Summary of the symbols in the Ethereum Yellow Paper.
Can be used as a reference and support for building and Ethereum client.
| Symbol | Symbol name (in Math or plain english) | Meaning in the yellow paper |
|---|---|---|
 |
mu | Machine state |
 |
sigma | World State |
Jean Cvllr CJ42
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| { | |
| "author" : "Jean Cavallera", | |
| "details" : "All function calls are currently implemented without side effects", | |
| "methods" : | |
| { | |
| "calculateHypothenuse(uint256,uint256)" : | |
| { | |
| "details" : "Not working as it returns integers and not float", | |
| "params" : | |
| { |
CJ42
/ .deps...npm...@openzeppelin...contracts...utils...cryptography...ECDSA.sol
Created
August 27, 2021 10:53
Created using remix-ide: Realtime Ethereum Contract Compiler and Runtime. Load this file by pasting this gists URL or ID at https://remix.ethereum.org/#version=soljson-v0.8.4+commit.c7e474f2.js&optimize=false&runs=200&gist=
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| // SPDX-License-Identifier: MIT | |
| pragma solidity ^0.8.0; | |
| /** | |
| * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations. | |
| * | |
| * These functions can be used to verify that a message was signed by the holder | |
| * of the private keys of a given address. | |
| */ |
CJ42
/ Ethereum-Yellow-Paper-Symbols.md
Last active
March 16, 2023 15:54
Ethereum Yellow Paper - Symbols Summary
CJ42
/ Sablier.sol
Created
April 12, 2022 05:13
Brief example from Sablier protocol to show one line if statements in Solidity
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| pragma solidity =0.5.17; | |
| // import statements ... | |
| /** | |
| * @title Sablier | |
| * @author Sablier | |
| * @notice Money streaming. | |
| */ | |
| contract Sablier is ISablier, ReentrancyGuard, CarefulMath { |
CJ42
/ Sablier.sol
Created
April 12, 2022 06:13
Example from Sablier to explain external calls with if statements
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| pragma solidity =0.5.17; | |
| // import statements (omitted for brievity) ... | |
| /** | |
| * @title Sablier | |
| * @author Sablier | |
| * @notice Money streaming. | |
| */ | |
| contract Sablier is ISablier, ReentrancyGuard, CarefulMath { |
CJ42
/ Sablier.sol
Created
April 12, 2022 06:15
Practical Example from Sablier to explain return inside if statement
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| pragma solidity =0.5.17; | |
| // import statements (omitted for brievity) ... | |
| /** | |
| * @title Sablier | |
| * @author Sablier | |
| * @notice Money streaming. | |
| */ | |
| contract Sablier is ISablier, ReentrancyGuard, CarefulMath { |
CJ42
/ LSP6KeyManagerCore.sol
Last active
April 27, 2022 23:44
code from the KeyManager contract from LUKSO to explain omitting parentheses in if statements
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| // SPDX-License-Identifier: Apache-2.0 | |
| pragma solidity ^0.8.6; | |
| // imports and errors declarations omitted for brievity ... | |
| /** | |
| * @title Core implementation of a contract acting as a controller of an ERC725 Account, using permissions stored in the ERC725Y storage | |
| * @author Fabian Vogelsteller, Jean Cavallera | |
| * @dev all the permissions can be set on the ERC725 Account using `setData(...)` with the keys constants below | |
| */ |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| pragma solidity ^0.8.0; | |
| /// THIS IS STILL A NEGATIVE EXAMPLE! DO NOT USE! | |
| contract Voting { | |
| mapping(address => uint) voteWeight; | |
| address[] yesVotes; | |
| uint requiredWeight; |
CJ42
/ HexString.sol
Created
April 14, 2022 19:43
function `toString` as an example of how `while` loops are used in Solidity
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| // SPDX-License-Identifier: GPL-2.0-or-later | |
| pragma solidity ^0.7.6; | |
| /// @title HexStrings | |
| /// Based on https://github.com/OpenZeppelin/openzeppelin-contracts/blob/8dd744fc1843d285c38e54e9d439dea7f6b93495/contracts/utils/Strings.sol | |
| library HexStrings { | |
| bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef"; | |
| /// @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. |
CJ42
/ Bytes-Uint-equivalence.md
Last active
December 1, 2022 12:00
Solidity Table that summarizes the equivalent number of bits / bytes to convert between signed / unsigned integer (`intN` / `uintN`) and `bytesN`
OlderNewer