Blockwell

smartshare token

ERC20

This contract is an ERC20 token.

Name smartshare token
Symbol SSP
Decimals 4
Total Supply 10,000,000,000 SSP

About link

Smartshare (SSP) is a cryptocurrency and operates on the Ethereum platform. Smartshare has a current supply of 10,000,000,000 with 4,639,918,910.61899 in circulation. The last known price of Smartshare is 0.00012105 USD and is up 2.06 over the last 24 hours. It is currently trading on 3 active market(s) with $10,421.58 traded over the last 24 hours. More information can be found at https://smartshare.vip/#/.

Stats

Public Functions 6
Event Types 2
Code Size 5,209 bytes

Events (2) keyboard_arrow_up

Approval Event

Parameters help
_owner
address help
_spender
address help
_value
uint256 help

Transfer Event

Parameters help
_from
address help
_to
address help
_value
uint256 help

name Variable

string help

decimals Variable

uint8 help

symbol Variable

string help

version Variable

string help

totalSupply Variable

uint256 help

balances Variable

mapping(address => uint256) help
Internal Variable

allowed Variable

mapping(address => mapping(address => uint256)) help
Internal Variable

Functions Expand All Collapse All

Parameters help

Name Type
_owner
address help

Properties

Visibility help public
Mutability help constant
Source Code
function balanceOf(address _owner) constant returns (uint256 balance) {
  return balances[_owner];
}

Parameters help

Name Type
_to
address help
_value
uint256 help

Properties

Visibility help public
Mutability help transaction
Source Code
function transfer(address _to, uint256 _value) returns (bool success) {
  //默认totalSupply 不会超过最大值 (2^256 - 1).
  //如果随着时间的推移将会有新的token生成,则可以用下面这句避免溢出的异常
  //require(balances[msg.sender] >= _value && balances[_to] + _value > balances[_to]);
  require(balances[msg.sender] >= _value);
  balances[msg.sender] -= _value; //从消息发送者账户中减去token数量_value
  balances[_to] += _value; //往接收账户增加token数量_value
  Transfer(msg.sender, _to, _value); //触发转币交易事件
  return true;
}

Parameters help

Name Type
_from
address help
_to
address help
_value
uint256 help

Properties

Visibility help public
Mutability help transaction
Source Code
function transferFrom(
  address _from,
  address _to,
  uint256 _value
) returns (bool success) {
  //require(balances[_from] >= _value && allowed[_from][msg.sender] >=
  // _value && balances[_to] + _value > balances[_to]);
  require(balances[_from] >= _value && allowed[_from][msg.sender] >= _value);
  balances[_to] += _value; //接收账户增加token数量_value
  balances[_from] -= _value; //支出账户_from减去token数量_value
  allowed[_from][msg.sender] -= _value; //消息发送者可以从账户_from中转出的数量减少_value
  Transfer(_from, _to, _value); //触发转币交易事件
  return true;
}

Parameters help

Name Type
_spender
address help
_value
uint256 help

Properties

Visibility help public
Mutability help transaction
Source Code
function approve(address _spender, uint256 _value) returns (bool success) {
  allowed[msg.sender][_spender] = _value;
  Approval(msg.sender, _spender, _value);
  return true;
}

Parameters help

Name Type
_owner
address help
_spender
address help

Properties

Visibility help public
Mutability help constant
Source Code
function allowance(address _owner, address _spender)
  constant
  returns (uint256 remaining)
{
  return allowed[_owner][_spender]; //允许_spender从_owner中转出的token数
}

approveAndCall keyboard_arrow_up

Parameters help

Name Type
_spender
address help
_value
uint256 help
_extraData
bytes help

Properties

Visibility help public
Mutability help transaction
Source Code
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.
  require(
    _spender.call(
      bytes4(bytes32(sha3("receiveApproval(address,uint256,address,bytes)"))),
      msg.sender,
      _value,
      this,
      _extraData
    )
  );
  return true;
}

Internal Functions Expand All Collapse All

Internal functions are parts of the contract that can't be used directly, but instead are used by the public functions listed above.