commit 00e6a334973e2975488bb449e45cc3fd5ceb7b08
Author: Andy Pack <andy@sarsoo.xyz>
Date: Thu Feb 13 18:05:31 2025 +0000
initial commit
diff --git a/.gitea/workflows/build.yml b/.gitea/workflows/build.yml
new file mode 100644
index 0000000..56b86e6
--- /dev/null
+++ b/.gitea/workflows/build.yml
@@ -0,0 +1,31 @@
+name: Build Binaries
+
+on:
+ # Runs on pushes targeting the default branch
+ push:
+
+jobs:
+ # Build job
+ build:
+ name: Build & Test
+ runs-on: ubuntu-latest
+ steps:
+ - name: Checkout
+ uses: actions/checkout@v4
+ with:
+ github-server-url: https://gitea.sheep-ghoul.ts.net
+
+ - name: Install Rust
+ uses: actions-rs/toolchain@v1
+ with:
+ toolchain: stable
+
+ - name: Cargo Build
+ uses: actions-rs/cargo@v1
+ with:
+ command: build
+
+ - name: Cargo Test
+ uses: actions-rs/cargo@v1
+ with:
+ command: test
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
new file mode 100644
index 0000000..8f4cea8
--- /dev/null
+++ b/.github/workflows/build.yml
@@ -0,0 +1,88 @@
+name: Build Binaries
+
+on:
+ # Runs on pushes targeting the default branch
+ push:
+
+# Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages
+permissions:
+ contents: read
+ pages: write
+ id-token: write
+
+# Allow only one concurrent deployment, skipping runs queued between the run in-progress and latest queued.
+# However, do NOT cancel in-progress runs as we want to allow these production deployments to complete.
+concurrency:
+ group: "pages"
+ cancel-in-progress: false
+
+jobs:
+ # Build job
+ build:
+ name: Build & Test
+ runs-on: ubuntu-latest
+ steps:
+ - name: Checkout
+ uses: actions/checkout@v3
+
+ - name: Install Rust
+ uses: actions-rs/toolchain@v1
+ with:
+ toolchain: stable
+
+ - name: Cargo Build
+ uses: actions-rs/cargo@v1
+ with:
+ command: build
+
+ - name: Cargo Test
+ uses: actions-rs/cargo@v1
+ with:
+ command: test
+
+ doc:
+ name: Build Documentation
+ environment:
+ name: github-pages
+ url: ${{ steps.deployment.outputs.page_url }}
+ runs-on: ubuntu-latest
+ needs: [ build ] # for ignoring bad builds
+ if: github.event_name == 'push' && github.ref == 'refs/heads/master'
+ steps:
+ - name: Checkout
+ uses: actions/checkout@v4
+
+ - name: Setup Pages
+ uses: actions/configure-pages@v4
+
+ - name: Install Rust
+ uses: actions-rs/toolchain@v1
+ with:
+ toolchain: stable
+
+ - name: Build Docs
+ run: cargo doc --no-deps --document-private-items
+
+ - name: Add redirect
+ run: echo '<meta http-equiv="refresh" content="0;url=finlib/index.html">' > target/doc/index.html
+
+ - name: Remove lock file
+ run: rm target/doc/.lock
+
+ - name: Upload artifact
+ uses: actions/upload-pages-artifact@v3
+ with:
+ # Upload entire repository
+ path: './target/doc'
+
+ deploy:
+ name: Deploy Documentation
+ environment:
+ name: github-pages
+ url: ${{ steps.deployment.outputs.page_url }}
+ runs-on: ubuntu-latest
+ needs: doc
+ steps:
+ - name: Deploy to GitHub Pages
+ id: deployment
+ uses: actions/deploy-pages@v4
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..710eac3
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,7 @@
+/target
+bin
+obj
+.venv
+.idea
+/finlib-wasm/pkg
+/FinLib.NET/FinLib.sln.DotSettings.user
diff --git a/Cargo.lock b/Cargo.lock
new file mode 100644
index 0000000..3754019
--- /dev/null
+++ b/Cargo.lock
@@ -0,0 +1,850 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
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+ "windows_i686_gnu",
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+dependencies = [
+ "memchr",
+]
+
+[[package]]
+name = "wit-bindgen-rt"
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+source = "registry+https://github.com/rust-lang/crates.io-index"
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diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..9666c80
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,29 @@
+[workspace]
+resolver = "2"
+
+members = [
+ "finlib",
+ "finlib-ffi",
+ "finlib-wasm",
+ "pyfinlib"
+]
+
+default-members = [
+ "finlib",
+ "finlib-ffi"
+]
+
+[workspace.package]
+version = "0.0.1"
+authors = ["sarsoo <andy@sarsoo.xyz>"]
+edition = "2021"
+
+[workspace.dependencies.pyo3]
+version = "0.23.4"
+# "abi3-py38" tells pyo3 (and maturin) to build using the stable ABI with minimum Python version 3.8
+features = ["extension-module", "abi3-py38"]
+
+[profile.release]
+# Tell `rustc` to optimize for small code size.
