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‎.eslintignore

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dist
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node_modules
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coverage

‎.eslintrc.js

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/*
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👋 Hi! This file was autogenerated by tslint-to-eslint-config.
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https://github.com/typescript-eslint/tslint-to-eslint-config
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It represents the closest reasonable ESLint configuration to this
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project's original TSLint configuration.
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We recommend eventually switching this configuration to extend from
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the recommended rulesets in typescript-eslint.
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https://github.com/typescript-eslint/tslint-to-eslint-config/blob/master/docs/FAQs.md
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Happy linting! 💖
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*/
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module.exports = {
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"env": {
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"es6": true,
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"node": true
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},
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"extends": [
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"plugin:@typescript-eslint/recommended",
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"plugin:@typescript-eslint/recommended-requiring-type-checking"
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],
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"parser": "@typescript-eslint/parser",
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"parserOptions": {
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"project": "tsconfig.json",
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"sourceType": "module"
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},
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"plugins": [
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"@typescript-eslint"
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]
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};

‎.gitattributes

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*.sol linguist-language=Solidity

‎.gitignore

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# See https://help.github.com/ignore-files/ for more about ignoring files.
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# documentation
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docs/
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# truffle build directory
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build/
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# misc
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.DS_Store
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.env.local
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.env.development.local
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.env.test.local
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.env.production.local
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# Logs
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*.log
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npm-debug.log*
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yarn-debug.log*
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yarn-error.log*
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logs/
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# lol macs
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.DS_Store/
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# Runtime data
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pids
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*.pid
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*.seed
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*.pid.lock
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# Coverage directory used by tools like istanbul
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coverage/
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coverage.json
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coverageEnv
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# Directory for instrumented libs generated by jscoverage/JSCover
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lib-cov
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# Coverage directory used by tools like istanbul
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coverage
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coverage.json
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# nyc test coverage
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.nyc_output
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# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
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.grunt
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# Bower dependency directory (https://bower.io/)
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bower_components
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# node-waf configuration
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.lock-wscript
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# Compiled binary addons (https://nodejs.org/api/addons.html)
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build/Release
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# Dependency directories
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node_modules/
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jspm_packages/
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# TypeScript v1 declaration files
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typings/
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# Optional npm cache directory
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.npm
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# Optional eslint cache
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.eslintcache
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# Optional REPL history
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.node_repl_history
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# Output of 'npm pack'
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*.tgz
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# Yarn Integrity file
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.yarn-integrity
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# dotenv environment variables file
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.env
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.env.test
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# parcel-bundler cache (https://parceljs.org/)
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.cache
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# next.js build output
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.next
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# nuxt.js build output
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.nuxt
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# vuepress build output
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.vuepress/dist
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# Serverless directories
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.serverless/
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# FuseBox cache
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.fusebox/
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# DynamoDB Local files
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.dynamodb/
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# the .secret
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.secret
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# oz session
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.openzeppelin/.session
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# coverage
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.coverage_artifacts/
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.coverage_contracts/
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# network
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**/db/geth
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**/db/history
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**/db_ganache/
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# ignore types
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types/
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geth/

‎.solcover.js

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module.exports = {
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skipFiles: [
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]
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}

‎.soliumignore

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node_modules/*
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contracts/Migrations.sol

‎.soliumrc.json

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{
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"extends": "solium:all",
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"plugins": [
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"security"
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],
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"rules": {
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"error-reason": "off",
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"indentation": [
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"error",
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4
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],
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"lbrace": "off",
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"linebreak-style": [
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"error",
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"unix"
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],
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"max-len": [
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"error",
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79
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],
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"no-constant": [
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"error"
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],
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"no-empty-blocks": "off",
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"quotes": [
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"error",
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"double"
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],
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"uppercase": "off",
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"visibility-first": "error",
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"security/enforce-explicit-visibility": [
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"error"
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],
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"security/no-block-members": [
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"warning"
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],
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"security/no-inline-assembly": [
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"warning"
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],
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"imports-on-top": "warning",
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"variable-declarations": "warning",
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"array-declarations": "warning",
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"operator-whitespace": "warning",
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"function-whitespace": "warning",
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"semicolon-whitespace": "warning",
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"comma-whitespace": "warning",
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"conditionals-whitespace": "warning",
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"arg-overflow": [
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"warning",
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3
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]
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}
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}

‎README.md

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# DecimalMath
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Smart contract implementing fixed point math operations using structs for type checking.
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## Contributing
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Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.
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Please make sure to update tests as appropriate.
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## License
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[GPL-3.0](LICENSE)

