leaf VS outcome

Compare leaf vs outcome and see what are their differences.

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leaf outcome
- 9
289 662
1.0% -
7.5 7.4
10 days ago 24 days ago
C++ C++
Boost Software License 1.0 GNU General Public License v3.0 or later
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.

leaf

Posts with mentions or reviews of leaf. We have used some of these posts to build our list of alternatives and similar projects.

We haven't tracked posts mentioning leaf yet.
Tracking mentions began in Dec 2020.

outcome

Posts with mentions or reviews of outcome. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-02-26.
  • How to define API stability for a C++ library?
    2 projects | /r/cpp | 26 Feb 2023
    https://github.com/ned14/outcome/tree/develop/abi-compliance uses both in a CI pass to ensure Outcome never changes anything which breaks either API or ABI with earlier versions.
  • What are some cool modern libraries you enjoy using?
    32 projects | /r/cpp | 18 Sep 2022
    outcome and/or expected
  • Outcome enters sustaining phase, goes ABI stable
    4 projects | /r/cpp | 10 Jan 2022
    A "Sample Usage" appears on the front page of the docs: https://ned14.github.io/outcome/
  • Does Anyone Use Boost Outcome?
    1 project | /r/embedded | 5 Aug 2021
    I recently came across boost outcome as I was searching for a better error handling method. It took me a minute to get a hang of it but now I love it. After creating my own policy and a few aliases for easier use.
  • Is this error handling strategy good?
    1 project | /r/cpp_questions | 24 May 2021
    std::optional and std::variant can be a bit awkward to use in this scenario, though. Consider a dedicated type like boost::outcome (standalone versions) or one of the implementations of the proposed std::expected.
  • Modern C++ "result" type based on Swift / Rust
    2 projects | /r/cpp | 13 Mar 2021
    Minimum possible compile time impact is a key goal of https://github.com/ned14/outcome. We ship a single header edition which only includes the low impact standard headers as listed at https://github.com/ned14/stl-header-heft. We also don't use union storage for non-TC non-MB types in order to avoid complex metaprogramming execution by the compiler per instantiation.
  • C++ Memory Safety
    1 project | /r/cpp | 5 Feb 2021
    It's really weird that I wrote the above, and then this bug was reported to Outcome: https://github.com/ned14/outcome/issues/244. Here is my exact complaint about lack of lifetime tracking in C++.

What are some alternatives?

When comparing leaf and outcome you can also consider the following projects:

STX - C++17 & C++ 20 error-handling and utility extensions.

C++ Format - A modern formatting library

ZXing - ZXing ("Zebra Crossing") barcode scanning library for Java, Android

Experimental Boost.DI - C++14 Dependency Injection Library

stb - stb single-file public domain libraries for C/C++

PHP CPP - Library to build PHP extensions with C++

Serial Communication Library - Cross-platform, Serial Port library written in C++

RE2 - RE2 is a fast, safe, thread-friendly alternative to backtracking regular expression engines like those used in PCRE, Perl, and Python. It is a C++ library.

HTTP Parser - http request/response parser for c

American Fuzzy Lop - american fuzzy lop - a security-oriented fuzzer