Contract Source Code:
File 1 of 1 : TokenERC20
pragma solidity ^0.4.16;
interface tokenRecipient { function receiveApproval(address _from, uint256 _value, address _token, bytes _extraData) public; }
contract TokenERC20 {
// Public variables of the token
string public name;
string public symbol;
uint8 public decimals = 18;
// 18 decimals is the strongly suggested default, avoid changing it
uint256 public totalSupply;
// This creates an array with all balances
mapping (address => uint256) public balanceOf;
mapping (address => mapping (address => uint256)) public allowance;
// This generates a public event on the blockchain that will notify clients
event Transfer(address indexed from, address indexed to, uint256 value);
// This notifies clients about the amount burnt
event Burn(address indexed from, uint256 value);
/**
* Constrctor function
*
* Initializes contract with initial supply tokens to the creator of the contract
*/
function TokenERC20(
) public {
totalSupply = 100000000000 * 10 ** uint256(decimals); // Update total supply with the decimal amount
balanceOf[msg.sender] = totalSupply; // Give the creator all initial tokens
name ="Love Wine Coin"; // Set the name for display purposes
symbol = "LOVC"; // Set the symbol for display purposes
}
/**
* Internal transfer, only can be called by this contract
*/
function _transfer(address _from, address _to, uint _value) internal {
// Prevent transfer to 0x0 address. Use burn() instead
require(_to != 0x0);
// Check if the sender has enough
require(balanceOf[_from] >= _value);
// Check for overflows
require(balanceOf[_to] + _value > balanceOf[_to]);
// Save this for an assertion in the future
uint previousBalances = balanceOf[_from] + balanceOf[_to];
// Subtract from the sender
balanceOf[_from] -= _value;
// Add the same to the recipient
balanceOf[_to] += _value;
Transfer(_from, _to, _value);
// Asserts are used to use static analysis to find bugs in your code. They should never fail
assert(balanceOf[_from] + balanceOf[_to] == previousBalances);
}
/**
* Transfer tokens
*
* Send `_value` tokens to `_to` from your account
*
* @param _to The address of the recipient
* @param _value the amount to send
*/
function transfer(address _to, uint256 _value) public {
_transfer(msg.sender, _to, _value);
}
/**
* Transfer tokens from other address
*
* Send `_value` tokens to `_to` on behalf of `_from`
*
* @param _from The address of the sender
* @param _to The address of the recipient
* @param _value the amount to send
*/
// function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
// require(_value <= allowance[_from][msg.sender]); // Check allowance
// allowance[_from][msg.sender] -= _value;
// _transfer(_from, _to, _value);
// return true;
// }
/**
* Set allowance for other address
*
* Allows `_spender` to spend no more than `_value` tokens on your behalf
*
* @param _spender The address authorized to spend
* @param _value the max amount they can spend
*/
// function approve(address _spender, uint256 _value) public
// returns (bool success) {
// allowance[msg.sender][_spender] = _value;
// return true;
// }
/**
* Set allowance for other address and notify
*
* Allows `_spender` to spend no more than `_value` tokens on your behalf, and then ping the contract about it
*
* @param _spender The address authorized to spend
* @param _value the max amount they can spend
* @param _extraData some extra information to send to the approved contract
*/
// function approveAndCall(address _spender, uint256 _value, bytes _extraData)
// public
// returns (bool success) {
// tokenRecipient spender = tokenRecipient(_spender);
// if (approve(_spender, _value)) {
// spender.receiveApproval(msg.sender, _value, this, _extraData);
// return true;
// }
// }
/**
* Destroy tokens
*
* Remove `_value` tokens from the system irreversibly
*
* @param _value the amount of money to burn
*/
// function burn(uint256 _value) public returns (bool success) {
// require(balanceOf[msg.sender] >= _value); // Check if the sender has enough
// balanceOf[msg.sender] -= _value; // Subtract from the sender
// totalSupply -= _value; // Updates totalSupply
// Burn(msg.sender, _value);
// return true;
// }
/**
* Destroy tokens from other account
*
* Remove `_value` tokens from the system irreversibly on behalf of `_from`.
*
* @param _from the address of the sender
* @param _value the amount of money to burn
*/
// function burnFrom(address _from, uint256 _value) public returns (bool success) {
// require(balanceOf[_from] >= _value); // Check if the targeted balance is enough
// require(_value <= allowance[_from][msg.sender]); // Check allowance
// balanceOf[_from] -= _value; // Subtract from the targeted balance
// allowance[_from][msg.sender] -= _value; // Subtract from the sender's allowance
// totalSupply -= _value; // Update totalSupply
// Burn(_from, _value);
// return true;
// }
}