‎codechecks.yml

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checks:
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- name: eth-gas-reporter/codechecks

‎contracts/DecimalMath.sol

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// SPDX-License-Identifier: GPL-3.0-or-later
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pragma solidity ^0.6.10;
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pragma experimental ABIEncoderV2;
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import "@openzeppelin/contracts/math/SafeMath.sol";
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/// @dev Implements simple fixed point math mul and div operations for 27 decimals.
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contract DecimalMath {
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using SafeMath for uint256;
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uint256 constant public UNIT = 1000000000000000000000000000;
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struct UFixed {
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uint256 value;
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}
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/// @dev Creates a fixed point number from an unsigend integer. `toUFixed(1) = 10^-27`
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/// Converting from fixed point to integer
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function toUFixed(uint256 x) public pure returns (UFixed memory) {
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return UFixed({
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value: x
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});
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}
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/// @dev Multiplies x and y.
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/// @param x A fixed point number.
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/// @param y An unsigned integer.
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/// @return A fixed point number.
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function muld(UFixed memory x, uint256 y) public pure returns (UFixed memory) {
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return UFixed({
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value: x.value.mul(y).div(UNIT)
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});
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}
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/// @dev Multiplies x and y.
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/// @param x A fixed point number.
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/// @param y A fixed point number.
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/// @return A fixed point number.
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function muld(UFixed memory x, UFixed memory y) public pure returns (UFixed memory) {
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return muld(x, y.value);
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}
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/// @dev Divides x by y.
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/// @param x A fixed point number.
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/// @param y An unsigned integer.
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/// @return A fixed point number.
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function divd(UFixed memory x, uint256 y) public pure returns (UFixed memory) {
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return UFixed({
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value: x.value.mul(UNIT).div(y)
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});
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}
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/// @dev Divides x by y.
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/// @param x A fixed point number.
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/// @param y A fixed point number.
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/// @return A fixed point number.
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function divd(UFixed memory x, UFixed memory y) public pure returns (UFixed memory) {
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return divd(x, y.value);
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}
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/// @dev Adds x and y.
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/// @param x A fixed point number.
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/// @param y A fixed point number.
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/// @return A fixed point number.
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function addd(UFixed memory x, UFixed memory y) public pure returns (UFixed memory) {
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return UFixed({
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value: x.value.add(y.value)
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});
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}
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/// @dev Subtracts x and y.
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/// @param x A fixed point number.
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/// @param y A fixed point number.
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/// @return A fixed point number.
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function subd(UFixed memory x, UFixed memory y) public pure returns (UFixed memory) {
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return UFixed({
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value: x.value.sub(y.value)
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});
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}
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/// @dev Divides x between y, rounding up to the closest representable number.
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/// @param x A fixed point number.
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/// @param y An unsigned integer.
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/// @return A fixed point number.
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function divdrup(UFixed memory x, uint256 y) public pure returns (UFixed memory)
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{
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uint256 z = x.value.mul(10000000000000000000000000000).div(y); // RAY * 10
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if (z % 10 > 0) return UFixed({ value: z / 10 + 1 });
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else return UFixed({ value: z / 10 });
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}
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/// @dev Divides x between y, rounding up to the closest representable number.
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/// @param x A fixed point number.
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/// @param y A fixed point number.
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/// @return A fixed point number.
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function divdrup(UFixed memory x, UFixed memory y) public pure returns (UFixed memory)
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{
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return divdrup(x, y.value);
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}
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}

‎contracts/Migrations.sol

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// SPDX-License-Identifier: GPL-3.0-or-later
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pragma solidity ^0.6.10;
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contract Migrations {
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address public owner;
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uint public last_completed_migration;
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constructor() public {
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owner = msg.sender;
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}
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modifier restricted() {
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if (msg.sender == owner)
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_;
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}
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function setCompleted(uint completed) public restricted {
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last_completed_migration = completed;
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}
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function upgrade(address new_address) public restricted {
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Migrations upgraded = Migrations(new_address);
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upgraded.setCompleted(last_completed_migration);
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}
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}

‎migrations/1_initial_migration.js

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const Migrations = artifacts.require('./Migrations.sol');
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module.exports = (deployer) => {
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deployer.deploy(Migrations);
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};

‎migrations/2_deploy_contracts.js

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const DecimalMath = artifacts.require('./DecimalMath.sol');
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module.exports = async (deployer, network, accounts) => {
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await deployer.deploy(DecimalMath);
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}

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