Blockwell

Yearn Finance Protocol

ERC20

This contract is an ERC20 token.

Name Yearn Finance Protocol
Symbol YFP
Decimals 18
Total Supply 390,924 YFP

About link

Yearn Finance Protocol (YFP) is a cryptocurrency and operates on the Ethereum platform. Yearn Finance Protocol has a current supply of 440,748 with 0 in circulation. The last known price of Yearn Finance Protocol is 0.29079418 USD and is up 0.38 over the last 24 hours. It is currently trading on 1 active market(s) with $0.00 traded over the last 24 hours. More information can be found at https://www.yfprotocol.finance/.

Stats

Public Functions 10
Event Types 2
Code Size 3,721 bytes

Events (2) keyboard_arrow_up

Approval Event

Parameters help
tokenOwner
address help
spender
address help
tokens
uint help

Transfer Event

Parameters help
from
address help
to
address help
tokens
uint help

name Variable

string help

symbol Variable

string help

decimals Variable

uint8 help

_totalSupply Variable

uint256 help

balances Variable

mapping(address => uint) help
Internal Variable

allowed Variable

mapping(address => mapping(address => uint)) help
Internal Variable

Functions Expand All Collapse All

Parameters help

Name Type
a
uint help
b
uint help

Properties

Visibility help public
Mutability help pure

Requirements help

Source Code
function safeAdd(uint256 a, uint256 b) public pure returns (uint256 c) {
  c = a + b;
  require(c >= a);
}

Parameters help

Name Type
a
uint help
b
uint help

Properties

Visibility help public
Mutability help pure

Requirements help

Source Code
function safeSub(uint256 a, uint256 b) public pure returns (uint256 c) {
  require(b <= a);
  c = a - b;
}

Parameters help

Name Type
a
uint help
b
uint help

Properties

Visibility help public
Mutability help pure
Source Code
function safeMul(uint256 a, uint256 b) public pure returns (uint256 c) {
  c = a * b;
  require(a == 0 || c / a == b);
}

Parameters help

Name Type
a
uint help
b
uint help

Properties

Visibility help public
Mutability help pure

Requirements help

Source Code
function safeDiv(uint256 a, uint256 b) public pure returns (uint256 c) {
  require(b > 0);
  c = a / b;
}

Parameters help

This function has no parameters.

Properties

Visibility help public
Mutability help view
Source Code
function totalSupply() public view returns (uint256) {
  return _totalSupply - balances[address(0)];
}

Parameters help

Name Type
tokenOwner
address help

Properties

Visibility help public
Mutability help view
Source Code
function balanceOf(address tokenOwner) public view returns (uint256 balance) {
  return balances[tokenOwner];
}

Parameters help

Name Type
tokenOwner
address help
spender
address help

Properties

Visibility help public
Mutability help view
Source Code
function allowance(address tokenOwner, address spender)
  public
  view
  returns (uint256 remaining)
{
  return allowed[tokenOwner][spender];
}

Parameters help

Name Type
to
address help
tokens
uint help

Properties

Visibility help public
Mutability help transaction
Source Code
function transfer(address to, uint256 tokens) public returns (bool success) {
  balances[msg.sender] = safeSub(balances[msg.sender], tokens);
  balances[to] = safeAdd(balances[to], tokens);
  emit Transfer(msg.sender, to, tokens);
  return true;
}

Parameters help

Name Type
spender
address help
tokens
uint help

Properties

Visibility help public
Mutability help transaction
Source Code
function approve(address spender, uint256 tokens)
  public
  returns (bool success)
{
  allowed[msg.sender][spender] = tokens;
  emit Approval(msg.sender, spender, tokens);
  return true;
}

Parameters help

Name Type
from
address help
to
address help
tokens
uint help

Properties

Visibility help public
Mutability help transaction
Source Code
function transferFrom(
  address from,
  address to,
  uint256 tokens
) public returns (bool success) {
  balances[from] = safeSub(balances[from], tokens);
  allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens);
  balances[to] = safeAdd(balances[to], tokens);
  emit Transfer(from, to, tokens);
  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.