Ferrum Network Token

0xe5caef4af8780e59df925470b050fb23c43ca68c Copy

ERC20

This contract is an ERC20 token.

Name Ferrum Network Token

Symbol FRM

Decimals 6

Total Supply 164,608,000 FRM

About

Ferrum Network (FRM) is a cryptocurrency and operates on the Ethereum platform. Ferrum Network has a current supply of 287,217,374.246356 with 153,567,514.4877831 in circulation. The last known price of Ferrum Network is 0.09744961 USD and is down -1.84 over the last 24 hours. It is currently trading on 13 active market(s) with $514,540.78 traded over the last 24 hours. More information can be found at https://ferrum.network/.

Stats

Public Functions 10

Event Types 2

Code Size 15,706 bytes

Events (2)

Approval Event

Parameters

owner	address
spender	address
value	uint256

Transfer Event

Parameters

from	address
to	address
value	uint256

State Variables (7)

name Variable

string

symbol Variable

string

decimals Variable

uint8

INITIAL_SUPPLY Variable

uint

_balances Variable

mapping(address => uint256)

Internal Variable

_allowances Variable

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

Internal Variable

_totalSupply Variable

uint256

Internal Variable

Functions Expand All Collapse All

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
account	address

Properties

Visibility public

Mutability view

Source Code

function balanceOf(address account) public view returns (uint256) {
  return _balances[account];
}

transfer

Parameters

Name	Type
recipient	address
amount	uint256

Properties

Visibility public

Mutability transaction

Requirements

the sender's address must not be equal to UNKNOWN VALUE

recipient must not be equal to UNKNOWN VALUE

Source Code

function transfer(address recipient, uint256 amount) public returns (bool) {
  _transfer(msg.sender, recipient, amount);
  return true;
}

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 _allowances[owner][spender];
}

approve

Parameters

Name	Type
spender	address
value	uint256

Properties

Visibility public

Mutability transaction

Requirements

the sender's address must not be equal to UNKNOWN VALUE

spender must not be equal to UNKNOWN VALUE

Source Code

function approve(address spender, uint256 value) public returns (bool) {
  _approve(msg.sender, spender, value);
  return true;
}

transferFrom

Parameters

Name	Type
sender	address
recipient	address
amount	uint256

Properties

Visibility public

Mutability transaction

Requirements

the sender's address must not be equal to UNKNOWN VALUE

recipient must not be equal to UNKNOWN VALUE

the sender's address must not be equal to UNKNOWN VALUE

Source Code

function transferFrom(
  address sender,
  address recipient,
  uint256 amount
) public returns (bool) {
  _transfer(sender, recipient, amount);
  _approve(sender, msg.sender, _allowances[sender][msg.sender].sub(amount));
  return true;
}

increaseAllowance

Parameters

Name	Type
spender	address
addedValue	uint256

Properties

Visibility public

Mutability transaction

Requirements

the sender's address must not be equal to UNKNOWN VALUE

Source Code

function increaseAllowance(address spender, uint256 addedValue)
  public
  returns (bool)
{
  _approve(
    msg.sender,
    spender,
    _allowances[msg.sender][spender].add(addedValue)
  );
  return true;
}

decreaseAllowance

Parameters

Name	Type
spender	address
subtractedValue	uint256

Properties

Visibility public

Mutability transaction

Requirements

the sender's address must not be equal to UNKNOWN VALUE

Source Code

function decreaseAllowance(address spender, uint256 subtractedValue)
  public
  returns (bool)
{
  _approve(
    msg.sender,
    spender,
    _allowances[msg.sender][spender].sub(subtractedValue)
  );
  return true;
}

burn

Parameters

Name	Type
amount	uint256

Properties

Visibility public

Mutability transaction

Requirements

the sender's address must not be equal to UNKNOWN VALUE

Source Code

function burn(uint256 amount) public {
  _burn(msg.sender, amount);
}

burnFrom

Parameters

Name	Type
account	address
amount	uint256

Properties

Visibility public

Mutability transaction

Requirements

the sender's address must not be equal to UNKNOWN VALUE

Source Code

function burnFrom(address account, uint256 amount) public {
  _burnFrom(account, amount);
}

