XSGD

0x70e8de73ce538da2beed35d14187f6959a8eca96 Copy

ERC20

This contract is an ERC20 token.

Name XSGD

Symbol XSGD

Decimals 6

Total Supply 17,322,556 XSGD

About

XSGD (XSGD) is a cryptocurrency and operates on the Ethereum platform. XSGD has a current supply of 46,739,090.03 with 38,294,099.450558 in circulation. The last known price of XSGD is 0.73482788 USD and is up 0.90 over the last 24 hours. It is currently trading on 7 active market(s) with $71,709.64 traded over the last 24 hours. More information can be found at https://www.xfers.com/sg/stablecoin.

Stats

Public Functions 28

Event Types 14

Code Size 28,936 bytes

Library Use

Uses SafeMath for uint256.

Events (14)

Approval Event

Parameters

owner	address
spender	address
amount	uint256

Blacklisted Event

Parameters

_account

address

BlacklisterChanged Event

Parameters

newBlacklister

address

Burn Event

Parameters

burner	address
amount	uint256

MasterMinterChanged Event

Parameters

newMasterMinter

address

Mint Event

Parameters

minter	address
to	address
amount	uint256

MinterConfigured Event

Parameters

minter	address
minterAllowedAmount	uint256

MinterRemoved Event

Parameters

oldMinter

address

OwnershipTransferred Event

Parameters

previousOwner	address
newOwner	address

Pause Event

Parameters

PauserChanged Event

Parameters

newAddress

address

Transfer Event

Parameters

from	address
to	address
amount	uint256

UnBlacklisted Event

Parameters

_account

address

Unpause Event

Parameters

State Variables (15)

name Variable

string

symbol Variable

string

decimals Variable

uint8

masterMinter Variable

address

pauser Variable

address

paused Variable

bool

blacklister Variable

address

initialized Variable

bool

Internal Variable

balances Variable

mapping(address => uint256)

Internal Variable

allowed Variable

mapping(address => mapping(address => uint256))

Internal Variable

totalSupply_ Variable

uint256

Internal Variable

minters Variable

mapping(address => bool)

Internal Variable

minterAllowed Variable

mapping(address => uint256)

Internal Variable

_owner Variable

address

Internal Variable

blacklisted Variable

mapping(address => bool)

Internal Variable

Functions Expand All Collapse All

owner

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function owner() public view returns (address) {
  return _owner;
}

transferOwnership

Parameters

Name	Type
newOwner	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

the sender's address must be equal to the result of calling owner

Requirements

newOwner must not be equal to UNKNOWN VALUE

newOwner must not be equal to the result of calling owner

Source Code

function transferOwnership(address newOwner) public onlyOwner {
  require(newOwner != address(0), "transferOwnership: 0x0 invalid");
  require(newOwner != owner(), "transferOwnership: same address");
  emit OwnershipTransferred(owner(), newOwner);
  setOwner(newOwner);
}

isBlacklisted

Parameters

Name	Type
_account	address

Properties

Visibility public

Mutability view

Source Code

function isBlacklisted(address _account) public view returns (bool) {
  return blacklisted[_account];
}

blacklist

Parameters

Name	Type
_account	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyBlacklister checks for the following:

blacklister must be equal to the sender's address

Requirements

_account must not be equal to UNKNOWN VALUE

the result of calling isBlacklisted with _account must not be true

Source Code

function blacklist(address _account) public onlyBlacklister {
  require(_account != address(0), "blacklist: 0x0 invalid");
  require(!isBlacklisted(_account), "blacklist: already blacklisted");
  blacklisted[_account] = true;
  emit Blacklisted(_account);
}

unBlacklist

Parameters

Name	Type
_account	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyBlacklister checks for the following:

blacklister must be equal to the sender's address

Requirements

_account must not be equal to UNKNOWN VALUE

null

Source Code

function unBlacklist(address _account) public onlyBlacklister {
  require(_account != address(0), "unBlacklist: 0x0 invalid");
  require(isBlacklisted(_account), "unBlacklist: not blacklisted");
  blacklisted[_account] = false;
  emit UnBlacklisted(_account);
}

updateBlacklister

Parameters

Name	Type
_newBlacklister	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

the sender's address must be equal to the result of calling owner

Requirements

_newBlacklister must not be equal to UNKNOWN VALUE

_newBlacklister must not be equal to blacklister

Source Code

function updateBlacklister(address _newBlacklister) public onlyOwner {
  require(_newBlacklister != address(0), "updateBlacklister: 0x0 invalid");
  require(_newBlacklister != blacklister, "updateBlacklister: same address");
  blacklister = _newBlacklister;
  emit BlacklisterChanged(blacklister);
}

