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Revert "Update to solidity 0.4.24" #35

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Revert "Update to solidity 0.4.24" #35

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18 changes: 9 additions & 9 deletions contracts/erc20_tutorial.sol
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
pragma solidity ^0.4.24;
pragma solidity ^0.4.18;

// ----------------------------------------------------------------------------
// '0Fucks' token contract
Expand Down Expand Up @@ -74,7 +74,7 @@ contract Owned {

event OwnershipTransferred(address indexed _from, address indexed _to);

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

Expand All @@ -88,7 +88,7 @@ contract Owned {
}
function acceptOwnership() public {
require(msg.sender == newOwner);
emit OwnershipTransferred(owner, newOwner);
OwnershipTransferred(owner, newOwner);
owner = newOwner;
newOwner = address(0);
}
Expand All @@ -112,13 +112,13 @@ contract FucksToken is ERC20Interface, Owned, SafeMath {
// ------------------------------------------------------------------------
// Constructor
// ------------------------------------------------------------------------
constructor() public {
function FucksToken() public {
symbol = "0FUCKS";
name = "0 Fucks Token";
decimals = 18;
_totalSupply = 100000000000000000000000000;
balances[0x5A86f0cafD4ef3ba4f0344C138afcC84bd1ED222] = _totalSupply;
emit Transfer(address(0), 0x5A86f0cafD4ef3ba4f0344C138afcC84bd1ED222, _totalSupply);
Transfer(address(0), 0x5A86f0cafD4ef3ba4f0344C138afcC84bd1ED222, _totalSupply);
}


Expand Down Expand Up @@ -146,7 +146,7 @@ contract FucksToken is ERC20Interface, Owned, SafeMath {
function transfer(address to, uint tokens) public returns (bool success) {
balances[msg.sender] = safeSub(balances[msg.sender], tokens);
balances[to] = safeAdd(balances[to], tokens);
emit Transfer(msg.sender, to, tokens);
Transfer(msg.sender, to, tokens);
return true;
}

Expand All @@ -161,7 +161,7 @@ contract FucksToken is ERC20Interface, Owned, SafeMath {
// ------------------------------------------------------------------------
function approve(address spender, uint tokens) public returns (bool success) {
allowed[msg.sender][spender] = tokens;
emit Approval(msg.sender, spender, tokens);
Approval(msg.sender, spender, tokens);
return true;
}

Expand All @@ -179,7 +179,7 @@ contract FucksToken is ERC20Interface, Owned, SafeMath {
balances[from] = safeSub(balances[from], tokens);
allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens);
balances[to] = safeAdd(balances[to], tokens);
emit Transfer(from, to, tokens);
Transfer(from, to, tokens);
return true;
}

Expand All @@ -200,7 +200,7 @@ contract FucksToken is ERC20Interface, Owned, SafeMath {
// ------------------------------------------------------------------------
function approveAndCall(address spender, uint tokens, bytes data) public returns (bool success) {
allowed[msg.sender][spender] = tokens;
emit Approval(msg.sender, spender, tokens);
Approval(msg.sender, spender, tokens);
ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, this, data);
return true;
}
Expand Down