+opt-level = "s"
+lto = true
\ No newline at end of file
diff --git a/FinLib.NET/FinLib.Test/Basic.cs b/FinLib.NET/FinLib.Test/Basic.cs
new file mode 100644
index 0000000..d23738c
--- /dev/null
+++ b/FinLib.NET/FinLib.Test/Basic.cs
@@ -0,0 +1,16 @@
+namespace FinLib.Test;
+using FluentAssertions;
+
+public class Tests
+{
+ [SetUp]
+ public void Setup()
+ {
+ }
+
+ [Test]
+ public void TestAdd()
+ {
+ FinLib.Add(10, 10).Should().Be(20);
+ }
+}
\ No newline at end of file
diff --git a/FinLib.NET/FinLib.Test/FinLib.Test.csproj b/FinLib.NET/FinLib.Test/FinLib.Test.csproj
new file mode 100644
index 0000000..710a575
--- /dev/null
+++ b/FinLib.NET/FinLib.Test/FinLib.Test.csproj
@@ -0,0 +1,28 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+ <PropertyGroup>
+ <TargetFramework>net9.0</TargetFramework>
+ <LangVersion>latest</LangVersion>
+ <ImplicitUsings>enable</ImplicitUsings>
+ <Nullable>enable</Nullable>
+ <IsPackable>false</IsPackable>
+ </PropertyGroup>
+
+ <ItemGroup>
+ <PackageReference Include="coverlet.collector" Version="6.0.2"/>
+ <PackageReference Include="FluentAssertions" Version="8.0.1" />
+ <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.11.1"/>
+ <PackageReference Include="NUnit" Version="4.2.2"/>
+ <PackageReference Include="NUnit.Analyzers" Version="4.3.0"/>
+ <PackageReference Include="NUnit3TestAdapter" Version="4.6.0"/>
+ </ItemGroup>
+
+ <ItemGroup>
+ <Using Include="NUnit.Framework"/>
+ </ItemGroup>
+
+ <ItemGroup>
+ <ProjectReference Include="..\FinLib\FinLib.csproj" />
+ </ItemGroup>
+
+</Project>
diff --git a/FinLib.NET/FinLib.sln b/FinLib.NET/FinLib.sln
new file mode 100644
index 0000000..524b55e
--- /dev/null
+++ b/FinLib.NET/FinLib.sln
@@ -0,0 +1,22 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "FinLib", "FinLib\FinLib.csproj", "{3202C5E1-CD3C-4B3C-AA5D-C3C81F06D418}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "FinLib.Test", "FinLib.Test\FinLib.Test.csproj", "{148E024C-07D0-4DC0-A3E2-A146E709897B}"
+EndProject
+Global
+ GlobalSection(SolutionConfigurationPlatforms) = preSolution
+ Debug|Any CPU = Debug|Any CPU
+ Release|Any CPU = Release|Any CPU
+ EndGlobalSection
+ GlobalSection(ProjectConfigurationPlatforms) = postSolution
+ {3202C5E1-CD3C-4B3C-AA5D-C3C81F06D418}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+ {3202C5E1-CD3C-4B3C-AA5D-C3C81F06D418}.Debug|Any CPU.Build.0 = Debug|Any CPU
+ {3202C5E1-CD3C-4B3C-AA5D-C3C81F06D418}.Release|Any CPU.ActiveCfg = Release|Any CPU
+ {3202C5E1-CD3C-4B3C-AA5D-C3C81F06D418}.Release|Any CPU.Build.0 = Release|Any CPU