pause

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Modifiers

onlyPauser checks for the following:

pauser must be equal to the sender's address

Source Code

function pause() public onlyPauser {
  paused = true;
  emit Pause();
}

unpause

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Modifiers

onlyPauser checks for the following:

pauser must be equal to the sender's address

Source Code

function unpause() public onlyPauser {
  paused = false;
  emit Unpause();
}

updatePauser

Parameters

Name	Type
_newPauser	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

the sender's address must be equal to the result of calling owner

Requirements

_newPauser must not be equal to UNKNOWN VALUE

_newPauser must not be equal to pauser

Source Code

function updatePauser(address _newPauser) public onlyOwner {
  require(_newPauser != address(0), "updatePauser: 0x0 invalid");
  require(_newPauser != pauser, "updatePauser: same address");
  pauser = _newPauser;
  emit PauserChanged(pauser);
}

initialize

Parameters

Name	Type
_name	string
_symbol	string
_decimals	uint8
_masterMinter	address
_pauser	address
_blacklister	address
_owner	address

Properties

Visibility public

Mutability transaction

Requirements

initialized must not be true

_masterMinter must not be equal to UNKNOWN VALUE

_pauser must not be equal to UNKNOWN VALUE

_blacklister must not be equal to UNKNOWN VALUE

_owner must not be equal to UNKNOWN VALUE

Source Code

function initialize(
  string _name,
  string _symbol,
  uint8 _decimals,
  address _masterMinter,
  address _pauser,
  address _blacklister,
  address _owner
) public {
  require(!initialized, "already initialized!");
  require(_masterMinter != address(0), "master minter can't be 0x0");
  require(_pauser != address(0), "pauser can't be 0x0");
  require(_blacklister != address(0), "blacklister can't be 0x0");
  require(_owner != address(0), "owner can't be 0x0");

  name = _name;
  symbol = _symbol;
  decimals = _decimals;
  masterMinter = _masterMinter;
  pauser = _pauser;
  blacklister = _blacklister;
  setOwner(_owner);
  initialized = true;
}

mint

Parameters

Name	Type
_to	address
_amount	uint256

Properties

Visibility public

Mutability transaction

Modifiers

whenNotPaused checks for the following:

paused must not be true

onlyMinters checks for the following:

minters for the sender's address must be equal to true

notBlacklisted checks for the following:

blacklisted for the sender's address must be equal to false

notBlacklisted checks for the following:

blacklisted for the sender's address must be equal to false

Requirements

_to must not be equal to UNKNOWN VALUE

_amount must be greater than 0

_amount must be less than or equal to mintingAllowedAmount

Source Code

function mint(address _to, uint256 _amount)
  public
  whenNotPaused
  onlyMinters
  notBlacklisted(msg.sender)
  notBlacklisted(_to)
  returns (bool)
{
  require(_to != address(0), "can't mint to 0x0");
  require(_amount > 0, "amount to mint has to be > 0");

  uint256 mintingAllowedAmount = minterAllowance(msg.sender);
  require(_amount <= mintingAllowedAmount, "minter allowance too low");

  totalSupply_ = totalSupply_.add(_amount);
  balances[_to] = balances[_to].add(_amount);
  minterAllowed[msg.sender] = mintingAllowedAmount.sub(_amount);
  if (minterAllowance(msg.sender) == 0) {
    minters[msg.sender] = false;
    emit MinterRemoved(msg.sender);
  }
  emit Mint(msg.sender, _to, _amount);
  emit Transfer(0x0, _to, _amount);
  return true;
}

minterAllowance

Parameters

Name	Type
_minter	address

Properties

Visibility public

Mutability view

Source Code

function minterAllowance(address _minter) public view returns (uint256) {
  return minterAllowed[_minter];
}

isMinter

Parameters

Name	Type
_address	address

Properties

Visibility public

Mutability view

Source Code

function isMinter(address _address) public view returns (bool) {
  return minters[_address];
}

totalSupply

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function totalSupply() public view returns (uint256) {
  return totalSupply_;
}

balanceOf

Parameters

Name	Type
_address	address

Properties

Visibility public

Mutability view

Source Code

function balanceOf(address _address) public view returns (uint256) {
  return balances[_address];
}

approve

Parameters

Name	Type
_spender	address
_amount	uint256

Properties

Visibility public

Mutability transaction

Modifiers

whenNotPaused checks for the following:

