How to run:
$ crystal run src/bar.cr
hello from crystal
Just called a Rust function from C!
David Ellis davidkellis
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| ints = File.readlines("input.txt").map(&:to_i) | |
| puts ints.sum |
davidkellis
/ Cargo.toml
Last active
December 10, 2018 22:19
foo project in rust (to be called from a crystal project called bar - https://gist.github.com/davidkellis/f40588787a354aa7d44c4dec4c52ad50)
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| [package] | |
| name = "foo" | |
| version = "0.1.0" | |
| authors = ["davidkellis <[email protected]>"] | |
| [dependencies] | |
| [lib] | |
| crate-type = ["cdylib"] |
davidkellis
/ README.md
Last active
December 10, 2018 22:19
bar project in Crystal (that calls the foo library, implemented in Rust - https://gist.github.com/davidkellis/78bd7c65f31539b183f1b60c43339ff9)
davidkellis
/ gist:b87695e8cf8cf7b762a67ea7c60a6b39
Last active
December 21, 2018 19:23
guessing game (ruby)
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| # solution to https://www.reddit.com/r/dailyprogrammer/comments/pii6j/difficult_challenge_1/ | |
| def main | |
| lower_bound = 1 | |
| upper_bound = 100 | |
| puts "Think of a number between 1 and 100, inclusive." | |
| puts "At each guess, answer with 'l' to indicate your number is lower than the guess, 'h' to indicate your number is higher than the guess, or 'y' to indicate the guess is correct." | |
| while true | |
| guess = (lower_bound + upper_bound) / 2 | |
| puts "Is #{guess} your number?" |
davidkellis
/ able v1 parse tree and ast example
Last active
January 1, 2019 21:16
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| david:~/Dropbox/projects/able/compiler $ crystal src/cli.cr -- -f ../examples/helloworld.able | |
| parse tree: | |
| (apply File ; id=5414918336 rule_name="File" label="" | |
| (choice ; id=5414918416 label="" | |
| (seq ; id=5414918496 label="" | |
| (apply PackageDecl ; id=5414919936 rule_name="PackageDecl" label="" | |
| (choice ; id=5414920016 label="" | |
| (seq ; id=5414920096 label="" | |
| "package"[id=5452605472 label=""] | |
| (apply package_ident ; id=5414904128 rule_name="package_ident" label="" |
davidkellis
/ Vagrantfile
Created
November 19, 2019 20:37
vagrant box: ubuntu 18.04 + rustup + rust + tesseract
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| # -*- mode: ruby -*- | |
| # vi: set ft=ruby : | |
| # All Vagrant configuration is done below. The "2" in Vagrant.configure | |
| # configures the configuration version (we support older styles for | |
| # backwards compatibility). Please don't change it unless you know what | |
| # you're doing. | |
| Vagrant.configure("2") do |config| | |
| # The most common configuration options are documented and commented below. | |
| # For a complete reference, please see the online documentation at |
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