文件 1 的 1:EplusCoinToken.sol
pragma solidity ^0.4.8;
contract SafeMath {
function safeMul(uint256 a, uint256 b) internal returns (uint256) {
uint256 c = a * b;
assert(a == 0 || c / a == b);
return c;
}
function safeDiv(uint256 a, uint256 b) internal returns (uint256) {
assert(b > 0);
uint256 c = a / b;
assert(a == b * c + a % b);
return c;
}
function safeSub(uint256 a, uint256 b) internal returns (uint256) {
assert(b <= a);
return a - b;
}
function safeAdd(uint256 a, uint256 b) internal returns (uint256) {
uint256 c = a + b;
assert(c>=a && c>=b);
return c;
}
function max64(uint64 a, uint64 b) internal constant returns (uint64) {
return a >= b ? a : b;
}
function min64(uint64 a, uint64 b) internal constant returns (uint64) {
return a < b ? a : b;
}
function max256(uint256 a, uint256 b) internal constant returns (uint256) {
return a >= b ? a : b;
}
function min256(uint256 a, uint256 b) internal constant returns (uint256) {
return a < b ? a : b;
}
function assert(bool assertion) internal {
if (!assertion) {
throw;
}
}
}
contract ERC20 {
uint256 public totalSupply;
function balanceOf(address who) constant returns (uint256);
function allowance(address owner, address spender) constant returns (uint256);
function transfer(address to, uint256 value) returns (bool ok);
function transferFrom(address from, address to, uint256 value) returns (bool ok);
function approve(address spender, uint256 value) returns (bool ok);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
}
contract StandardToken is ERC20, SafeMath {
mapping(address => uint256) balances;
mapping (address => mapping (address => uint256)) allowed;
function transfer(address _to, uint256 _value) returns (bool success) {
balances[msg.sender] = safeSub(balances[msg.sender], _value);
balances[_to] = safeAdd(balances[_to], _value);
Transfer(msg.sender, _to, _value);
return true;
}
function transferFrom(address _from, address _to, uint256 _value) returns (bool success) {
var _allowance = allowed[_from][msg.sender];
balances[_to] = safeAdd(balances[_to], _value);
balances[_from] = safeSub(balances[_from], _value);
allowed[_from][msg.sender] = safeSub(_allowance, _value);
Transfer(_from, _to, _value);
return true;
}
function balanceOf(address _owner) constant returns (uint256 balance) {
return balances[_owner];
}
function approve(address _spender, uint256 _value) returns (bool success) {
allowed[msg.sender][_spender] = _value;
Approval(msg.sender, _spender, _value);
return true;
}
function allowance(address _owner, address _spender) constant returns (uint256 remaining) {
return allowed[_owner][_spender];
}
}
contract EplusCoinToken is StandardToken {
string public name = "EplusCoin";
string public symbol = "EPLUS";
uint256 public decimals = 8;
string public version = 'H0.1';
uint256 public totalSupply = 16800000000000000;
function EplusCoinToken() {
balances[msg.sender] = totalSupply;
}
}
{
"compilationTarget": {
"EplusCoinToken.sol": "EplusCoinToken"
},
"evmVersion": "byzantium",
"libraries": {},
"optimizer": {
"enabled": true,
"runs": 200
},
"remappings": []
}