Token

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 Woleum is StandardToken *    - function Woleum(    - function approveAndCall(address _spen ...

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

/**
 *Submitted for verification at Etherscan.io on 2017-08-19
*/

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 Woleum 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
   

//
// 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 Woleum(
        ) {
        balances[msg.sender] = 2000000000000000;               // Give the creator all initial tokens (100000 for example)
        totalSupply = 2000000000000000;                        // Update total supply (100000 for example)
        name = "Woleum";                                   // Set the name for display purposes
        decimals = 8;                            // Amount of decimals for display purposes
        symbol = "WLM";                               // 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,"type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_value","type":"uint256"}],"name":"approve","outputs":[{"name":"success","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"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,"type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"balance","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transfer","outputs":[{"name":"success","type":"bool"}],"payable":false,"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,"type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"},{"name":"_spender","type":"address"}],"name":"allowance","outputs":[{"name":"remaining","type":"uint256"}],"payable":false,"type":"function"},{"inputs":[],"type":"constructor"},{"payable":false,"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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