expected-lite
scope_guard
| expected-lite | scope_guard | |
|---|---|---|
| 3 | 3 | |
| 350 | 160 | |
| - | - | |
| 5.5 | 3.7 | |
| 4 months ago | about 1 year ago | |
| C++ | C++ | |
| Boost Software License 1.0 | The Unlicense |
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expected-lite
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Refactoring with C++17 std::optional
Or nonstd::expected. Personally, I would rather use output parameters and an enum result or a std::variant over std::optional, because at the very least you have the option for more specific error diagnostics.
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std::expected (with monadic interface) implementation in C++20 (P0323, P2505)
As someone who is new to this API (so I can't discern from the list of features which might be better for my use case), I second the question, and I'd like to extend the question to how it compares to https://github.com/martinmoene/expected-lite and https://github.com/bitwizeshift/result as well.
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C++ Return: std::any, std::optional, or std::variant?
More info about expected on expected-lite
scope_guard
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Building a Cloud Database from Scratch: Why We Moved from C++ to Rust
E.g. see this implementation: https://ricab.github.io/scope_guard/
But also I should make the point that you generally don't need to write defer-like statements at all when using RAII because it's implemented in the actual type. So it's only more code overall for types that are used only once or maybe twice.
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Possible compiler error ?
Meanwhile I will check and use https://github.com/ricab/scope_guard
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Is WebAssembly magic performance pixie dust?
> low level details leak into your high level description of code, making the two coupled. You can’t make them invisible.
It's your job to make it not to leak. You have to write Modern C++ wrappers around C libs.
Similarity, The same can be said for Java. You can do low level in Java.
C++ is not C. C++ has backward compatibility with C.
Look at Boost folks, they wrote a Modern C++ wrapper around a C HTTP parser.
> And as I said, I’m familiar with RAII, it’s really great when the given object is scope-based, but can’t do anything otherwise.
Nothing is impossible.
You can use Scope Exit Guard with QT Widget.
https://github.com/ricab/scope_guard
> And if the new subclass has some non-standard object life cycle you HAVE to handle that case somewhere else, modifying another aspect of the code. It is not invisible, unless you want leaking code/memory corruption.
Again, Scope Exit Guards solve your problem!
What are some alternatives?
span-lite - span lite - A C++20-like span for C++98, C++11 and later in a single-file header-only library
maddy - C++ Markdown to HTML header-only parser library
Magic Enum C++ - Static reflection for enums (to string, from string, iteration) for modern C++, work with any enum type without any macro or boilerplate code
cpp-peglib - A single file C++ header-only PEG (Parsing Expression Grammars) library
robin-hood-hashing - Fast & memory efficient hashtable based on robin hood hashing for C++11/14/17/20
iswasmfast - Performance comparison of WebAssembly, C++ Addon, and native implementations of various algorithms in Node.js.
expected - P0323 & P2505 std::expected simple implementation
human-asmjs - Tips and tricks for writing asm.js as a human - Note: WebAssembly has replaced asm.js, so this is no longer maintained.
influxdb-cpp - 💜 C++ client for InfluxDB.
expresscpp - Fast, unopinionated, minimalist web framework for C++ Perfect for building REST APIs
tomlplusplus - Header-only TOML config file parser and serializer for C++17.
refl-cpp - Static reflection for C++17 (compile-time enumeration, attributes, proxies, overloads, template functions, metaprogramming).