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author | Amir Bandeali <abandeali1@gmail.com> | 2018-02-06 05:02:48 +0800 |
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committer | Amir Bandeali <abandeali1@gmail.com> | 2018-02-07 09:26:12 +0800 |
commit | 897515c00207a11f7a45932d3c526a5eaf961635 (patch) | |
tree | 9282ffabd4242c73af49154fa963ebc3378bd935 /packages/contracts/src/previous/UnlimitedAllowanceToken | |
parent | 4c9c4c487a034d926443eeb8a0154fd38c97aca3 (diff) | |
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Add CLI option for networkId, add abi-gen to contracts package
Diffstat (limited to 'packages/contracts/src/previous/UnlimitedAllowanceToken')
-rw-r--r-- | packages/contracts/src/previous/UnlimitedAllowanceToken/UnlimitedAllowanceToken_v1.sol | 52 |
1 files changed, 0 insertions, 52 deletions
diff --git a/packages/contracts/src/previous/UnlimitedAllowanceToken/UnlimitedAllowanceToken_v1.sol b/packages/contracts/src/previous/UnlimitedAllowanceToken/UnlimitedAllowanceToken_v1.sol deleted file mode 100644 index 6376f3f2c..000000000 --- a/packages/contracts/src/previous/UnlimitedAllowanceToken/UnlimitedAllowanceToken_v1.sol +++ /dev/null @@ -1,52 +0,0 @@ -/* - - Copyright 2017 ZeroEx Intl. - - Licensed under the Apache License, Version 2.0 (the "License"); - you may not use this file except in compliance with the License. - You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - - Unless required by applicable law or agreed to in writing, software - distributed under the License is distributed on an "AS IS" BASIS, - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - See the License for the specific language governing permissions and - limitations under the License. - -*/ - -pragma solidity ^0.4.11; - -import { ERC20Token_v1 as ERC20Token } from "../ERC20Token/ERC20Token_v1.sol"; - -contract UnlimitedAllowanceToken_v1 is ERC20Token { - - uint constant MAX_UINT = 2**256 - 1; - - /// @dev ERC20 transferFrom, modified such that an allowance of MAX_UINT represents an unlimited allowance. - /// @param _from Address to transfer from. - /// @param _to Address to transfer to. - /// @param _value Amount to transfer. - /// @return Success of transfer. - function transferFrom(address _from, address _to, uint _value) - public - returns (bool) - { - uint allowance = allowed[_from][msg.sender]; - if (balances[_from] >= _value - && allowance >= _value - && balances[_to] + _value >= balances[_to] - ) { - balances[_to] += _value; - balances[_from] -= _value; - if (allowance < MAX_UINT) { - allowed[_from][msg.sender] -= _value; - } - Transfer(_from, _to, _value); - return true; - } else { - return false; - } - } -} |