Contract Source Code (Solidity)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

Outline

 contract Token    - function totalSupply()    - function balanceOf(address _owner)    - function transfer(address _to, uint25 ...    - function transferFrom(address _from, ...    - function approve(address _spender, ui ...    - function allowance(address _owner, ad ...  contract StandardToken is Token    - function transfer(address _to, uint25 ...    - function transferFrom(address _from, ...    - function balanceOf(address _owner)    - function approve(address _spender, ui ...    - function allowance(address _owner, ad ...  contract GUESS is StandardToken *    - function GUESS(    - function approveAndCall(address _spen ...

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

/**
 *Submitted for verification at Etherscan.io on 2017-12-10
*/

pragma solidity ^0.4.4;

contract Token {

    /// @return total amount of tokens
    function totalSupply() constant returns (uint256 supply) {}

    /// @param _owner The address from which the balance will be retrieved
    /// @return The balance
    function balanceOf(address _owner) constant returns (uint256 balance) {}

    /// @notice send `_value` token to `_to` from `msg.sender`
    /// @param _to The address of the recipient
    /// @param _value The amount of token to be transferred
    /// @return Whether the transfer was successful or not
    function transfer(address _to, uint256 _value) returns (bool success) {}

    /// @notice send `_value` token to `_to` from `_from` on the condition it is approved by `_from`
    /// @param _from The address of the sender
    /// @param _to The address of the recipient
    /// @param _value The amount of token to be transferred
    /// @return Whether the transfer was successful or not
    function transferFrom(address _from, address _to, uint256 _value) returns (bool success) {}

    /// @notice `msg.sender` approves `_addr` to spend `_value` tokens
    /// @param _spender The address of the account able to transfer the tokens
    /// @param _value The amount of wei to be approved for transfer
    /// @return Whether the approval was successful or not
    function approve(address _spender, uint256 _value) returns (bool success) {}

    /// @param _owner The address of the account owning tokens
    /// @param _spender The address of the account able to transfer the tokens
    /// @return Amount of remaining tokens allowed to spent
    function allowance(address _owner, address _spender) constant returns (uint256 remaining) {}

    event Transfer(address indexed _from, address indexed _to, uint256 _value);
    event Approval(address indexed _owner, address indexed _spender, uint256 _value);
    
}



contract StandardToken is Token {

    function transfer(address _to, uint256 _value) returns (bool success) {
        //Default assumes totalSupply can't be over max (2^256 - 1).
        //If your token leaves out totalSupply and can issue more tokens as time goes on, you need to check if it doesn't wrap.
        //Replace the if with this one instead.
        //if (balances[msg.sender] >= _value && balances[_to] + _value > balances[_to]) {
        if (balances[msg.sender] >= _value && _value > 0) {
            balances[msg.sender] -= _value;
            balances[_to] += _value;
            Transfer(msg.sender, _to, _value);
            return true;
        } else { return false; }
    }

    function transferFrom(address _from, address _to, uint256 _value) returns (bool success) {
        //same as above. Replace this line with the following if you want to protect against wrapping uints.
        //if (balances[_from] >= _value && allowed[_from][msg.sender] >= _value && balances[_to] + _value > balances[_to]) {
        if (balances[_from] >= _value && allowed[_from][msg.sender] >= _value && _value > 0) {
            balances[_to] += _value;
            balances[_from] -= _value;
            allowed[_from][msg.sender] -= _value;
            Transfer(_from, _to, _value);
            return true;
        } else { return false; }
    }

    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];
    }

    mapping (address => uint256) balances;
    mapping (address => mapping (address => uint256)) allowed;
    uint256 public totalSupply;
}


//name this contract whatever you'd like
contract GUESS is StandardToken {

    function () {
        //if ether is sent to this address, send it back.
        throw;
    }

    /* Public variables of the token */

    /*
    NOTE:
    The following variables are OPTIONAL vanities. One does not have to include them.
    They allow one to customise the token contract & in no way influences the core functionality.
    Some wallets/interfaces might not even bother to look at this information.
    */
    string public name;                   //fancy name: eg Simon Bucks
    uint8 public decimals;                //How many decimals to show. ie. There could 1000 base units with 3 decimals. Meaning 0.980 SBX = 980 base units. It's like comparing 1 wei to 1 ether.
    string public symbol;                 //An identifier: eg SBX
    string public version = '1.0';       //human 0.1 standard. Just an arbitrary versioning scheme.

//
// CHANGE THESE VALUES FOR YOUR TOKEN
//

//make sure this function name matches the contract name above. So if you're token is called TutorialToken, make sure the //contract name above is also TutorialToken instead of ERC20Token

    function GUESS(
        ) {
        balances[msg.sender] = 20000000000;               // Give the creator all initial tokens (100000 for example)
        totalSupply = 20000000000;                        // Update total supply (100000 for example)
        name = "GUESS";                                   // Set the name for display purposes
        decimals = 2;                            // Amount of decimals for display purposes
        symbol = "GUESS";                               // Set the symbol for display purposes
    }

    /* Approves and then calls the receiving contract */
    function approveAndCall(address _spender, uint256 _value, bytes _extraData) returns (bool success) {
        allowed[msg.sender][_spender] = _value;
        Approval(msg.sender, _spender, _value);

        //call the receiveApproval function on the contract you want to be notified. This crafts the function signature manually so one doesn't have to include a contract in here just for this.
        //receiveApproval(address _from, uint256 _value, address _tokenContract, bytes _extraData)
        //it is assumed that when does this that the call *should* succeed, otherwise one would use vanilla approve instead.
        if(!_spender.call(bytes4(bytes32(sha3("receiveApproval(address,uint256,address,bytes)"))), msg.sender, _value, this, _extraData)) { throw; }
        return true;
    }
}

• 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":"success","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":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"version","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"balance","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":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_value","type":"uint256"},{"name":"_extraData","type":"bytes"}],"name":"approveAndCall","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"},{"name":"_spender","type":"address"}],"name":"allowance","outputs":[{"name":"remaining","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"payable":false,"stateMutability":"nonpayable","type":"fallback"},{"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"},{"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"}]

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

bzzr://a8254e8c892d28094c4d8c3d38674b3e768df015119293ee5f345d2e175d4866