NEST

0x04abeda201850ac0124161f037efd70c74ddc74c Copy

ERC20

This contract is an ERC20 token.

Name NEST

Symbol NEST

Decimals 18

Total Supply 10,000,000,000 NEST

About

NEST Protocol (NEST) is a cryptocurrency and operates on the Ethereum platform. NEST Protocol has a current supply of 9,978,035,000 with 2,005,474,260.8981013 in circulation. The last known price of NEST Protocol is 0.00996951 USD and is up 1.91 over the last 24 hours. It is currently trading on 38 active market(s) with $4,890,186.03 traded over the last 24 hours. More information can be found at https://nestprotocol.org/.

Stats

Public Functions 12

Event Types 2

Code Size 11,016 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

uint256

allowed Variable

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

Internal Variable

balances Variable

IterableMapping.itmap

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
_owner	address

Properties

Visibility public

Mutability view

Source Code

function balanceOf(address _owner) public view returns (uint256) {
  return IterableMapping.iterate_getValue(balances, _owner);
}

transfer

Parameters

Name	Type
_to	address
_value	uint256

Properties

Visibility public

Mutability transaction

Requirements

_value must be less than or equal to UNKNOWN VALUE

_to must not be equal to UNKNOWN VALUE

Source Code

function transfer(address _to, uint256 _value) public returns (bool) {
  require(_value <= IterableMapping.iterate_getValue(balances, msg.sender));
  require(_to != address(0));

  IterableMapping.insert(
    balances,
    msg.sender,
    IterableMapping.iterate_getValue(balances, msg.sender).sub(_value)
  );
  IterableMapping.insert(
    balances,
    _to,
    IterableMapping.iterate_getValue(balances, _to).add(_value)
  );
  emit Transfer(msg.sender, _to, _value);
  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 allowed[_owner][_spender];
}

transferFrom

Parameters

Name	Type
_from	address
_to	address
_value	uint256

Properties

Visibility public

Mutability transaction

Requirements

_value must be less than or equal to UNKNOWN VALUE

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

_to must not be equal to UNKNOWN VALUE

Source Code

function transferFrom(
  address _from,
  address _to,
  uint256 _value
) public returns (bool) {
  require(_value <= IterableMapping.iterate_getValue(balances, _from));

  require(_value <= allowed[_from][msg.sender]);
  require(_to != address(0));

  IterableMapping.insert(
    balances,
    _from,
    IterableMapping.iterate_getValue(balances, _from).sub(_value)
  );
  IterableMapping.insert(
    balances,
    _to,
    IterableMapping.iterate_getValue(balances, _to).add(_value)
  );

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

approve

Parameters

Name	Type
_spender	address
_value	uint256

Properties

Visibility public

Mutability transaction

Source Code

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

increaseApproval

Parameters

Name	Type
_spender	address
_addedValue	uint256

Properties

Visibility public

Mutability transaction

Source Code

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

decreaseApproval

Parameters

Name	Type
_spender	address
_subtractedValue	uint256

Properties

Visibility public

Mutability transaction

Source Code

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

balancesStart

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function balancesStart() public view returns (uint256) {
  return IterableMapping.iterate_start(balances);
}

balancesGetBool

Parameters

Name	Type
num	uint256

Properties

Visibility public

Mutability view

Source Code

function balancesGetBool(uint256 num) public view returns (bool) {
  return IterableMapping.iterate_valid(balances, num);
}

balancesGetNext

Parameters

Name	Type
num	uint256

Properties

Visibility public

Mutability view

Source Code

function balancesGetNext(uint256 num) public view returns (uint256) {
  return IterableMapping.iterate_next(balances, num);
}

balancesGetValue

Parameters

Name	Type
num	uint256

Properties

Visibility public

Mutability view

Source Code

function balancesGetValue(uint256 num) public view returns (address, uint256) {
  address key;
  uint256 value;
  (key, value) = IterableMapping.iterate_get(balances, num);
  return (key, value);
}

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.

NEST

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

allowed Variable

balances 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

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

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

Source Code

increaseApproval 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

decreaseApproval 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

balancesStart 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

balancesGetBool 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

balancesGetNext 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

balancesGetValue 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

CONNECT WITH US

SUBSCRIBE TO THE BLOCKWELL NEWSLETTER TO RECEIVE UPDATES AND VALUABLE RESOURCES

About

Events (2)

Parameters

Parameters

State Variables (7)

totalSupply

Parameters

balanceOf

Parameters

transfer

Parameters

Requirements

allowance

Parameters

transferFrom

Parameters

Requirements

approve

Parameters

increaseApproval

Parameters

decreaseApproval

Parameters

balancesStart

Parameters

balancesGetBool

Parameters

balancesGetNext

Parameters

balancesGetValue

Parameters