Gifto

0xc5bbae50781be1669306b9e001eff57a2957b09d Copy

ERC20

This contract is an ERC20 token.

Name Gifto

Symbol GTO

Decimals 5

Total Supply 1,000,000,000 GTO

About

Stats

Public Functions 19

Event Types 2

Code Size 11,321 bytes

Events (2)

Approval Event

Parameters

_owner	address
_spender	address
_value	uint256

Transfer Event

Parameters

_from	address
_to	address
_value	uint256

Constants (3)

decimals Constant

uint256

symbol Constant

string

GTO

name Constant

string

Gifto

State Variables (14)

_selling Variable

bool

_totalSupply Variable

uint256

_originalBuyPrice Variable

uint256

owner Variable

address

_icoPercent Variable

uint256

_icoSupply Variable

uint256

_minimumBuy Variable

uint256

_maximumBuy Variable

uint256

totalTokenSold Variable

uint256

tradable Variable

bool

balances Variable

mapping(address => uint256)

Internal Variable

allowed Variable

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

Internal Variable

approvedInvestorList Variable

mapping(address => bool)

Internal Variable

deposit Variable

mapping(address => uint256)

Internal Variable

Functions Expand All Collapse All

totalSupply

Parameters

This function has no parameters.

Properties

Visibility public

Mutability constant

Source Code

function totalSupply() public constant returns (uint256) {
  return _totalSupply;
}

balanceOf

Parameters

Name	Type
_addr	address

Properties

Visibility public

Mutability constant

Source Code

function balanceOf(address _addr) public constant returns (uint256) {
  return balances[_addr];
}

transfer

Parameters

Name	Type
_to	address
_amount	uint256

Properties

Visibility public

Mutability transaction

Modifiers

isTradable checks for the following:

One or more of the following: - owner must be equal to the sender's address - OR tradable must be equal to true

Source Code

function transfer(address _to, uint256 _amount)
  public
  isTradable
  returns (bool)
{
  // if sender's balance has enough unit and amount >= 0,
  //      and the sum is not overflow,
  // then do transfer
  if (
    (balances[msg.sender] >= _amount) &&
    (_amount >= 0) &&
    (balances[_to] + _amount > balances[_to])
  ) {
    balances[msg.sender] -= _amount;
    balances[_to] += _amount;
    Transfer(msg.sender, _to, _amount);
    return true;
  } else {
    return false;
  }
}

transferFrom

Parameters

Name	Type
_from	address
_to	address
_amount	uint256

Properties

Visibility public

Mutability transaction

Modifiers

isTradable checks for the following:

One or more of the following: - owner must be equal to the sender's address - OR tradable must be equal to true

Source Code

function transferFrom(
  address _from,
  address _to,
  uint256 _amount
) public isTradable returns (bool success) {
  if (
    balances[_from] >= _amount &&
    allowed[_from][msg.sender] >= _amount &&
    _amount > 0 &&
    balances[_to] + _amount > balances[_to]
  ) {
    balances[_from] -= _amount;
    allowed[_from][msg.sender] -= _amount;
    balances[_to] += _amount;
    Transfer(_from, _to, _amount);
    return true;
  } else {
    return false;
  }
}

approve

Parameters

Name	Type
_spender	address
_amount	uint256

Properties

Visibility public

Mutability transaction

Modifiers

isTradable checks for the following:

One or more of the following: - owner must be equal to the sender's address - OR tradable must be equal to true

Source Code

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

allowance

Parameters

Name	Type
_owner	address
_spender	address

Properties

Visibility public

Mutability constant

Source Code

function allowance(address _owner, address _spender)
  public
  constant
  returns (uint256 remaining)
{
  return allowed[_owner][_spender];
}

constructor

Parameters

This function has no parameters.

Properties

Visibility public

Mutability payable

Requirements

requestedUnits must be less than or equal to balances for owner

Source Code

function() public payable {
  buyGifto();
}

buyGifto

Parameters

This function has no parameters.

Properties

Visibility public

Mutability payable

Modifiers

onSale checks for the following:

_selling must be true

validValue checks for the following:

validInvestor checks for the following:

Requirements

requestedUnits must be less than or equal to balances for owner

Source Code

function buyGifto() public payable onSale validValue validInvestor {
  uint256 requestedUnits = (msg.value * _originalBuyPrice) / 10**18;
  require(balances[owner] >= requestedUnits);
  // prepare transfer data
  balances[owner] -= requestedUnits;
  balances[msg.sender] += requestedUnits;

  // increase total deposit amount
  deposit[msg.sender] += msg.value;

  // check total and auto turnOffSale
  totalTokenSold += requestedUnits;
  if (totalTokenSold >= _icoSupply) {
    _selling = false;
  }