+ {148E024C-07D0-4DC0-A3E2-A146E709897B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+ {148E024C-07D0-4DC0-A3E2-A146E709897B}.Debug|Any CPU.Build.0 = Debug|Any CPU
+ {148E024C-07D0-4DC0-A3E2-A146E709897B}.Release|Any CPU.ActiveCfg = Release|Any CPU
+ {148E024C-07D0-4DC0-A3E2-A146E709897B}.Release|Any CPU.Build.0 = Release|Any CPU
+ EndGlobalSection
+EndGlobal
diff --git a/FinLib.NET/FinLib/FinLib.cs b/FinLib.NET/FinLib/FinLib.cs
new file mode 100644
index 0000000..de1a631
--- /dev/null
+++ b/FinLib.NET/FinLib/FinLib.cs
@@ -0,0 +1,9 @@
+namespace FinLib;
+
+public static class FinLib
+{
+ public static ulong Add(ulong a, ulong b)
+ {
+ return NativeMethods.add(a, b);
+ }
+}
\ No newline at end of file
diff --git a/FinLib.NET/FinLib/FinLib.csproj b/FinLib.NET/FinLib/FinLib.csproj
new file mode 100644
index 0000000..c7e30a4
--- /dev/null
+++ b/FinLib.NET/FinLib/FinLib.csproj
@@ -0,0 +1,33 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+ <PropertyGroup>
+ <TargetFrameworks>netstandard2.0</TargetFrameworks>
+ <LangVersion>latest</LangVersion>
+ <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
+ </PropertyGroup>
+
+ <PropertyGroup>
+ <PackageId>FinLib.NET</PackageId>
+ <Version>0.0.1</Version>
+ <Authors>sarsoo</Authors>
+ </PropertyGroup>
+
+ <ItemGroup Condition=" '$(Configuration)' == 'Debug' ">
+ <Content Include="..\..\target\debug\libfinlib_ffi.dylib">
+ <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+ </Content>
+ </ItemGroup>
+
+ <ItemGroup Condition=" '$(Configuration)' == 'Release' ">
+ <Content Include="..\..\target\release\libfinlib_ffi.dylib">
+ <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+ </Content>
+ </ItemGroup>
+
+ <ItemGroup>
+ <PackageReference Include="csbindgen" Version="1.9.3">
+ <PrivateAssets>all</PrivateAssets>
+ <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+ </PackageReference>
+ </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/FinLib.NET/FinLib/NativeMethods.cs b/FinLib.NET/FinLib/NativeMethods.cs
new file mode 100644
index 0000000..038515a
--- /dev/null
+++ b/FinLib.NET/FinLib/NativeMethods.cs
@@ -0,0 +1,9 @@
+using GroupedNativeMethodsGenerator;
+
+namespace FinLib;
+
+[GroupedNativeMethods]
+internal static unsafe partial class NativeMethods
+{
+
+}
\ No newline at end of file
diff --git a/FinLib.NET/FinLib/NativeMethods.g.cs b/FinLib.NET/FinLib/NativeMethods.g.cs
new file mode 100644
index 0000000..6a5d1a4
--- /dev/null
+++ b/FinLib.NET/FinLib/NativeMethods.g.cs
@@ -0,0 +1,30 @@
+// <auto-generated>
+// This code is generated by csbindgen.
