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change approve() to conform to ERC20. Fix #438

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SylTi
2017-09-15 19:49:25 +02:00
parent d3c5ce268f
commit 83918cad4b
1 changed files with 1 additions and 1 deletions
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contracts/token/StandardToken.sol
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@ -49,7 +49,7 @@ contract StandardToken is ERC20, BasicToken {
// allowance to zero by calling `approve(_spender, 0)` if it is not
// already 0 to mitigate the race condition described here:
// https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
require((_value == 0) || (allowed[msg.sender][_spender] == 0));
// require((_value == 0) || (allowed[msg.sender][_spender] == 0));
allowed[msg.sender][_spender] = _value;
Approval(msg.sender, _spender, _value);