  // submit transfer
  Transfer(owner, msg.sender, requestedUnits);
  owner.transfer(msg.value);
}

turnOnSale

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Source Code

function turnOnSale() public onlyOwner {
  _selling = true;
}

turnOffSale

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Source Code

function turnOffSale() public onlyOwner {
  _selling = false;
}

turnOnTradable

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Source Code

function turnOnTradable() public onlyOwner {
  tradable = true;
}

setIcoPercent

Parameters

Name	Type
newIcoPercent	uint256

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Source Code

function setIcoPercent(uint256 newIcoPercent) public onlyOwner {
  _icoPercent = newIcoPercent;
  _icoSupply = (_totalSupply * _icoPercent) / 100;
}

setMaximumBuy

Parameters

Name	Type
newMaximumBuy	uint256

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Source Code

function setMaximumBuy(uint256 newMaximumBuy) public onlyOwner {
  _maximumBuy = newMaximumBuy;
}

setBuyPrice

Parameters

Name	Type
newBuyPrice	uint256

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Requirements

newBuyPrice must be greater than 0

Source Code

function setBuyPrice(uint256 newBuyPrice) public onlyOwner {
  require(newBuyPrice > 0);
  _originalBuyPrice = newBuyPrice; // 3000 Gifto = 3000 00000 unit
  // control _maximumBuy_USD = 10,000 USD, Gifto price is 0.1USD
  // maximumBuy_Gifto = 100,000 Gifto = 100,000,00000 unit
  // 3000 Gifto = 1ETH => maximumETH = 100,000,00000 / _originalBuyPrice
  // 100,000,00000/3000 0000 ~ 33ETH => change to wei
  _maximumBuy = (10**18 * 10000000000) / _originalBuyPrice;
}

isApprovedInvestor

Parameters

Name	Type
_addr	address

Properties

Visibility public

Mutability constant

Source Code

function isApprovedInvestor(address _addr) public constant returns (bool) {
  return approvedInvestorList[_addr];
}

getDeposit

Parameters

Name	Type
_addr	address

Properties

Visibility public

Mutability constant

Source Code

function getDeposit(address _addr) public constant returns (uint256) {
  return deposit[_addr];
}

addInvestorList

Parameters

Name	Type
newInvestorList	address[]

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Source Code

function addInvestorList(address[] newInvestorList) public onlyOwner {
  for (uint256 i = 0; i < newInvestorList.length; i++) {
    approvedInvestorList[newInvestorList[i]] = true;
  }
}

removeInvestorList

Parameters

Name	Type
investorList	address[]

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Source Code

function removeInvestorList(address[] investorList) public onlyOwner {
  for (uint256 i = 0; i < investorList.length; i++) {
    approvedInvestorList[investorList[i]] = false;
  }
}

withdraw

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Source Code

function withdraw() public onlyOwner returns (bool) {
  return owner.send(this.balance);
}

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.

Gifto

ERC20

About

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.

Constants (3) keyboard_arrow_up

decimals Constant

symbol Constant

name Constant

State Variables (14) keyboard_arrow_up

_selling Variable

_totalSupply Variable

_originalBuyPrice Variable

owner Variable

_icoPercent Variable

_icoSupply Variable

_minimumBuy Variable

_maximumBuy Variable

totalTokenSold Variable

tradable Variable

balances Variable

allowed Variable

approvedInvestorList Variable

deposit 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

Modifiers help Modifiers are additions to a function that typically make various checks before the function is run.

isTradable checks for the following:

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

Modifiers help Modifiers are additions to a function that typically make various checks before the function is run.

isTradable checks for the following:

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

Modifiers help Modifiers are additions to a function that typically make various checks before the function is run.

isTradable checks for the following:

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

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

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

buyGifto keyboard_arrow_up

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

Properties

Modifiers help Modifiers are additions to a function that typically make various checks before the function is run.

onSale checks for the following:

validValue checks for the following:

validInvestor checks for the following:

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

turnOnSale keyboard_arrow_up

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

Properties

Modifiers help Modifiers are additions to a function that typically make various checks before the function is run.

onlyOwner checks for the following:

Source Code

turnOffSale keyboard_arrow_up

Events (2)

Parameters

Parameters

Constants (3)

State Variables (14)

totalSupply

Parameters

balanceOf

Parameters

transfer

Parameters

Modifiers

transferFrom

Parameters

Modifiers

approve

Parameters

Modifiers

allowance

Parameters

constructor

Parameters

Requirements

buyGifto

Parameters

Modifiers

Requirements

turnOnSale

Parameters

Modifiers

turnOffSale

Parameters

Modifiers

turnOnTradable

Parameters

Modifiers

setIcoPercent

Parameters

Modifiers

setMaximumBuy

Parameters

Modifiers

setBuyPrice

Parameters

Modifiers

Requirements

isApprovedInvestor

Parameters

getDeposit

Parameters

addInvestorList

Parameters

Modifiers

removeInvestorList

Parameters

Modifiers

withdraw

Parameters

Modifiers