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-rw-r--r--contracts/tokens/contracts/ZRXToken/UnlimitedAllowanceToken_v1.sol52
1 files changed, 0 insertions, 52 deletions
diff --git a/contracts/tokens/contracts/ZRXToken/UnlimitedAllowanceToken_v1.sol b/contracts/tokens/contracts/ZRXToken/UnlimitedAllowanceToken_v1.sol
deleted file mode 100644
index bf1b0335a..000000000
--- a/contracts/tokens/contracts/ZRXToken/UnlimitedAllowanceToken_v1.sol
+++ /dev/null
@@ -1,52 +0,0 @@
-/*
-
- Copyright 2018 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_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;
- }
- }
-}