A lightweight error handling library for C++11.

https://boostorg.github.io/leaf/

• Small single-header format, no dependencies.
• Designed for maximum efficiency ("happy" path and "sad" path).
• No dynamic memory allocations, even with heavy payloads.
• O(1) transport of arbitrary error types (independent of call stack depth).
• Can be used with or without exception handling.
• Support for multi-thread programming.

• cpplang on Slack (use the #boost channel)
• Boost Users Mailing List
• Boost Developers Mailing List

Besides GitHub, there are two other distribution channels:

• LEAF is included in official Boost releases, starting with Boost 1.75.
• For maximum portability, the library is also available in single-header format: simply download leaf.hpp (direct download link).

Copyright (C) 2018-2021 Emil Dotchevski. Distributed under the http://www.boost.org/LICENSE_1_0.txt[Boost Software License, Version 1.0].