b7d60f2f9a
* Bump required compiler version to 0.5.2. * Fix shadowed variable warning in ERC20Migrator. * Rename Counter to Counters. * Add dummy state variable to SafeERC20Helper. * Update changelog entry. * Fix CountersImpl name. * Improve changelog entry.
24 lines
763 B
Solidity
24 lines
763 B
Solidity
pragma solidity ^0.5.2;
|
|
|
|
/**
|
|
* @title ERC20 interface
|
|
* @dev see https://github.com/ethereum/EIPs/issues/20
|
|
*/
|
|
interface IERC20 {
|
|
function transfer(address to, uint256 value) external returns (bool);
|
|
|
|
function approve(address spender, uint256 value) external returns (bool);
|
|
|
|
function transferFrom(address from, address to, uint256 value) external returns (bool);
|
|
|
|
function totalSupply() external view returns (uint256);
|
|
|
|
function balanceOf(address who) external view returns (uint256);
|
|
|
|
function allowance(address owner, address spender) external view returns (uint256);
|
|
|
|
event Transfer(address indexed from, address indexed to, uint256 value);
|
|
|
|
event Approval(address indexed owner, address indexed spender, uint256 value);
|
|
}
|