+// DON'T CHANGE THIS DIRECTLY.
+// </auto-generated>
+#pragma warning disable CS8500
+#pragma warning disable CS8981
+using System;
+using System.Runtime.InteropServices;
+
+
+namespace FinLib
+{
+ internal static unsafe partial class NativeMethods
+ {
+ const string __DllName = "libfinlib_ffi";
+
+
+
+ [DllImport(__DllName, EntryPoint = "add", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
+ internal static extern ulong add(ulong left, ulong right);
+
+ [DllImport(__DllName, EntryPoint = "interest_compound", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
+ internal static extern float interest_compound(float principal, float rate, float time, float n);
+
+
+ }
+
+
+
+}
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..b9eeacd
--- /dev/null
+++ b/README.md
@@ -0,0 +1,18 @@
+# finlib
+
+# FFI
+
+## Python
+
+```
+cd pyfinlib
+source .venv/bin/activate
+maturin develop
+```
+
+## WASM
+
+```
+cd finlib-wasm
+wasm-pack build
+```
\ No newline at end of file
diff --git a/finlib-cpp/finlib-native.h b/finlib-cpp/finlib-native.h
new file mode 100644
index 0000000..3f3c94b
--- /dev/null
+++ b/finlib-cpp/finlib-native.h
@@ -0,0 +1,26 @@
+#pragma once
+
+/* Generated with cbindgen:0.28.0 */
+
+/* Warning, this file is autogenerated by cbindgen. Don't modify this manually. */
+
+#include <cstdarg>
+#include <cstddef>
+#include <cstdint>
+#include <cstdlib>
+#include <ostream>
+#include <new>
+
+
+namespace finlib {
+
+
+extern "C" {
+
+uint64_t add(uint64_t left, uint64_t right);
+
+float interest_compound(float principal, float rate, float time, float n);
+
+} // extern "C"
+
+} // namespace finlib
diff --git a/finlib-ffi/Cargo.toml b/finlib-ffi/Cargo.toml
new file mode 100644
index 0000000..a9dbd41
--- /dev/null
+++ b/finlib-ffi/Cargo.toml
@@ -0,0 +1,15 @@
+[package]
+name = "finlib-ffi"
+version.workspace = true
+authors.workspace = true
+edition.workspace = true
+
+[lib]
+crate-type = ["cdylib"]
+
+[dependencies]
+finlib = { path = "../finlib" }
+
+[build-dependencies]
+cbindgen = "0.28.0"
+csbindgen = "1.8.0"
\ No newline at end of file
diff --git a/finlib-ffi/build.rs b/finlib-ffi/build.rs
new file mode 100644
index 0000000..949bf2d
--- /dev/null
+++ b/finlib-ffi/build.rs
@@ -0,0 +1,26 @@
+extern crate cbindgen;
+extern crate csbindgen;
+
+use std::env;
+use cbindgen::Config;
+
+fn main() {
+ let crate_dir = env::var("CARGO_MANIFEST_DIR").unwrap();
+
+ let config = Config::from_file("./cbindgen.toml").unwrap();
+
+ cbindgen::Builder::new()
+ .with_crate(crate_dir)
+ .with_config(config)
+ .generate()
+ .expect("Unable to generate bindings")
+ .write_to_file("../finlib-cpp/finlib-native.h");
+
+ csbindgen::Builder::default()
+ .input_extern_file("src/lib.rs")
+ .input_extern_file("../finlib/src/lib.rs")
+ .csharp_dll_name("libfinlib_ffi")
+ .csharp_namespace("FinLib")
+ .generate_csharp_file("../FinLib.NET/FinLib/NativeMethods.g.cs")
+ .unwrap();
+}
\ No newline at end of file
diff --git a/finlib-ffi/cbindgen.toml b/finlib-ffi/cbindgen.toml
new file mode 100644
index 0000000..cd8eb52
--- /dev/null
+++ b/finlib-ffi/cbindgen.toml
@@ -0,0 +1,159 @@
+# This is a template cbindgen.toml file with all of the default values.
