Solidity, the Smart Contract Programming Language
Go to file
2020-12-12 04:52:16 +01:00
.circleci Allow loading Z3 dynamically at runtime. 2020-12-10 16:47:47 +01:00
.github Drop direct support for Ubuntu 18.04 and switch to static PPA releases for it. 2020-12-07 18:18:41 +01:00
cmake Enable more C++ compiler warnings 2020-12-10 21:03:58 +00:00
docs Allow loading Z3 dynamically at runtime. 2020-12-10 16:47:47 +01:00
libevmasm Enable the -Wconversion warning 2020-12-08 16:45:24 +00:00
liblangutil Enable more C++ compiler warnings 2020-12-10 21:03:58 +00:00
libsmtutil Allow loading Z3 dynamically at runtime. 2020-12-10 16:47:47 +01:00
libsolc Add SPDX license identifier if not present already in source file 2020-07-17 20:24:12 +05:30
libsolidity Merge pull request #10567 from blishko/unary-operators-fix 2020-12-11 18:52:12 +01:00
libsolutil Add comprehensive tests for FixedHash 2020-12-11 12:20:37 +00:00
libyul Enable more C++ compiler warnings 2020-12-10 21:03:58 +00:00
scripts docs_version_pragma_check.sh: Fix bad variable name making the script skip ^ and >= pragmas 2020-12-12 04:52:16 +01:00
snap Add wget to the build packages of the snap 2019-08-26 06:07:54 -06:00
solc Enable more C++ compiler warnings 2020-12-10 21:03:58 +00:00
test Merge pull request #10567 from blishko/unary-operators-fix 2020-12-11 18:52:12 +01:00
tools Enable the -Wconversion warning 2020-12-08 16:45:24 +00:00
.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 Initial docker image creation workflows. 2020-07-14 19:00:48 -05:00
Changelog.md [SMTChecker] Adding unary increment and decrement as under/overflow verification targets for the CHC engine 2020-12-11 17:41:50 +01:00
CMakeLists.txt Allow loading Z3 dynamically at runtime. 2020-12-10 16:47:47 +01:00
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 Update HTTP -> HTTPS 2020-10-18 01:00:38 -04:00
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 Replace links to readthedocs.io with ones using the new domain 2020-11-18 15:20:34 +01:00
ReleaseChecklist.md Drop direct support for Ubuntu 18.04 and switch to static PPA releases for it. 2020-12-07 18:18:41 +01:00
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

You can talk to us on solidity at https://gitter.im/ethereum/solidity. Questions, feedback, and suggestions are welcome!

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

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 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:

pragma solidity >=0.6.0 <0.8.0;

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.