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Update Feeless.sol to 0.4.24 #1

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Update Feeless.sol to 0.4.24 #1

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cf15874
Update Feeless.sol to 0.4.24
caffeinum Jul 17, 2018
d8e3d35
Update Migrations.sol
caffeinum Jul 17, 2018
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5 changes: 3 additions & 2 deletions contracts/Feeless.sol
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
pragma solidity ^0.4.23;
pragma solidity ^0.4.24;

import { ECRecovery } from "zeppelin-solidity/contracts/ECRecovery.sol";

Expand All @@ -22,7 +22,8 @@ contract Feeless {
require(this == target);

bytes memory prefix = "\x19Ethereum Signed Message:\n32";
bytes32 hash = keccak256(prefix, keccak256(target, data, nonce));
bytes32 payload = keccak256(abi.encodePacked(target, data, nonce));
bytes32 hash = keccak256(abi.encodePacked(prefix, payload));
msgSender = ECRecovery.recover(hash, sig);
require(msgSender == sender);
require(nonces[msgSender]++ == nonce);
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4 changes: 2 additions & 2 deletions contracts/Migrations.sol
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
pragma solidity ^0.4.23;
pragma solidity ^0.4.24;


contract Migrations {
Expand All @@ -10,7 +10,7 @@ contract Migrations {
if (msg.sender == owner) _;
}

function Migrations() public {
constructor () public {
owner = msg.sender;
}

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