+# Some values are commented out because their absence is the real default.
+#
+# See https://github.com/mozilla/cbindgen/blob/master/docs.md#cbindgentoml
+# for detailed documentation of every option here.
+
+
+
+language = "C++"
+
+
+
+############## Options for Wrapping the Contents of the Header #################
+
+# header = "/* Text to put at the beginning of the generated file. Probably a license. */"
+# trailer = "/* Text to put at the end of the generated file */"
+# include_guard = "my_bindings_h"
+pragma_once = true
+autogen_warning = "/* Warning, this file is autogenerated by cbindgen. Don't modify this manually. */"
+include_version = true
+namespace = "finlib"
+#namespaces = []
+using_namespaces = []
+sys_includes = []
+includes = []
+no_includes = false
+# cpp_compat = true
+after_includes = ""
+
+
+
+
+############################ Code Style Options ################################
+
+braces = "NextLine"
+line_length = 100
+tab_width = 2
+documentation = true
+documentation_style = "auto"
+documentation_length = "full"
+line_endings = "LF" # also "CR", "CRLF", "Native"
+
+
+
+
+############################# Codegen Options ##################################
+
+style = "both"
+sort_by = "Name" # default for `fn.sort_by` and `const.sort_by`
+usize_is_size_t = true
+
+
+
+[defines]
+# "target_os = freebsd" = "DEFINE_FREEBSD"
+# "feature = serde" = "DEFINE_SERDE"
+
+
+
+[export]
+include = []
+exclude = []
+# prefix = "CAPI_"
+item_types = []
+renaming_overrides_prefixing = false
+
+
+
+[export.rename]
+
+
+
+[export.body]
+
+
+[export.mangle]
+
+
+[fn]
+rename_args = "None"
+# must_use = "MUST_USE_FUNC"
+# deprecated = "DEPRECATED_FUNC"
+# deprecated_with_note = "DEPRECATED_FUNC_WITH_NOTE"
+# no_return = "NO_RETURN"
+# prefix = "START_FUNC"
+# postfix = "END_FUNC"
+args = "auto"
+sort_by = "Name"
+
+
+
+
+[struct]
+rename_fields = "PascalCase"
+# must_use = "MUST_USE_STRUCT"
+# deprecated = "DEPRECATED_STRUCT"
+# deprecated_with_note = "DEPRECATED_STRUCT_WITH_NOTE"
+derive_constructor = false
+derive_eq = false
+derive_neq = false
+derive_lt = false
+derive_lte = false
+derive_gt = false
+derive_gte = false
+
+
+
+
+[enum]
+rename_variants = "None"
+# must_use = "MUST_USE_ENUM"
+# deprecated = "DEPRECATED_ENUM"
+# deprecated_with_note = "DEPRECATED_ENUM_WITH_NOTE"
+add_sentinel = false
+prefix_with_name = false
+derive_helper_methods = false
+derive_const_casts = false
+derive_mut_casts = false
+# cast_assert_name = "ASSERT"
+derive_tagged_enum_destructor = false
+derive_tagged_enum_copy_constructor = false
+enum_class = true
+private_default_tagged_enum_constructor = false
+
+
+
+
+[const]
+allow_static_const = true
+allow_constexpr = true
+sort_by = "Name"
+
+
+
+
+[macro_expansion]
+bitflags = false
+
+
+
+
+
+
+############## Options for How Your Rust library Should Be Parsed ##############
+
+[parse]
+parse_deps = false
+# include = []
+exclude = []
+clean = false
+extra_bindings = []
+
+
+
+[parse.expand]
+crates = []
+all_features = false
+default_features = true
+features = []
