expected
Experimental Boost.DI
| expected | Experimental Boost.DI | |
|---|---|---|
| 18 | 8 | |
| 1,404 | 1,103 | |
| - | 1.5% | |
| 2.1 | 3.5 | |
| 4 months ago | 24 days ago | |
| C++ | C++ | |
| Creative Commons Zero v1.0 Universal | - |
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expected
- Functional Programming in Modern C++: The Imperatives Must Go ā Victor Ciura [video]
- Functional exception-less error handling with C++23's optional and expected
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C++23's New Fold Algorithms - C++ Team Blog
On this topic Sy Brand is a guarantee, in fact he did the https://github.com/TartanLlama/expected and several presentation of the subject.
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What is the status of the monadic operations for std::expected? It seems like they made it into the standard for C++23, but they don't actually seem to be available in the std::expected implementation (in MSVC's STL)
In the meantime, I may use the TartanLlama implementation (here) and plan around replacing it with the real deal in the near future.
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ADSP Episode 114: Rust, Val, Carbon, ChatGPT & Errors with Barry Revzin!
Sy Brand's tl::expected
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Daily bit(e) of C++ | Error handling
expected is my favourite little part of cpp23, Iām using it often in codebase with https://github.com/TartanLlama/expected š
- Noticing the the difference in coding when going back to C++
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What are some cool modern libraries you enjoy using?
outcome and/or expected
- Do you use builder pattern?
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Why should I have written ZeroMQ in C, not C++ (2012)
Eventually you'll be able to use std::expected in C++23!
https://en.cppreference.com/w/cpp/header/expected
Don't throw exceptions, require the caller to handle errors and propagate them up the stack (everything returns an expected) if they cannot be handled. You are forced to model the error domains instead of just throwing an exception and assuming the caller knows to catch it and do something with it.
Java has checked exceptions, but, Kotlin decided to abandon them.
The nice codebases I have worked on stick to the Result type in Swift or Kotlin. And thus you are forced to 'translate' errors (exceptions?) as described in Alan Griffith's 'Exceptional Java'.
https://accu.org/journals/overload/10/48/griffiths_406/
"If a checked exception is thrown (to indicate an operation failure) by a method in one package it is not to be propagated by a calling method in a second package. Instead the exception is caught and "translated". Translation converts the exception into: an appropriate return status for the method, a checked exception appropriate to the calling package or an unchecked exception recognised by the system. (Translation to another exception type frequently involves "wrapping".)"
If you can't wait for C++23, there's a single header implementation here.
https://github.com/TartanLlama/expected
Experimental Boost.DI
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What are some cool modern libraries you enjoy using?
I love: https://github.com/boost-ext/di for dependency injection
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[C++20] New way of meta-programming?
https://github.com/boost-ext/di (To detect constructor parameters and inject dependencies without runtime dispatch)
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Dependency injection
I was looking to try boost.di for some time, looks nice. https://boost-ext.github.io/di/
- Dependency injection with c++
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Architecture of a Qt application
Things like Dependency Injection/Inversion are a little more cumbersome in C++ but certainly can be done, and I believe there's libraries for that as well (found a couple searching around, like fruit and boost-ext di ).
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Jodd ā The Unbearable Lightness of Java
Dependency injection does not have to be dynamic, it can totally be done at compile time. Boost DI is an example: https://boost-ext.github.io/di/
- DI in c++ hurt by lack of good libraries?
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Top five C/C++ things/tips/tricks you wish you had known earlier and are now used very often
Funny you mention dependency injection, proposed Boost.DI shall be up for Boost peer review probably in March. https://boost-ext.github.io/di/
What are some alternatives?
libCat - šāā¬ A runtime for C++26 w/out libC or POSIX. Smaller binaries, only arena allocators, SIMD, stronger type safety than STL, and value-based errors!
kangaru - š¦ A dependency injection container for C++11, C++14 and later
AECforWebAssembly - A port of ArithmeticExpressionCompiler from x86 to WebAssembly, so that the programs written in the language can run in a browser. The compiler has been rewritten from JavaScript into C++.
American Fuzzy Lop - american fuzzy lop - a security-oriented fuzzer
cpp-libp2p - C++17 implementation of libp2p
c-smart-pointers - Smart pointers for the (GNU) C programming language
Thrust - [ARCHIVED] The C++ parallel algorithms library. See https://github.com/NVIDIA/cccl
gcc-poison - gcc-poison
magnum - Lightweight and modular C++11 graphics middleware for games and data visualization
outcome - Provides very lightweight outcome<T> and result<T> (non-Boost edition)
stb - stb single-file public domain libraries for C/C++