https://github.com/lecopivo/lean4-karray

https://github.com/lecopivo/lean4-karray

Last synced: 3 months ago
JSON representation

• Host: GitHub
• URL: https://github.com/lecopivo/lean4-karray
• Owner: lecopivo
• License: apache-2.0
• Created: 2021-12-09T19:00:54.000Z (almost 3 years ago)
• Default Branch: master
• Last Pushed: 2022-01-23T03:26:54.000Z (almost 3 years ago)
• Last Synced: 2024-07-18T15:29:50.573Z (4 months ago)
• Language: Lean
• Size: 313 KB
• Stars: 11
• Watchers: 3
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

README

        
# lean4-karray

A WIP package that allows automatic C code generation for functions defined in

Lean.

## Usage

Setup `KArray` according to our [example](examples/KArrayExample). It will allow

you to use the `kcompile` tag in your functions.

The `kcompile` tag needs to be used along with the `extern` tag. Example:

```lean

import KArray

instance : Reflected Float := ⟨"double"⟩

@[kcompile, extern "c_my_fun"] def myFun (x : Float) := x

```

`KArray` will then generate a C file with a function called `c_my_fun`, using

`double` as the reflected type for Lean's `Float`.

You can now run the `kcompile` script to generate the C file:

```bash

$ lake script run kcompile

```

If you create other functions of change the ones tagged with `kcompile`, you

will need to run the script again.

After the C file has been generated and your `lakefile.lean` has been configured,

you're good to call

```bash

$ lake build

```

Which will generate the executable file for your application.