1.82.0

This release includes a bug fix and additional unit tests. It matches exactly the state of the LEAF source code as distributed in the Boost 1.82.0 release.

1.81.0

This release includes:

• Fixes for compile errors in tricky configurations.
• A fix for an API defect, throw leaf::exception(...) now becomes leaf::throw_exception(...).
• Improvements to the TLS array support for embedded platforms.
• Improved configuration coverage for unit tests.

1.81.0-prerelease

First conan release. Minor improvements over version 1.80.0.

Changes based on Boost review feedback and other improvements

This release incorporates the feedback of the Boost Review, changes to improve potential integration with Boost, simplified asynchronous API. Changes:

• The is_e_type trait is deleted. Any value type can be used as an error type.
• Error handlers can now be captured in a tuple and used with try_handle_some, try_handle_all or try_catch. The remote_ prefixed error handling functions are removed.
• preload, defer, and accumulate are all merged into a single API called on_error.
• match is now compatible with std::error_code, e.g. match<std::error_code, 42>.
• Error handlers that take arguments of exception types will automatically catch exceptions; catch_ is now optional, primarily used to catch more than one exception type.
• Error handlers can now take mutable reference (and mutable pointer) arguments.
• augment_id is renamed to error_monitor.
• All LEAF_XXXX macros are renamed to BOOST_LEAF_XXXX.

Configuration improvements, benchmark

This release includes automatic detection for LEAF_NO_EXCEPTIONS and new benchmark program.

Optimizations

This release includes minor optimizations, adds a unit test for the error_id generation logic, and increased Travis CI coverage on Apple platforms.

Improved portability

This release improves the support for -fno-exceptions and adds support for LEAF_NO_THREADS, which disables all multi-thread code.

Optimizations

Optimizations:

• No guard variables generated by the compiler for static/thread_local objects.
• Simpler, more optimal result<T> implementation.

Documentation improvements

Patch release for better documentation, Travis and AppVeyor tweaks.

Minor new features and tweaks

In this release:

• Added operator-> support to result<T>;
• Added a new example to demonstrate using LEAF with outcome::result<T> instead of leaf::result<T>;
• LEAF_AUTO uses .value() instead of operator* to access the value of a result<T> type;
• Fixed a bug in the single header generation script, now headers are included only once;
• Documentation fixes and refinements.