Token

Contract Source Code (Solidity)

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 contract ContractReceiver    - function tokenFallback(address _from, ...  contract SafeMath    - function safeAdd(uint256 x, uint256 y ...    - function safeSub(uint256 x, uint256 y ...    - function safeMul(uint256 x, uint256 y ...  contract Token is SafeMath *    - function Token(string _tokenName, str ...    - function name()    - function symbol()    - function decimals()    - function totalSupply()    - function transfer(address _to, uint _ ...    - function transfer(address _to, uint _ ...    - function isContract(address _addr)    - function transferToAddress(address _t ...    - function transferToContract(address _ ...    - function balanceOf(address _owner)

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/**
 *Submitted for verification at Etherscan.io on 2018-07-24
*/

pragma solidity ^0.4.24;

contract ContractReceiver {
     
    struct TKN {
        address sender;
        uint value;
        bytes data;
        bytes4 sig;
    }
    
    function tokenFallback(address _from, uint _value, bytes _data){
      TKN memory tkn;
      tkn.sender = _from;
      tkn.value = _value;
      tkn.data = _data;
      uint32 u = uint32(_data[3]) + (uint32(_data[2]) << 8) + (uint32(_data[1]) << 16) + (uint32(_data[0]) << 24);
      tkn.sig = bytes4(u); 
 
    }
}

contract SafeMath {
    uint256 constant public MAX_UINT256 =
    0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF;

    function safeAdd(uint256 x, uint256 y) constant internal returns (uint256 z) {
        if (x > MAX_UINT256 - y) throw;
        return x + y;
    }

    function safeSub(uint256 x, uint256 y) constant internal returns (uint256 z) {
        if (x < y) throw;
        return x - y;
    }

    function safeMul(uint256 x, uint256 y) constant internal returns (uint256 z) {
        if (y == 0) return 0;
        if (x > MAX_UINT256 / y) throw;
        return x * y;
    }
}

contract Token is SafeMath{

  mapping(address => uint) balances;
  
  string public symbol = "";
  string public name = "";
  uint8 public decimals = 18;
  uint256 public totalSupply = 0;
  address owner = 0;
  
  event Transfer(address indexed from, address indexed to, uint value);
  event TransferToCon(address indexed from, address indexed to, uint value, bytes indexed data);
  
  function Token(string _tokenName, string _tokenSymbol, uint256 _tokenSupply) {
		owner = msg.sender;   
		symbol = _tokenSymbol;
		name = _tokenName;
		totalSupply = _tokenSupply * 1000000000000000000;
		balances[owner] = totalSupply;
    }

  
  function name() constant returns (string _name) {
      return name;
  }

  function symbol() constant returns (string _symbol) {
      return symbol;
  }

  function decimals() constant returns (uint8 _decimals) {
      return decimals;
  }

  function totalSupply() constant returns (uint256 _totalSupply) {
      return totalSupply;
  }
  
  function transfer(address _to, uint _value, bytes _data) returns (bool success) {
      
    if(isContract(_to)) {
        return transferToContract(_to, _value, _data);
    }
    else {
        return transferToAddress(_to, _value);
    }
}
  
  function transfer(address _to, uint _value) returns (bool success) {
      
    bytes memory empty;
    if(isContract(_to)) {
        return transferToContract(_to, _value, empty);
    }
    else {
        return transferToAddress(_to, _value);
    }
}

  function isContract(address _addr) private returns (bool is_contract) {
      uint length;
	  
	  if (balanceOf(_addr) >=0 )
	  
      assembly {
            length := extcodesize(_addr)
        }
        if(length>0) {
            return true;
        }
        else {
            return false;
        }
    }

  function transferToAddress(address _to, uint _value) private returns (bool success) {
    if (balanceOf(msg.sender) < _value) throw;
    balances[msg.sender] = safeSub(balanceOf(msg.sender), _value);
    balances[_to] = safeAdd(balanceOf(_to), _value);
    Transfer(msg.sender, _to, _value);
    return true;
  }
  
  function transferToContract(address _to, uint _value, bytes _data) private returns (bool success) {
    if (balanceOf(msg.sender) < _value) throw;
    balances[msg.sender] = safeSub(balanceOf(msg.sender), _value);
    balances[_to] = safeAdd(balanceOf(_to), _value);
    ContractReceiver reciever = ContractReceiver(_to);
    reciever.tokenFallback(msg.sender, _value, _data);
    TransferToCon(msg.sender, _to, _value, _data);
    return true;
}

  function balanceOf(address _owner) constant returns (uint balance) {
    return balances[_owner];
  }
  
}

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