Blockwell

Distributed Credit Chain

ERC20

This contract is an ERC20 token.

Name Distributed Credit Chain
Symbol DCC
Decimals 18
Total Supply 3,424,433,690 DCC

About

Stats

Public Functions 14
Event Types 5
Code Size 11,384 bytes

Events (5) keyboard_arrow_up

Approval Event

Parameters help
owner
address help
spender
address help
value
uint256 help

Mint Event

Parameters help
to
address help
amount
uint256 help

MintFinished Event

Parameters help

OwnershipTransferred Event

Parameters help
previousOwner
address help
newOwner
address help

Transfer Event

Parameters help
from
address help
to
address help
value
uint256 help

version Variable

string help

name Variable

string help

symbol Variable

string help

decimals Variable

uint256 help

cap Variable

uint256 help

mintingFinished Variable

bool help

totalSupply Variable

uint256 help

transfersEnabledFlag Variable

bool help

owner Variable

address help

minters Variable

mapping(address => bool) help

allowed Variable

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

balances Variable

mapping(address => uint256) help
Internal Variable

Functions Expand All Collapse All

Parameters help

Name Type
newOwner
address help

Properties

Visibility help public
Mutability help transaction

Requirements help

Source Code
function transferOwnership(address newOwner) public onlyOwner {
  require(newOwner != address(0));
  OwnershipTransferred(owner, newOwner);
  owner = newOwner;
}

Parameters help

Name Type
_owner
address help

Properties

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

Parameters help

Name Type
_to
address help
_value
uint256 help

Properties

Visibility help public
Mutability help transaction

Modifiers help

Source Code
function transfer(address _to, uint256 _value)
  public
  transfersEnabled
  returns (bool)
{
  require(_to != address(0));
  require(_value <= balances[msg.sender]);

  // SafeMath.sub will throw if there is not enough balance.
  balances[msg.sender] = balances[msg.sender].sub(_value);
  balances[_to] = balances[_to].add(_value);
  Transfer(msg.sender, _to, _value);
  return true;
}

Parameters help

This function has no parameters.

Properties

Visibility help public
Mutability help transaction
Source Code
function enableTransfers() public onlyOwner {
  transfersEnabledFlag = true;
}

Parameters help

Name Type
_addresses
address[] help
_value
uint256[] help

Properties

Visibility help public
Mutability help transaction
Source Code
function batchTransfer(address[] _addresses, uint256[] _value)
  public
  returns (bool)
{
  for (uint256 i = 0; i < _addresses.length; i++) {
    require(transfer(_addresses[i], _value[i]));
  }
  return true;
}

Parameters help

Name Type
_owner
address help
_spender
address help

Properties

Visibility help public
Mutability help view
Source Code
function allowance(address _owner, address _spender)
  public
  view
  returns (uint256)
{
  return allowed[_owner][_spender];
}

Parameters help

Name Type
_from
address help
_to
address help
_value
uint256 help

Properties

Visibility help public
Mutability help transaction

Modifiers help

Source Code
function transferFrom(
  address _from,
  address _to,
  uint256 _value
) public transfersEnabled 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);
  Transfer(_from, _to, _value);
  return true;
}

Parameters help

Name Type
_spender
address help
_value
uint256 help

Properties

Visibility help public
Mutability help transaction

Modifiers help

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

Parameters help

Name Type
_spender
address help
_addedValue
uint help

Properties

Visibility help public
Mutability help transaction

Modifiers help

Source Code
function increaseApproval(address _spender, uint256 _addedValue)
  public
  transfersEnabled
  returns (bool)
{
  allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(
    _addedValue
  );
  Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
  return true;
}

Parameters help

Name Type
_spender
address help
_subtractedValue
uint help

Properties

Visibility help public
Mutability help transaction

Modifiers help

Source Code
function decreaseApproval(address _spender, uint256 _subtractedValue)
  public
  transfersEnabled
  returns (bool)
{
  uint256 oldValue = allowed[msg.sender][_spender];
  if (_subtractedValue > oldValue) {
    allowed[msg.sender][_spender] = 0;
  } else {
    allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue);
  }
  Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
  return true;
}

Parameters help

Name Type
_addr
address help

Properties

Visibility help public
Mutability help transaction

Requirements help

Source Code
function addMinter(address _addr) public onlyOwner {
  require(_addr != address(0));
  minters[_addr] = true;
}

Parameters help

Name Type
_addr
address help

Properties

Visibility help public
Mutability help transaction

Requirements help

Source Code
function deleteMinter(address _addr) public onlyOwner {
  require(_addr != address(0));
  delete minters[_addr];
}

Parameters help

Name Type
_to
address help
_amount
uint256 help

Properties

Visibility help public
Mutability help transaction

Requirements help

Source Code
function mint(address _to, uint256 _amount)
  public
  onlyMinters
  canMint
  returns (bool)
{
  require(totalSupply.add(_amount) <= cap);

  return super.mint(_to, _amount);
}

Parameters help

This function has no parameters.

Properties

Visibility help public
Mutability help transaction
Source Code
function finishMinting() public onlyOwner canMint returns (bool) {
  mintingFinished = true;
  MintFinished();
  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.