CWV Chain

0xed494c9e2f8e34e53bdd0ea9b4d80305cb15c5c2 Copy

ERC20

This contract is an ERC20 token.

Name CWV Chain

Symbol CWV

Decimals 18

Total Supply 10,000,000,000 CWV

About

CWV Chain (CWV) is a cryptocurrency and operates on the Ethereum platform. CWV Chain has a current supply of 10,000,000,000 with 3,540,912,310.9992 in circulation. The last known price of CWV Chain is 0.00152812 USD and is up 2.43 over the last 24 hours. It is currently trading on 2 active market(s) with $11,359.29 traded over the last 24 hours. More information can be found at https://cwv.io.

Stats

Public Functions 8

Event Types 2

Code Size 4,531 bytes

Events (2)

Approval Event

Parameters

owner	address
agent	address
value	uint256

Transfer Event

Parameters

from	address
to	address
value	uint256

State Variables (9)

name Variable

string

symbol Variable

string

decimals Variable

uint8

name Variable

string

symbol Variable

string

decimals Variable

uint8

_allowances Variable

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

Internal Variable

_totalSupply Variable

uint256

Internal Variable

_balances Variable

mapping(address => 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
addr	address

Properties

Visibility public

Mutability view

Source Code

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

transfer

Parameters

Name	Type
to	address
value	uint256

Properties

Visibility public

Mutability transaction

Requirements

to must not be equal to UNKNOWN VALUE

value must be less than or equal to _balances for the sender's address

Source Code

function transfer(address to, uint256 value) public returns (bool) {
  require(to != address(0));
  require(value <= _balances[msg.sender]);

  _balances[msg.sender] = _balances[msg.sender].sub(value);
  _balances[to] = _balances[to].add(value);
  emit Transfer(msg.sender, to, value);
  return true;
}

allowance

Parameters

Name	Type
owner	address
agent	address

Properties

Visibility public

Mutability view

Source Code

function allowance(address owner, address agent) public view returns (uint256) {
  return _allowances[owner][agent];
}

transferFrom

Parameters

Name	Type
from	address
to	address
value	uint256

Properties

Visibility public

Mutability transaction

Requirements

to must not be equal to UNKNOWN VALUE

value must be less than or equal to _balances for from

value must be less than or equal to _allowances for from for the sender's address

Source Code

function transferFrom(
  address from,
  address to,
  uint256 value
) public returns (bool) {
  require(to != address(0));
  require(value <= _balances[from]);
  require(value <= _allowances[from][msg.sender]);

  _balances[from] = _balances[from].sub(value);
  _balances[to] = _balances[to].add(value);
  _allowances[from][msg.sender] = _allowances[from][msg.sender].sub(value);
  emit Transfer(from, to, value);
  return true;
}

approve

Parameters

Name	Type
agent	address
value	uint256

Properties

Visibility public

Mutability transaction

Source Code

function approve(address agent, uint256 value) public returns (bool) {
  _allowances[msg.sender][agent] = value;
  emit Approval(msg.sender, agent, value);
  return true;
}

increaseApproval

Parameters

Name	Type
agent	address
value	uint

Properties

Visibility public

Mutability transaction

Source Code

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

decreaseApproval

Parameters

Name	Type
agent	address
value	uint

Properties

Visibility public

Mutability transaction

Source Code

function decreaseApproval(address agent, uint256 value) public returns (bool) {
  uint256 allowanceValue = _allowances[msg.sender][agent];
  if (value > allowanceValue) {
    _allowances[msg.sender][agent] = 0;
  } else {
    _allowances[msg.sender][agent] = allowanceValue.sub(value);
  }
  emit Approval(msg.sender, agent, _allowances[msg.sender][agent]);
  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.

CWV Chain

ERC20

About link

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 (9) keyboard_arrow_up

name Variable

symbol Variable

decimals Variable

name Variable

symbol Variable

decimals Variable

_allowances Variable

_totalSupply Variable

_balances 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

Internal Functions Expand All Collapse All

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About

Events (2)

Parameters

Parameters

State Variables (9)

totalSupply

Parameters

balanceOf

Parameters

transfer

Parameters

Requirements

allowance

Parameters

transferFrom

Parameters

Requirements

approve

Parameters

increaseApproval

Parameters

decreaseApproval

Parameters