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 ERC20._transfer

Parameters

Name	Type
sender	address
recipient	address
amount	uint256

Properties

Visibility internal

Mutability transaction

Requirements

the sender's address must not be equal to UNKNOWN VALUE

recipient must not be equal to UNKNOWN VALUE

Source Code

function _transfer(
  address sender,
  address recipient,
  uint256 amount
) internal {
  require(sender != address(0), "ERC20: transfer from the zero address");
  require(recipient != address(0), "ERC20: transfer to the zero address");

  _balances[sender] = _balances[sender].sub(amount);
  _balances[recipient] = _balances[recipient].add(amount);
  emit Transfer(sender, recipient, amount);
}

internal ERC20._mint

Parameters

Name	Type
account	address
amount	uint256

Properties

Visibility internal

Mutability transaction

Requirements

account must not be equal to UNKNOWN VALUE

Source Code

function _mint(address account, uint256 amount) internal {
  require(account != address(0), "ERC20: mint to the zero address");

  _totalSupply = _totalSupply.add(amount);
  _balances[account] = _balances[account].add(amount);
  emit Transfer(address(0), account, amount);
}

internal ERC20._burn

Parameters

Name	Type
account	address
value	uint256

Properties

Visibility internal

Mutability transaction

Requirements

the sender's address must not be equal to UNKNOWN VALUE

Source Code

function _burn(address account, uint256 value) internal {
  require(account != address(0), "ERC20: burn from the zero address");

  _totalSupply = _totalSupply.sub(value);
  _balances[account] = _balances[account].sub(value);
  emit Transfer(account, address(0), value);
}

internal ERC20._approve

Parameters

Name	Type
owner	address
spender	address
value	uint256

Properties

Visibility internal

Mutability transaction

Requirements

the sender's address must not be equal to UNKNOWN VALUE

Source Code

function _approve(
  address owner,
  address spender,
  uint256 value
) internal {
  require(owner != address(0), "ERC20: approve from the zero address");
  require(spender != address(0), "ERC20: approve to the zero address");

  _allowances[owner][spender] = value;
  emit Approval(owner, spender, value);
}

internal ERC20._burnFrom

Parameters

Name	Type
account	address
amount	uint256

Properties

Visibility internal

Mutability transaction

Requirements

the sender's address must not be equal to UNKNOWN VALUE

Source Code

function _burnFrom(address account, uint256 amount) internal {
  _burn(account, amount);
  _approve(account, msg.sender, _allowances[account][msg.sender].sub(amount));
}

Ferrum Network Token

ERC20

About link description

Stats

Events (2) keyboard_arrow_up

Approval 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.

State Variables (7) keyboard_arrow_up

name Variable

symbol Variable

decimals Variable

INITIAL_SUPPLY Variable

_balances Variable

_allowances Variable

_totalSupply Variable

Functions Expand All Collapse All

totalSupply 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

balanceOf 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

transfer keyboard_arrow_up

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

Properties

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

allowance 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

approve keyboard_arrow_up

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

Properties

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

transferFrom keyboard_arrow_up

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

Properties

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

increaseAllowance keyboard_arrow_up

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

Properties

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

decreaseAllowance keyboard_arrow_up

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

Properties

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

burn keyboard_arrow_up

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

Properties

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

burnFrom keyboard_arrow_up

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

Properties

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

Internal Functions Expand All Collapse All

internal ERC20._transfer keyboard_arrow_up

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

Properties

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

internal ERC20._mint keyboard_arrow_up

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

Properties

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

internal ERC20._burn keyboard_arrow_up

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

Properties

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.

About

Events (2)

Parameters

Parameters

State Variables (7)

totalSupply

Parameters

balanceOf

Parameters

transfer

Parameters

Requirements

allowance

Parameters

approve

Parameters

Requirements

transferFrom

Parameters

Requirements

increaseAllowance

Parameters

Requirements

decreaseAllowance

Parameters

Requirements

burn

Parameters

Requirements

burnFrom

Parameters

Requirements

internal ERC20._transfer

Parameters

Requirements

internal ERC20._mint

Parameters

Requirements

internal ERC20._burn

Parameters

Requirements

internal ERC20._approve

Parameters

Requirements

internal ERC20._burnFrom

Parameters

Requirements