paused must not be true

notBlacklisted checks for the following:

blacklisted for the sender's address must be equal to false

notBlacklisted checks for the following:

blacklisted for the sender's address must be equal to false

Source Code

function approve(address _spender, uint256 _amount)
  public
  whenNotPaused
  notBlacklisted(msg.sender)
  notBlacklisted(_spender)
  returns (bool)
{
  return _approve(_spender, _amount);
}

increaseAllowance

Parameters

Name	Type
_spender	address
_addedValue	uint256

Properties

Visibility public

Mutability transaction

Modifiers

whenNotPaused checks for the following:

paused must not be true

notBlacklisted checks for the following:

blacklisted for the sender's address must be equal to false

notBlacklisted checks for the following:

blacklisted for the sender's address must be equal to false

Source Code

function increaseAllowance(address _spender, uint256 _addedValue)
  public
  whenNotPaused
  notBlacklisted(msg.sender)
  notBlacklisted(_spender)
  returns (bool)
{
  uint256 updatedAllowance = allowed[msg.sender][_spender].add(_addedValue);
  return _approve(_spender, updatedAllowance);
}

decreaseAllowance

Parameters

Name	Type
_spender	address
_subtractedValue	uint256

Properties

Visibility public

Mutability transaction

Modifiers

whenNotPaused checks for the following:

paused must not be true

notBlacklisted checks for the following:

blacklisted for the sender's address must be equal to false

notBlacklisted checks for the following:

blacklisted for the sender's address must be equal to false

Source Code

function decreaseAllowance(address _spender, uint256 _subtractedValue)
  public
  whenNotPaused
  notBlacklisted(msg.sender)
  notBlacklisted(_spender)
  returns (bool)
{
  uint256 updatedAllowance = allowed[msg.sender][_spender].sub(
    _subtractedValue
  );
  return _approve(_spender, updatedAllowance);
}

allowance

Parameters

Name	Type
_owner	address
_spender	address

Properties

Visibility public

Mutability view

Source Code

function allowance(address _owner, address _spender)
  public
  view
  returns (uint256)
{
  return allowed[_owner][_spender];
}

transferFrom

Parameters

Name	Type
_from	address
_to	address
_amount	uint256

Properties

Visibility public

Mutability transaction

Modifiers

whenNotPaused checks for the following:

paused must not be true

notBlacklisted checks for the following:

blacklisted for the sender's address must be equal to false

notBlacklisted checks for the following:

blacklisted for the sender's address must be equal to false

notBlacklisted checks for the following:

blacklisted for the sender's address must be equal to false

Requirements

_to must not be equal to UNKNOWN VALUE

_amount must be less than or equal to balances for _from

_amount must be less than or equal to allowed for _from for the sender's address

Source Code

function transferFrom(
  address _from,
  address _to,
  uint256 _amount
)
  public
  whenNotPaused
  notBlacklisted(_to)
  notBlacklisted(msg.sender)
  notBlacklisted(_from)
  returns (bool)
{
  require(_to != address(0), "can't transfer to 0x0");
  require(_amount <= balances[_from], "insufficient balance");
  require(_amount <= allowed[_from][msg.sender], "token allowance is too low");

  balances[_from] = balances[_from].sub(_amount);
  balances[_to] = balances[_to].add(_amount);
  allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_amount);
  emit Transfer(_from, _to, _amount);
  return true;
}

transfer

Parameters

Name	Type
_to	address
_amount	uint256

Properties

Visibility public

Mutability transaction

Modifiers

whenNotPaused checks for the following:

paused must not be true

notBlacklisted checks for the following:

blacklisted for the sender's address must be equal to false

notBlacklisted checks for the following:

blacklisted for the sender's address must be equal to false

Requirements

_to must not be equal to UNKNOWN VALUE

_amount must be less than or equal to balances for the sender's address

Source Code

function transfer(address _to, uint256 _amount)
  public
  whenNotPaused
  notBlacklisted(msg.sender)
  notBlacklisted(_to)
  returns (bool)
{
  require(_to != address(0), "can't transfer to 0x0");
  require(_amount <= balances[msg.sender], "insufficient balance");

  balances[msg.sender] = balances[msg.sender].sub(_amount);
  balances[_to] = balances[_to].add(_amount);
  emit Transfer(msg.sender, _to, _amount);
  return true;
}

increaseMinterAllowance

Parameters

Name	Type
_minter	address
_increasedAmount	uint256

Properties

Visibility public

Mutability transaction

Modifiers

onlyMasterMinter checks for the following:

