Token

Contract Source Code (Solidity)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

Outline

library SafeMath    - function mul(uint256 a, uint256 b)    - function div(uint256 a, uint256 b)    - function sub(uint256 a, uint256 b)    - function add(uint256 a, uint256 b)  contract ERC20Basic    - function totalSupply()    - function balanceOf(address who)    - function transfer(address to, uint256 ...  contract BasicToken is ERC20Basic    - function totalSupply()    - function transfer(address _to, uint25 ...    - function balanceOf(address _owner)  contract ERC20 is ERC20Basic    - function allowance(address owner, add ...    - function transferFrom(address from, a ...    - function approve(address spender, uin ...  contract StandardToken is ERC20, B ...    - function transferFrom(address _from, ...    - function approve(address _spender, ui ...    - function allowance(address _owner, ad ...    - function increaseApproval(address _sp ...    - function decreaseApproval(address _sp ...  contract SoCoToken is StandardToke ... *

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

/**
 *Submitted for verification at Etherscan.io on 2018-07-20
*/

pragma solidity ^0.4.21;

// File: openzeppelin-solidity/contracts/math/SafeMath.sol

/**
 * @title SafeMath
 * @dev Math operations with safety checks that throw on error
 */
library SafeMath {

  /**
  * @dev Multiplies two numbers, throws on overflow.
  */
  function mul(uint256 a, uint256 b) internal pure returns (uint256 c) {
    if (a == 0) {
      return 0;
    }
    c = a * b;
    assert(c / a == b);
    return c;
  }

  /**
  * @dev Integer division of two numbers, truncating the quotient.
  */
  function div(uint256 a, uint256 b) internal pure returns (uint256) {
    // assert(b > 0); // Solidity automatically throws when dividing by 0
    // uint256 c = a / b;
    // assert(a == b * c + a % b); // There is no case in which this doesn't hold
    return a / b;
  }

  /**
  * @dev Subtracts two numbers, throws on overflow (i.e. if subtrahend is greater than minuend).
  */
  function sub(uint256 a, uint256 b) internal pure returns (uint256) {
    assert(b <= a);
    return a - b;
  }

  /**
  * @dev Adds two numbers, throws on overflow.
  */
  function add(uint256 a, uint256 b) internal pure returns (uint256 c) {
    c = a + b;
    assert(c >= a);
    return c;
  }
}

// File: openzeppelin-solidity/contracts/token/ERC20/ERC20Basic.sol

/**
 * @title ERC20Basic
 * @dev Simpler version of ERC20 interface
 * @dev see https://github.com/ethereum/EIPs/issues/179
 */
contract ERC20Basic {
  function totalSupply() public view returns (uint256);
  function balanceOf(address who) public view returns (uint256);
  function transfer(address to, uint256 value) public returns (bool);
  event Transfer(address indexed from, address indexed to, uint256 value);
}

// File: openzeppelin-solidity/contracts/token/ERC20/BasicToken.sol

/**
 * @title Basic token
 * @dev Basic version of StandardToken, with no allowances.
 */
contract BasicToken is ERC20Basic {
  using SafeMath for uint256;

  mapping(address => uint256) balances;

  uint256 totalSupply_;

  /**
  * @dev total number of tokens in existence
  */
  function totalSupply() public view returns (uint256) {
    return totalSupply_;
  }

  /**
  * @dev transfer token for a specified address
  * @param _to The address to transfer to.
  * @param _value The amount to be transferred.
  */
  function transfer(address _to, uint256 _value) public returns (bool) {
    require(_to != address(0));
    require(_value <= balances[msg.sender]);

    balances[msg.sender] = balances[msg.sender].sub(_value);
    balances[_to] = balances[_to].add(_value);
    emit Transfer(msg.sender, _to, _value);
    return true;
  }

  /**
  * @dev Gets the balance of the specified address.
  * @param _owner The address to query the the balance of.
  * @return An uint256 representing the amount owned by the passed address.
  */
  function balanceOf(address _owner) public view returns (uint256) {
    return balances[_owner];
  }

}

// File: openzeppelin-solidity/contracts/token/ERC20/ERC20.sol

/**
 * @title ERC20 interface
 * @dev see https://github.com/ethereum/EIPs/issues/20
 */
contract ERC20 is ERC20Basic {
  function allowance(address owner, address spender) public view returns (uint256);
  function transferFrom(address from, address to, uint256 value) public returns (bool);
  function approve(address spender, uint256 value) public returns (bool);
  event Approval(address indexed owner, address indexed spender, uint256 value);
}

