advent-of-code-wim VS eigen

Thanks for the extra example. I've added it to my CI and test suite in https://github.com/wimglenn/advent-of-code-wim/pull/89

Full code here

I'm using Python so I'll never be as fast as the people using Rust or C, but am still able to solve most puzzles in under 1 second (repo: https://github.com/wimglenn/advent-of-code-wim).

Thanks for the kind words, well the source is here so you can just take a look. You have to run with var AOC_DEBUG=1 in env to enable the rendering.

I used an AStar pathfinder already prepared from earlier years (aoc2022/q12.py), just leaving the default null heuristic. If I understand correctly that is just a BFS.

https://github.com/wimglenn/advent-of-code-wim/blob/main/aoc_wim/ocr.py has nearly all the letters we've seen (including a larger font used once in 2018) although it is missing the 5-wide Y that was in my 2016-day 08 puzzle

By the way, I found that if you're willing to use pathlib and a guard, you actually only need 2 of those 6 case statements - it looks like this.

Python (repo). I was particularly pleased with how quick the parsing was.

Python + "AOCR" + complex numbers.

Python

Is Eigen still alive? There's been no release in 3 years, and no news about it: https://gitlab.com/libeigen/eigen/-/issues/2699

I was curious about these libraries a few weeks ago and did some searching. Is there one that's got a clearly dominating set of users or contributors?

I don't know what a good way to compare these might be, other than perhaps activity/contributor count.

[1] https://github.com/simd-everywhere/simde

[2] https://github.com/ermig1979/Simd

[3] https://github.com/google/highway

[4] https://gitlab.com/libeigen/eigen

[5] https://github.com/shibatch/sleef

I am trying to include Eigen in my project via FetchContent. They define/assume-defined PROJECT_IS_TOP_LEVEL on line 19 and, among other locations, on line 607 in their top level list file.

Eigen is a header-only library, thus simply cloning it from the official repository into the FOGGDD folder should be enough.

math library because you should never implement a math library yourself, and you probably want somethign more focused on performance than STL. GLM may work if you just need basic vector support. Eigen may help for a more physics heavy game. But I'd probably find something in-between those two

cmake_minimum_required(VERSION 3.15) project(app) include(FetchContent) FetchContent_Declare(Eigen3 URL https://gitlab.com/libeigen/eigen/-/archive/3.4.0/eigen-3.4.0.tar.gz) FetchContent_MakeAvailable(Eigen3) add_executable(app main.cpp) target_link_libraries(app Eigen3::Eigen)

Today was very easy to do with Eigen