masterMinter must be equal to the sender's address

Requirements

_minter must not be equal to UNKNOWN VALUE

Source Code

function increaseMinterAllowance(address _minter, uint256 _increasedAmount)
  public
  onlyMasterMinter
{
  require(_minter != address(0), "minter can't be 0x0");
  uint256 updatedAllowance = minterAllowance(_minter).add(_increasedAmount);
  minterAllowed[_minter] = updatedAllowance;
  minters[_minter] = true;
  emit MinterConfigured(_minter, updatedAllowance);
}

decreaseMinterAllowance

Parameters

Name	Type
_minter	address
_decreasedAmount	uint256

Properties

Visibility public

Mutability transaction

Modifiers

onlyMasterMinter checks for the following:

masterMinter must be equal to the sender's address

Requirements

_minter must not be equal to UNKNOWN VALUE

Source Code

function decreaseMinterAllowance(address _minter, uint256 _decreasedAmount)
  public
  onlyMasterMinter
{
  require(_minter != address(0), "minter can't be 0x0");
  require(minters[_minter], "not a minter");

  uint256 updatedAllowance = minterAllowance(_minter).sub(_decreasedAmount);
  minterAllowed[_minter] = updatedAllowance;
  if (minterAllowance(_minter) > 0) {
    emit MinterConfigured(_minter, updatedAllowance);
  } else {
    minters[_minter] = false;
    emit MinterRemoved(_minter);
  }
}

burn

Parameters

Name	Type
_amount	uint256

Properties

Visibility public

Mutability transaction

Modifiers

whenNotPaused checks for the following:

paused must not be true

onlyMinters checks for the following:

minters for the sender's address must be equal to true

notBlacklisted checks for the following:

blacklisted for the sender's address must be equal to false

Requirements

_amount must be greater than 0

balance must be greater than or equal to _amount

Source Code

function burn(uint256 _amount)
  public
  whenNotPaused
  onlyMinters
  notBlacklisted(msg.sender)
{
  uint256 balance = balances[msg.sender];
  require(_amount > 0, "burn amount has to be > 0");
  require(balance >= _amount, "balance in minter is < amount to burn");

  totalSupply_ = totalSupply_.sub(_amount);
  balances[msg.sender] = balance.sub(_amount);
  emit Burn(msg.sender, _amount);
  emit Transfer(msg.sender, address(0), _amount);
}

lawEnforcementWipingBurn

Parameters

Name	Type
_from	address

Properties

Visibility public

Mutability transaction

Modifiers

whenNotPaused checks for the following:

paused must not be true

onlyBlacklister checks for the following:

blacklister must be equal to the sender's address

Requirements

null

Source Code

function lawEnforcementWipingBurn(address _from)
  public
  whenNotPaused
  onlyBlacklister
{
  require(
    isBlacklisted(_from),
    "Can't wipe balances of a non blacklisted address"
  );
  uint256 balance = balances[_from];
  totalSupply_ = totalSupply_.sub(balance);
  balances[_from] = 0;
  emit Burn(_from, balance);
  emit Transfer(_from, address(0), balance);
}

updateMasterMinter

Parameters

Name	Type
_newMasterMinter	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

the sender's address must be equal to the result of calling owner

Requirements

_newMasterMinter must not be equal to UNKNOWN VALUE

_newMasterMinter must not be equal to masterMinter

Source Code

function updateMasterMinter(address _newMasterMinter) public onlyOwner {
  require(_newMasterMinter != address(0), "master minter can't be 0x0");
  require(_newMasterMinter != masterMinter, "master minter is the same");
  masterMinter = _newMasterMinter;
  emit MasterMinterChanged(masterMinter);
}

tokenFallback

Parameters

Name	Type
_from	address
_value	uint256
_data	bytes

Properties

Visibility public

Mutability pure

Source Code

function tokenFallback(
  address _from,
  uint256 _value,
  bytes _data
) external pure {
  revert("reject EIP223 token transfers");
}

reclaimToken

Parameters

Name	Type
_tokenAddress	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

the sender's address must be equal to the result of calling owner

Requirements

_tokenAddress must not be equal to UNKNOWN VALUE

Source Code

function reclaimToken(address _tokenAddress) external onlyOwner {
  require(_tokenAddress != address(0), "token can't be 0x0");
  ERC20Recovery token = ERC20Recovery(_tokenAddress);
  uint256 balance = token.balanceOf(this);
  require(token.transfer(owner(), balance), "reclaim token failed");
}

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.