// File: openzeppelin-solidity/contracts/token/ERC20/StandardToken.sol

/**
 * @title Standard ERC20 token
 *
 * @dev Implementation of the basic standard token.
 * @dev https://github.com/ethereum/EIPs/issues/20
 * @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
 */
contract StandardToken is ERC20, BasicToken {

  mapping (address => mapping (address => uint256)) internal allowed;


  /**
   * @dev Transfer tokens from one address to another
   * @param _from address The address which you want to send tokens from
   * @param _to address The address which you want to transfer to
   * @param _value uint256 the amount of tokens to be transferred
   */
  function transferFrom(address _from, address _to, uint256 _value) public returns (bool) {
    require(_to != address(0));
    require(_value <= balances[_from]);
    require(_value <= allowed[_from][msg.sender]);

    balances[_from] = balances[_from].sub(_value);
    balances[_to] = balances[_to].add(_value);
    allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value);
    emit Transfer(_from, _to, _value);
    return true;
  }

  /**
   * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender.
   *
   * Beware that changing an allowance with this method brings the risk that someone may use both the old
   * and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this
   * race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards:
   * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
   * @param _spender The address which will spend the funds.
   * @param _value The amount of tokens to be spent.
   */
  function approve(address _spender, uint256 _value) public returns (bool) {
    allowed[msg.sender][_spender] = _value;
    emit Approval(msg.sender, _spender, _value);
    return true;
  }

  /**
   * @dev Function to check the amount of tokens that an owner allowed to a spender.
   * @param _owner address The address which owns the funds.
   * @param _spender address The address which will spend the funds.
   * @return A uint256 specifying the amount of tokens still available for the spender.
   */
  function allowance(address _owner, address _spender) public view returns (uint256) {
    return allowed[_owner][_spender];
  }

  /**
   * @dev Increase the amount of tokens that an owner allowed to a spender.
   *
   * approve should be called when allowed[_spender] == 0. To increment
   * allowed value is better to use this function to avoid 2 calls (and wait until
   * the first transaction is mined)
   * From MonolithDAO Token.sol
   * @param _spender The address which will spend the funds.
   * @param _addedValue The amount of tokens to increase the allowance by.
   */
  function increaseApproval(address _spender, uint _addedValue) public returns (bool) {
    allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue);
    emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
    return true;
  }

  /**
   * @dev Decrease the amount of tokens that an owner allowed to a spender.
   *
   * approve should be called when allowed[_spender] == 0. To decrement
   * allowed value is better to use this function to avoid 2 calls (and wait until
   * the first transaction is mined)
   * From MonolithDAO Token.sol
   * @param _spender The address which will spend the funds.
   * @param _subtractedValue The amount of tokens to decrease the allowance by.
   */
  function decreaseApproval(address _spender, uint _subtractedValue) public returns (bool) {
    uint oldValue = allowed[msg.sender][_spender];
    if (_subtractedValue > oldValue) {
      allowed[msg.sender][_spender] = 0;
    } else {
      allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue);
    }
    emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
    return true;
  }

}

// File: contracts/SoCoToken.sol

//------------------------------------
// SoCo Token by SoCo Team.
// An ERC20 standards
// author: SoCo Team
// Contact: [email protected]


/**
 * @title SoCoToken
 * The SocoToken contract ...
 */
contract SoCoToken is StandardToken{

    string public constant name = "SoCoToken";
    string public constant symbol = "SOCO";
    uint8 public constant decimals = 18;
    uint256 public constant INITIAL_SUPPLY = 1 * (10**9) * (10 ** uint256(decimals));

    constructor() public{
        totalSupply_ = INITIAL_SUPPLY;
        balances[msg.sender] = INITIAL_SUPPLY;
        emit Transfer(0x0, msg.sender, INITIAL_SUPPLY);
    }

}

• No Contract Security Audit Submitted- Submit Audit Here

[{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_value","type":"uint256"}],"name":"approve","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transferFrom","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"INITIAL_SUPPLY","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_subtractedValue","type":"uint256"}],"name":"decreaseApproval","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transfer","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_addedValue","type":"uint256"}],"name":"increaseApproval","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"},{"name":"_spender","type":"address"}],"name":"allowance","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"name":"owner","type":"address"},{"indexed":true,"name":"spender","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"from","type":"address"},{"indexed":true,"name":"to","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Transfer","type":"event"}]

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

bzzr://b1f81fddd1e96d2c32bd97dd50de85baefb403822b0b1be48843d2900b0c1041