BNB

0xb8c77482e45f1f44de1745f52c74426c631bdd52 Copy

ERC20

This contract is an ERC20 token.

Name BNB

Symbol BNB

Decimals 18

Total Supply 16,579,517 BNB

About

Stats

Public Functions 8

Event Types 4

Code Size 6,147 bytes

Events (4)

Burn Event

Parameters

from	address
value	uint256

Freeze Event

Parameters

from	address
value	uint256

Transfer Event

Parameters

from	address
to	address
value	uint256

Unfreeze Event

Parameters

from	address
value	uint256

State Variables (8)

name Variable

string

symbol Variable

string

decimals Variable

uint8

totalSupply Variable

uint256

owner Variable

address

balanceOf Variable

mapping(address => uint256)

freezeOf Variable

mapping(address => uint256)

allowance Variable

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

Internal Variable

Functions Expand All Collapse All

transfer

Parameters

Name	Type
_to	address
_value	uint256

Properties

Visibility public

Mutability transaction

Requirements

_to must not be equal to 0x0

_value must be greater than 0

_value must be less than or equal to balanceOf for the sender's address

balanceOf for _to + _value must be greater than or equal to balanceOf for _to

Source Code

function transfer(address _to, uint256 _value) {
  if (_to == 0x0) throw; // Prevent transfer to 0x0 address. Use burn() instead
  if (_value <= 0) throw;
  if (balanceOf[msg.sender] < _value) throw; // Check if the sender has enough
  if (balanceOf[_to] + _value < balanceOf[_to]) throw; // Check for overflows
  balanceOf[msg.sender] = SafeMath.safeSub(balanceOf[msg.sender], _value); // Subtract from the sender
  balanceOf[_to] = SafeMath.safeAdd(balanceOf[_to], _value); // Add the same to the recipient
  Transfer(msg.sender, _to, _value); // Notify anyone listening that this transfer took place
}

approve

Parameters

Name	Type
_spender	address
_value	uint256

Properties

Visibility public

Mutability transaction

Requirements

_value must be greater than 0

Source Code

function approve(address _spender, uint256 _value) returns (bool success) {
  if (_value <= 0) throw;
  allowance[msg.sender][_spender] = _value;
  return true;
}

transferFrom

Parameters

Name	Type
_from	address
_to	address
_value	uint256

Properties

Visibility public

Mutability transaction

Requirements

_to must not be equal to 0x0

_value must be greater than 0

_value must be less than or equal to balanceOf for _from

balanceOf for _to + _value must be greater than or equal to balanceOf for _to

_value must be less than or equal to allowance for _from for the sender's address

Source Code

function transferFrom(
  address _from,
  address _to,
  uint256 _value
) returns (bool success) {
  if (_to == 0x0) throw; // Prevent transfer to 0x0 address. Use burn() instead
  if (_value <= 0) throw;
  if (balanceOf[_from] < _value) throw; // Check if the sender has enough
  if (balanceOf[_to] + _value < balanceOf[_to]) throw; // Check for overflows
  if (_value > allowance[_from][msg.sender]) throw; // Check allowance
  balanceOf[_from] = SafeMath.safeSub(balanceOf[_from], _value); // Subtract from the sender
  balanceOf[_to] = SafeMath.safeAdd(balanceOf[_to], _value); // Add the same to the recipient
  allowance[_from][msg.sender] = SafeMath.safeSub(
    allowance[_from][msg.sender],
    _value
  );
  Transfer(_from, _to, _value);
  return true;
}

burn

Parameters

Name	Type
_value	uint256

Properties

Visibility public

Mutability transaction

Requirements

_value must be less than or equal to balanceOf for the sender's address

_value must be greater than 0

Source Code

function burn(uint256 _value) returns (bool success) {
  if (balanceOf[msg.sender] < _value) throw; // Check if the sender has enough
  if (_value <= 0) throw;
  balanceOf[msg.sender] = SafeMath.safeSub(balanceOf[msg.sender], _value); // Subtract from the sender
  totalSupply = SafeMath.safeSub(totalSupply, _value); // Updates totalSupply
  Burn(msg.sender, _value);
  return true;
}

freeze

Parameters

Name	Type
_value	uint256

Properties

Visibility public

Mutability transaction

Requirements

_value must be less than or equal to balanceOf for the sender's address

_value must be greater than 0

Source Code

function freeze(uint256 _value) returns (bool success) {
  if (balanceOf[msg.sender] < _value) throw; // Check if the sender has enough
  if (_value <= 0) throw;
  balanceOf[msg.sender] = SafeMath.safeSub(balanceOf[msg.sender], _value); // Subtract from the sender
  freezeOf[msg.sender] = SafeMath.safeAdd(freezeOf[msg.sender], _value); // Updates totalSupply
  Freeze(msg.sender, _value);
  return true;
}