internal FiatTokenV1._approve

Parameters

Name	Type
_spender	address
_amount	uint256

Properties

Visibility internal

Mutability transaction

Source Code

function _approve(address _spender, uint256 _amount) internal returns (bool) {
  allowed[msg.sender][_spender] = _amount;
  emit Approval(msg.sender, _spender, _amount);
  return true;
}

internal Ownable.constructor

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability transaction

Source Code

constructor() internal {
  setOwner(msg.sender);
  emit OwnershipTransferred(address(0), _owner);
}

internal Ownable.setOwner

Parameters

Name	Type
newOwner	address

Properties

Visibility internal

Mutability transaction

Source Code

function setOwner(address newOwner) internal {
  _owner = newOwner;
}

internal Ownable.constructor

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability transaction

Source Code

constructor() internal {
  setOwner(msg.sender);
  emit OwnershipTransferred(address(0), _owner);
}

internal Ownable.setOwner

Parameters

Name	Type
newOwner	address

Properties

Visibility internal

Mutability transaction

Source Code

function setOwner(address newOwner) internal {
  _owner = newOwner;
}

internal Ownable.constructor

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability transaction

Source Code

constructor() internal {
  setOwner(msg.sender);
  emit OwnershipTransferred(address(0), _owner);
}

internal Ownable.setOwner

Parameters

Name	Type
newOwner	address

Properties

Visibility internal

Mutability transaction

Source Code

function setOwner(address newOwner) internal {
  _owner = newOwner;
}

XSGD

ERC20

About link

Stats

Library Use

Events (14) keyboard_arrow_up

Approval Event

Parameters help Event parameters list the data that an event contains.

Blacklisted Event

Parameters help Event parameters list the data that an event contains.

BlacklisterChanged Event

Parameters help Event parameters list the data that an event contains.

Burn Event

Parameters help Event parameters list the data that an event contains.

MasterMinterChanged Event

Parameters help Event parameters list the data that an event contains.

Mint Event

Parameters help Event parameters list the data that an event contains.

MinterConfigured Event

Parameters help Event parameters list the data that an event contains.

MinterRemoved Event

Parameters help Event parameters list the data that an event contains.

OwnershipTransferred Event

Parameters help Event parameters list the data that an event contains.

Pause Event

Parameters help Event parameters list the data that an event contains.

PauserChanged Event

Parameters help Event parameters list the data that an event contains.

Transfer Event

Parameters help Event parameters list the data that an event contains.

UnBlacklisted Event

Parameters help Event parameters list the data that an event contains.

Unpause Event

Parameters help Event parameters list the data that an event contains.

State Variables (15) keyboard_arrow_up

name Variable

symbol Variable

decimals Variable

masterMinter Variable

pauser Variable

paused Variable

blacklister Variable

initialized Variable

balances Variable

allowed Variable

totalSupply_ Variable

minters Variable

minterAllowed Variable

_owner Variable

blacklisted Variable

Functions Expand All Collapse All

owner keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Source Code

transferOwnership keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Modifiers help Modifiers are additions to a function that typically make various checks before the function is run.

onlyOwner checks for the following:

Requirements help Requirements are checks that the function makes when it runs, and give you insight on what conditions are required for the function to succeed.

Source Code

isBlacklisted keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Source Code

blacklist keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Modifiers help Modifiers are additions to a function that typically make various checks before the function is run.

onlyBlacklister checks for the following:

Requirements help Requirements are checks that the function makes when it runs, and give you insight on what conditions are required for the function to succeed.

Source Code

unBlacklist keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Modifiers help Modifiers are additions to a function that typically make various checks before the function is run.

onlyBlacklister checks for the following:

Requirements help Requirements are checks that the function makes when it runs, and give you insight on what conditions are required for the function to succeed.

Source Code

About

Events (14)

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

State Variables (15)

owner

Parameters

transferOwnership

Parameters

Modifiers

Requirements

isBlacklisted

Parameters

blacklist

Parameters

Modifiers

Requirements

unBlacklist

Parameters

Modifiers

Requirements

updateBlacklister

Parameters

Modifiers

Requirements

pause

Parameters

Modifiers

unpause

Parameters

Modifiers

updatePauser

Parameters

Modifiers

Requirements

initialize

Parameters

Requirements

mint

Parameters

Modifiers

Requirements

minterAllowance

Parameters

isMinter

Parameters

totalSupply

Parameters

balanceOf

Parameters

approve

Parameters

Modifiers

increaseAllowance

Parameters

Modifiers