests
• algorithm: split algorithm tests
• unit:
  • aggregate headers
  • bundle catch2
  • tests per public header

🚦 Continuous Integration

• docs:
  • doxygen from source
  • cache doxybook installation
  • cache doxygen
  • use doxybook develop in the general case
  • workflow concurrency
  • enable docs workflow in develop
• build:
  • apt-get has no cache
  • coverage disables Release
  • build jobs run on all branches
  • check conventional commit
  • junit test
  • update macos
  • update actions
  • no header package
• time-trace: combine time-trace results
• matrix:
  • c++ standards
  • test bundled dependencies
• deps: cache dependencies
• config: test all compiler variants
• codecov: setup codecov

🏗️ Chores

• bump version to 0.1.5
• examples: include macros