unfreeze

Parameters

Name	Type
_value	uint256

Properties

Visibility public

Mutability transaction

Requirements

_value must be less than or equal to freezeOf for the sender's address

_value must be greater than 0

Source Code

function unfreeze(uint256 _value) returns (bool success) {
  if (freezeOf[msg.sender] < _value) throw; // Check if the sender has enough
  if (_value <= 0) throw;
  freezeOf[msg.sender] = SafeMath.safeSub(freezeOf[msg.sender], _value); // Subtract from the sender
  balanceOf[msg.sender] = SafeMath.safeAdd(balanceOf[msg.sender], _value);
  Unfreeze(msg.sender, _value);
  return true;
}

withdrawEther

Parameters

Name	Type
amount	uint256

Properties

Visibility public

Mutability transaction

Requirements

owner must be equal to the sender's address

Source Code

function withdrawEther(uint256 amount) {
  if (msg.sender != owner) throw;
  owner.transfer(amount);
}

constructor

Parameters

This function has no parameters.

Properties

Visibility public

Mutability payable

Source Code

function() payable {}

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 SafeMath.safeMul

Parameters

Name	Type
a	uint256
b	uint256

Properties

Visibility internal

Mutability transaction

Requirements

One or more of the following: - b must be equal to c / a - OR a must be equal to 0

Source Code

function safeMul(uint256 a, uint256 b) internal returns (uint256) {
  uint256 c = a * b;
  assert(a == 0 || c / a == b);
  return c;
}

internal SafeMath.safeDiv

Parameters

Name	Type
a	uint256
b	uint256

Properties

Visibility internal

Mutability transaction

Requirements

b must be greater than 0

a must be equal to b * c + UNKNOWN VALUE

Source Code

function safeDiv(uint256 a, uint256 b) internal returns (uint256) {
  assert(b > 0);
  uint256 c = a / b;
  assert(a == b * c + (a % b));
  return c;
}

internal SafeMath.safeSub

Parameters

Name	Type
a	uint256
b	uint256

Properties

Visibility internal

Mutability transaction

Requirements

b must be less than or equal to a

Source Code

function safeSub(uint256 a, uint256 b) internal returns (uint256) {
  assert(b <= a);
  return a - b;
}

internal SafeMath.safeAdd

Parameters

Name	Type
a	uint256
b	uint256

Properties

Visibility internal

Mutability transaction

Requirements

c must be greater than or equal to b

c must be greater than or equal to a

Source Code

function safeAdd(uint256 a, uint256 b) internal returns (uint256) {
  uint256 c = a + b;
  assert(c >= a && c >= b);
  return c;
}

internal SafeMath.assert

Parameters

Name	Type
assertion	bool

Properties

Visibility internal

Mutability transaction

Requirements

assertion must not be true

Source Code

function assert(bool assertion) internal {
  if (!assertion) {
    throw;
  }
}

BNB

ERC20

About

Stats

Events (4) keyboard_arrow_up

Burn Event

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

Freeze 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.

Unfreeze Event

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

State Variables (8) keyboard_arrow_up

name Variable

symbol Variable

decimals Variable

totalSupply Variable

owner Variable

balanceOf Variable

freezeOf Variable

allowance Variable

Functions Expand All Collapse All

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

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

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

freeze 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

unfreeze 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

withdrawEther 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

constructor 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

Internal Functions Expand All Collapse All

internal SafeMath.safeMul 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 SafeMath.safeDiv 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 SafeMath.safeSub 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 SafeMath.safeAdd keyboard_arrow_up

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

Events (4)

Parameters

Parameters

Parameters

Parameters

State Variables (8)

transfer

Parameters

Requirements

approve

Parameters

Requirements

transferFrom

Parameters

Requirements

burn

Parameters

Requirements

freeze

Parameters

Requirements

unfreeze

Parameters

Requirements

withdrawEther

Parameters

Requirements

constructor

Parameters

internal SafeMath.safeMul

Parameters

Requirements

internal SafeMath.safeDiv

Parameters

Requirements

internal SafeMath.safeSub

Parameters

Requirements

internal SafeMath.safeAdd

Parameters

Requirements

internal SafeMath.assert

Parameters

Requirements