Solidity, the Smart Contract Programming Language
Go to file
Daniel Kirchner 5192965229
Merge pull request #13460 from Pospelove/patch-1
Set CMake policy `CMP0115` to `NEW`: "Source file extensions must be explicit"
2022-09-01 13:07:01 +02:00
.circleci disable SMT tests for the clang job 2022-08-30 11:51:59 +02:00
.github Update issue selector, and remove auto labeling 2022-08-30 10:05:49 +02:00
cmake Improve comment on CMP0115 2022-08-31 12:12:15 +03:00
docs Merge pull request #13387 from taylorferran/improve-voting-example 2022-08-30 10:41:41 -03:00
libevmasm Add std:: qualifier to move() calls 2022-08-30 11:12:15 +02:00
liblangutil Fix spelling mistakes and CI spellcheck job 2022-08-18 14:38:19 +02:00
libsmtutil Add std:: qualifier to move() calls 2022-08-30 11:12:15 +02:00
libsolc Add std:: qualifier to move() calls 2022-08-30 11:12:15 +02:00
libsolidity Merge pull request #13428 from ethereum/qualify-move 2022-08-30 11:57:54 +02:00
libsolutil Add std:: qualifier to move() calls 2022-08-30 11:12:15 +02:00
libyul Add std:: qualifier to move() calls 2022-08-30 11:12:15 +02:00
scripts Update z3 to 4.11.0 2022-08-30 12:52:22 +02:00
snap Snap: update z3 2021-10-06 18:00:07 -06:00
solc Document in `solc --help usage of --metadata` better. 2022-08-15 12:57:40 +02:00
test Merge pull request #13439 from ethereum/z3_4_8_11_smt_tests 2022-08-30 12:51:13 +02:00
tools Add std:: qualifier to move() calls 2022-08-30 11:12:15 +02:00
.clang-format Improved .clang_format file. 2020-03-22 22:23:29 +01:00
.dockerignore adds .dockerignore file 2018-06-26 12:21:04 +02:00
.editorconfig .editorconfig: Indentation rules for .yul 2020-11-10 23:31:05 +01:00
.gitattributes Create .gitattributes 2018-02-20 18:41:02 -05:00
.gitignore Little enhancements to the ppa release script 2022-08-11 18:36:07 +02:00
Changelog.md lsp: Always load all solidity files from project for analyzing. 2022-08-22 12:49:04 +02:00
CMakeLists.txt Update docker images and tests 2022-08-30 11:51:59 +02:00
CODE_OF_CONDUCT.md Rename CONDUCT.md to CODE_OF_CONDUCT.md so that Github picks it up 2018-08-01 22:38:58 +01:00
codecov.yml Fix patch coverage settings 2019-02-20 16:09:00 +01:00
CODING_STYLE.md Increase use of C++ constexpr constant expressions in code base as described in issue #7720 2021-08-31 15:03:59 +02:00
CONTRIBUTING.md Replace links to readthedocs.io with ones using the new domain 2020-11-18 15:20:34 +01:00
LICENSE.txt Align license to those in file headers. 2016-06-08 22:57:30 +02:00
README.md README.md: added comma 2022-08-31 15:01:46 +02:00
ReleaseChecklist.md ReleaseChecklist: Use the correct name for c_release_binaries 2022-06-15 18:16:06 +02:00
SECURITY.md Replace links to readthedocs.io with ones using the new domain 2020-11-18 15:20:34 +01:00

The Solidity Contract-Oriented Programming Language

Matrix Chat Gitter Chat Solidity Forum Twitter Follow Mastodon Follow

You can talk to us on Gitter and Matrix, tweet at us on Twitter or create a new topic in the Solidity forum. Questions, feedback, and suggestions are welcome!

Solidity is a statically typed, contract-oriented, high-level language for implementing smart contracts on the Ethereum platform.

For a good overview and starting point, please check out the official Solidity Language Portal.

Table of Contents

Background

Solidity is a statically-typed curly-braces programming language designed for developing smart contracts that run on the Ethereum Virtual Machine. Smart contracts are programs that are executed inside a peer-to-peer network where nobody has special authority over the execution, and thus they allow anyone to implement tokens of value, ownership, voting, and other kinds of logic.

When deploying contracts, you should use the latest released version of Solidity. This is because breaking changes, as well as new features and bug fixes, are introduced regularly. We currently use a 0.x version number to indicate this fast pace of change.

Build and Install

Instructions about how to build and install the Solidity compiler can be found in the Solidity documentation.

Example

A "Hello World" program in Solidity is of even less use than in other languages, but still:

// SPDX-License-Identifier: MIT
pragma solidity >=0.6.0 <0.9.0;

contract HelloWorld {
    function helloWorld() external pure returns (string memory) {
        return "Hello, World!";
    }
}

To get started with Solidity, you can use Remix, which is a browser-based IDE. Here are some example contracts:

  1. Voting
  2. Blind Auction
  3. Safe remote purchase
  4. Micropayment Channel

Documentation

The Solidity documentation is hosted at Read the docs.

Development

Solidity is still under development. Contributions are always welcome! Please follow the Developers Guide if you want to help.

You can find our current feature and bug priorities for forthcoming releases in the projects section.

Maintainers

License

Solidity is licensed under GNU General Public License v3.0.

Some third-party code has its own licensing terms.

Security

The security policy may be found here.