\ No newline at end of file
diff --git a/finlib-ffi/src/lib.rs b/finlib-ffi/src/lib.rs
new file mode 100644
index 0000000..3b11c1e
--- /dev/null
+++ b/finlib-ffi/src/lib.rs
@@ -0,0 +1,9 @@
+#[no_mangle]
+pub extern "C" fn add(left: u64, right: u64) -> u64 {
+ finlib::add(left, right)
+}
+
+#[no_mangle]
+pub extern "C" fn interest_compound(principal: f32, rate: f32, time: f32, n: f32) -> f32 {
+ finlib::interest::compound(principal, rate, time, n)
+}
\ No newline at end of file
diff --git a/finlib-wasm/Cargo.toml b/finlib-wasm/Cargo.toml
new file mode 100644
index 0000000..2b8b9ed
--- /dev/null
+++ b/finlib-wasm/Cargo.toml
@@ -0,0 +1,24 @@
+[package]
+name = "finlib-wasm"
+version.workspace = true
+authors.workspace = true
+edition.workspace = true
+
+[lib]
+crate-type = ["cdylib", "rlib"]
+
+[features]
+default = ["console_error_panic_hook"]
+
+[dependencies]
+wasm-bindgen = "0.2.100"
+finlib = { path = "../finlib" }
+
+# The `console_error_panic_hook` crate provides better debugging of panics by
+# logging them with `console.error`. This is great for development, but requires
+# all the `std::fmt` and `std::panicking` infrastructure, so isn't great for
+# code size when deploying.
+console_error_panic_hook = { version = "0.1.7", optional = true }
+
+[dev-dependencies]
+wasm-bindgen-test = "0.3.50"
\ No newline at end of file
diff --git a/finlib-wasm/js/index.js b/finlib-wasm/js/index.js
new file mode 100644
index 0000000..e69de29
diff --git a/finlib-wasm/js/package.json b/finlib-wasm/js/package.json
new file mode 100644
index 0000000..fbf570b
--- /dev/null
+++ b/finlib-wasm/js/package.json
@@ -0,0 +1,14 @@
+{
+ "name": "finlib",
+ "version": "1.0.0",
+ "main": "index.js",
+ "scripts": {
+ "test": "echo \"Error: no test specified\" && exit 1"
+ },
+ "dependencies": {
+ "draught": "file:../pkg"
+ },
+ "author": "",
+ "license": "ISC",
+ "description": ""
+}
diff --git a/finlib-wasm/src/lib.rs b/finlib-wasm/src/lib.rs
new file mode 100644
index 0000000..985dde6
--- /dev/null
+++ b/finlib-wasm/src/lib.rs
@@ -0,0 +1,11 @@
+use wasm_bindgen::prelude::wasm_bindgen;
+
+#[wasm_bindgen]
+pub fn add(left: u64, right: u64) -> u64 {
+ finlib::add(left, right)
+}
+
+#[wasm_bindgen]
+pub fn compound(principal: f32, rate: f32, time: f32, n: f32) -> f32 {
+ finlib::interest::compound(principal, rate, time, n)
+}
\ No newline at end of file
diff --git a/finlib/Cargo.toml b/finlib/Cargo.toml
new file mode 100644
index 0000000..9fa3e1b
--- /dev/null
+++ b/finlib/Cargo.toml
@@ -0,0 +1,11 @@
+[package]
+name = "finlib"
+version.workspace = true
+authors.workspace = true
+edition.workspace = true
+
+[dependencies]
+pyo3 = { workspace = true, optional = true }
+
+[features]
+py = ["dep:pyo3"]
\ No newline at end of file
diff --git a/finlib/src/interest/mod.rs b/finlib/src/interest/mod.rs
new file mode 100644
index 0000000..9aa3d87
--- /dev/null
+++ b/finlib/src/interest/mod.rs
@@ -0,0 +1,22 @@
+
+pub fn compound(principal: f32, rate: f32, time: f32, n: f32) -> f32 {
+ principal * f32::powf( 1f32 + (rate / n), time * n)
+}
