compile-time-regular-expressions
Open-Source Vulkan C++ API
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compile-time-regular-expressions
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Why are strings and IO so complicated?
CTRE (https://github.com/hanickadot/compile-time-regular-expressions) ranges::views (filter, transform, etc.) (C++20) str.find() + str.substr() freopen to stdin + cin >> extraction Parser libraries
- Compile time regular expression in C++
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What are thoughts on removing regular expression from the standard library?
There are suggestions that should be replaced by the high performance ctre implementation: https://github.com/hanickadot/compile-time-regular-expressions
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What's the most hilarious use of operator overloading you've seen?
operator"" can be used in a similar way to expression templates (DSLs), where the type of the resulting expression is dependent on the string contents. For example ctre makes use of this to build efficient regular expression parsers, and kumi uses this in conjunction with operator[] to make tuple indexing quite elegant
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It's easy, I swear! Once you learn a bit about it, you'll be amazed!
Check out https://github.com/hanickadot/compile-time-regular-expressions anything is possible 😂
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Verify all characters are same except a few
Yes to regex, no to std::regex. Better to use CTRE. Something like "^Hello [0-9]+ how are you" should allow checking if there's a match
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Constexpr regex parser!
You could compare your implementation with https://github.com/hanickadot/compile-time-regular-expressions and see if there are any ideas you can copy.
- Regex is comically slow. High performance alternatives? (Pattern matching for validation)
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Regex shootout updated - hyperscan 1st, Rust 2nd, std::regex dead last
std::compile_time_regex would be a nice addition. Something similar to ctre https://github.com/hanickadot/compile-time-regular-expressions Simply letting the compiler generate all the regex parsing machinery at compile time.... And benefitting from compiler optimizations, vectorization, etc...
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What are some cool modern libraries you enjoy using?
ctre
Open-Source Vulkan C++ API
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what math is required?
It might be useful to maybe look at the Vulkan.hpp examples since you can do the same in about 200 lines of code. https://github.com/KhronosGroup/Vulkan-Hpp/blob/main/samples/15_DrawCube/15_DrawCube.cpp
- Vulkan-Hpp now provides C++20 module interface file
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How do you guys organize everything?
Wow that library looks amazing, I'll definitely be using it. Bonus that it's official from the Khronos Group. https://github.com/KhronosGroup/Vulkan-Hpp
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An idea to ease wrapping C libraries in C++.
Even auto-generated c++ wrappers like vulkan-hpp require lots of manual maintenance.
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Anybody know why V-EZ has not been updated in 5 years?
Ultimately I went with vulkan.hpp RAII bindings, even though that way also has some learning curve and I couldn't find any documentation other than the RAII programming guide. It's great for getting started, but could use a complementary auto-generated API doc. There are also decent programming samples, which really suck for getting started, but otherwise do a good job of presenting concepts they focus on. Putting the available resources together I was able to get a project going in two weekends.
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Using enum classes as bitmasks
This is exactly how the official Vulkan C++ API, Vulkan-Hpp does it. For the precise example mentioned in the blog post:
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Recommendations on how to start a small Vulkan project
Or the vulkan.hpp RAII samples would be a good place?
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What's the most hilarious use of operator overloading you've seen?
For a real-life example: consider the vk::raii namespace of Vulkan-Hpp, where the developers have posted examples. The vk::raii::su namespace has a bunch of free functions that one might think are associated with a Vulkan instance/object (in fact, the Vulkan Tutorial does implement them as member functions), but they are much nicer when used as pure functions. It keeps the class/struct definition itself nice and clean.
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Vulkan-HPP + Vulkan C API == Aliasing Bugs!
final c++17 draft (N4659) first post-publication draft after c++20 (N4868) vulkan-structs.hpp (containing the vk::ImageCreateInfo definition) VkImageCreateInfo struct
What are some alternatives?
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.
Ogre 3D - scene-oriented, flexible 3D engine (C++, Python, C#, Java)
consteval-huffman - Compile-time Huffman coding compression using C++20
GLFW - A multi-platform library for OpenGL, OpenGL ES, Vulkan, window and input
xorstr - heavily vectorized c++17 compile time string encryption.
Skia - Skia is a complete 2D graphic library for drawing Text, Geometries, and Images.
neo-fun - Some library components that didn't quite fit anywhere else...
urho3d - Game engine
C++ Format - A modern formatting library
Irrlicht - An automatically updated mirror of the Irrlicht SVN repository on sourceforge
staticvec - Implements a fixed-capacity stack-allocated Vec alternative backed by an array, using const generics.
OpenVDB - OpenVDB - Sparse volume data structure and tools