jamadei

// SPDX-License-Identifier: CC-BY-1.0
// Creative Commons Attribution 1.0 Generic

// Contract will be compiled on version 0.7.0 or greater
pragma solidity ^0.8.0;

// A smart contract to model an Id Card
contract IdCard {
    string public constant CONTRACT_AUTHOR = 'Marco Amadei';
 

jamadei

pragma solidity >=0.4.22 <0.9.0;
contract Oracle {
	struct Request {
	bytes data;
	function(uint) external callback;
	}
    Request[] requests;
    event NewRequest(uint index);
	function query(bytes memory data, function(uint) external callback) public {
		requests.push(Request(data, callback));

jamadei

// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.8.7;
import "hardhat/console.sol";

contract ReceiveEther {
 /*ppp  */
    event Called(string fun);
    /*
    Which function is called, fallback() or receive()?

jamadei

// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.8.7;
import "hardhat/console.sol";

contract ReceiveEther {
 /*ppp  */
    event Called(string fun);
    /*
    Which function is called, fallback() or receive()?

jamadei

// SPDX-License-Identifier: GPL-3.0

pragma solidity >=0.7.0 <0.9.0;

import "hardhat/console.sol";

/**
 * @title Owner
 * @dev Set & change owner
 */

jamadei

// SPDX-License-Identifier: CC-BY-1.0
// Creative Commons Attribution 1.0 Generic

// Contract will be compiled on version 0.7.0 or greater
pragma solidity ^0.8.0;

// A smart contract to model an Id Card
contract IdCard {
    string public constant CONTRACT_AUTHOR = 'Marco Amadei';
 

jamadei

// SPDX-License-Identifier: CC-BY-1.0
// Creative Commons Attribution 1.0 Generic
pragma solidity >=0.8.0 <0.9.0;


abstract contract Parent1 {
  enum Answer    {A,B,C,D}
    uint[] public  results ;
  
    constructor  (uint[3]  

jamadei

    // SPDX-License-Identifier: GPL-3.0
pragma solidity >=0.4.22 <0.9.0;
contract Oracle {
    struct Request {
        bytes data;
        function(uint) external callback;
    }
    Request[] private requests;
    event NewRequest(uint);
    function query(bytes memory data, function(uint) external callback) public {

jamadei

// SPDX-License-Identifier: CC-BY-1.0
// Creative Commons Attribution 1.0 Generic
// Contract will be compiled on version 0.7.0 or greater
pragma solidity ^0.8.0;

contract Utility {
    // The owner of the current instance of this smart contract
    address owner;

    // Event which will be raised anytime the current id information is updated.

jamadei

// SPDX-License-Identifier: CC-BY-1.0
// Creative Commons Attribution 1.0 Generic
// Contract will be compiled on version 0.7.0 or greater
pragma solidity ^0.8.0;

contract Utility {
    // The owner of the current instance of this smart contract
    address owner;

    // Event which will be raised anytime the current id information is updated.