+/// https://www.thecalculatorsite.com/finance/calculators/compoundinterestcalculator.php
+
+#[cfg(test)]
+mod tests {
+ use super::*;
+
+ #[test]
+ fn annual_compound() {
+ let result = compound(100f32, 0.05f32, 1f32, 1f32);
+ assert_eq!(f32::round(result), 105f32);
+ }
+
+ #[test]
+ fn monthly_compound() {
+ let result = compound(100f32, 0.05f32, 1f32, 12f32);
+ assert_eq!(f32::round(result * 100f32) / 100f32, 105.12f32);
+ }
+}
diff --git a/finlib/src/lib.rs b/finlib/src/lib.rs
new file mode 100644
index 0000000..fb4057d
--- /dev/null
+++ b/finlib/src/lib.rs
@@ -0,0 +1,16 @@
+pub mod interest;
+
+pub fn add(left: u64, right: u64) -> u64 {
+ left + right
+}
+
+#[cfg(test)]
+mod tests {
+ use super::*;
+
+ #[test]
+ fn it_works() {
+ let result = add(2, 2);
+ assert_eq!(result, 4);
+ }
+}
diff --git a/pyfinlib/Cargo.toml b/pyfinlib/Cargo.toml
new file mode 100644
index 0000000..fad9f3e
--- /dev/null
+++ b/pyfinlib/Cargo.toml
@@ -0,0 +1,21 @@
+[package]
+name = "pyfinlib"
+version.workspace = true
+authors.workspace = true
+edition.workspace = true
+
+[lib]
+# The name of the native library. This is the name which will be used in Python to import the
+# library (i.e. `import string_sum`). If you change this, you must also change the name of the
+# `#[pymodule]` in `src/lib.rs`.
+name = "pyfinlib"
+# "cdylib" is necessary to produce a shared library for Python to import from.
+#
+# Downstream Rust code (including code in `bin/`, `examples/`, and `tests/`) will not be able
+# to `use string_sum;` unless the "rlib" or "lib" crate type is also included, e.g.:
+# crate-type = ["cdylib", "rlib"]
+crate-type = ["cdylib"]
+
+[dependencies]
+finlib = { path = "../finlib", features = ["py"] }
+pyo3 = { workspace = true }
\ No newline at end of file
diff --git a/pyfinlib/pyproject.toml b/pyfinlib/pyproject.toml
new file mode 100644
index 0000000..d0ddaa7
--- /dev/null
+++ b/pyfinlib/pyproject.toml
@@ -0,0 +1,7 @@
+[build-system]
+requires = ["maturin>=1.0,<2.0"]
+build-backend = "maturin"
+
+[tool.maturin]
+# "extension-module" tells pyo3 we want to build an extension module (skips linking against libpython.so)
+features = ["pyo3/extension-module"]
\ No newline at end of file
diff --git a/pyfinlib/requirements.txt b/pyfinlib/requirements.txt
new file mode 100644
index 0000000..c5c26ec
--- /dev/null
+++ b/pyfinlib/requirements.txt
@@ -0,0 +1 @@
+maturin==1.8.2
\ No newline at end of file
diff --git a/pyfinlib/src/lib.rs b/pyfinlib/src/lib.rs
new file mode 100644
index 0000000..883c922
--- /dev/null
+++ b/pyfinlib/src/lib.rs
@@ -0,0 +1,18 @@
+use pyo3::prelude::*;
+
+#[pyfunction]
+fn add(left: u64, right: u64) -> PyResult<u64> {
+ Ok(finlib::add(left, right))
+}
+
+#[pyfunction]
+pub fn compound(principal: f32, rate: f32, time: f32, n: f32) -> PyResult<f32> {
+ Ok(finlib::interest::compound(principal, rate, time, n))
+}
+
+#[pymodule]
+fn pyfinlib(m: &Bound<'_, PyModule>) -> PyResult<()> {
+ m.add_function(wrap_pyfunction!(add, m)?)?;
+ m.add_function(wrap_pyfunction!(compound, m)?)?;
+ Ok(())
+}
\ No newline at end of file