Qubitica

0x1602af2c782cc03f9241992e243290fccf73bb13 Copy

ERC20

This contract is an ERC20 token.

Name Qubitica

Symbol QBIT

Decimals 18

Total Supply 10,000,000 QBIT

About

Stats

Public Functions 15

Event Types 3

Code Size 8,654 bytes

Events (3)

Approval Event

Parameters

tokenOwner	address
spender	address
tokens	uint

OwnershipTransferred Event

Parameters

_from	address
_to	address

Transfer Event

Parameters

from	address
to	address
tokens	uint

State Variables (8)

symbol Variable

string

name Variable

string

decimals Variable

uint8

_totalSupply Variable

uint

owner Variable

address

newOwner Variable

address

balances Variable

mapping(address => uint)

Internal Variable

allowed Variable

mapping(address => mapping(address => uint))

Internal Variable

Functions Expand All Collapse All

safeAdd

Parameters

Name	Type
a	uint
b	uint

Properties

Visibility public

Mutability pure

Requirements

c must be greater than or equal to a

Source Code

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

safeSub

Parameters

Name	Type
a	uint
b	uint

Properties

Visibility public

Mutability pure

Requirements

b must be less than or equal to a

Source Code

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

safeMul

Parameters

Name	Type
a	uint
b	uint

Properties

Visibility public

Mutability pure

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) public pure returns (uint256 c) {
  c = a * b;
  require(a == 0 || c / a == b);
}

safeDiv

Parameters

Name	Type
a	uint
b	uint

Properties

Visibility public

Mutability pure

Requirements

b must be greater than 0

Source Code

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

transferOwnership

Parameters

Name	Type
_newOwner	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Source Code

function transferOwnership(address _newOwner) public onlyOwner {
  newOwner = _newOwner;
}

acceptOwnership

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Requirements

newOwner must be equal to the sender's address

Source Code

function acceptOwnership() public {
  require(msg.sender == newOwner);
  OwnershipTransferred(owner, newOwner);
  owner = newOwner;
  newOwner = address(0);
}

totalSupply

Parameters

This function has no parameters.

Properties

Visibility public

Mutability constant

Source Code

function totalSupply() public constant returns (uint256) {
  return _totalSupply - balances[address(0)];
}

balanceOf

Parameters

Name	Type
tokenOwner	address

Properties

Visibility public

Mutability constant

Source Code

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

allowance

Parameters

Name	Type
tokenOwner	address
spender	address

Properties

Visibility public

Mutability constant

Source Code

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

transfer

Parameters

Name	Type
to	address
tokens	uint

Properties

Visibility public

Mutability 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);
  Transfer(msg.sender, to, tokens);
  return true;
}

approve

Parameters

Name	Type
spender	address
tokens	uint

Properties

Visibility public

Mutability transaction

Source Code

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

transferFrom

Parameters

Name	Type
from	address
to	address
tokens	uint

Properties

Visibility public

Mutability 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);
  Transfer(from, to, tokens);
  return true;
}

approveAndCall

Parameters

Name	Type
spender	address
tokens	uint
data	bytes

Properties

Visibility public

Mutability transaction

Source Code

function approveAndCall(
  address spender,
  uint256 tokens,
  bytes data
) public returns (bool success) {
  allowed[msg.sender][spender] = tokens;
  Approval(msg.sender, spender, tokens);
  ApproveAndCallFallBack(spender).receiveApproval(
    msg.sender,
    tokens,
    this,
    data
  );
  return true;
}

constructor

Parameters

This function has no parameters.

Properties

Visibility public

Mutability payable

Source Code

function() public payable {
  revert();
}

transferAnyERC20Token

Parameters

Name	Type
tokenAddress	address
tokens	uint

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Source Code

function transferAnyERC20Token(address tokenAddress, uint256 tokens)
  public
  onlyOwner
  returns (bool success)
{
  return ERC20Interface(tokenAddress).transfer(owner, tokens);
}

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.

Qubitica

ERC20

About

Stats

Events (3) keyboard_arrow_up

Approval Event

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

OwnershipTransferred 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 (8) keyboard_arrow_up

symbol Variable

name Variable

decimals Variable

_totalSupply Variable

owner Variable

newOwner Variable

balances Variable

allowed Variable

Functions Expand All Collapse All

safeAdd 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

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

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

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

transferOwnership 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

acceptOwnership 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

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

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

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

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

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

Source Code

approveAndCall 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

Events (3)

Parameters

Parameters

Parameters

State Variables (8)

safeAdd

Parameters

Requirements

safeSub

Parameters

Requirements

safeMul

Parameters

Requirements

safeDiv

Parameters

Requirements

transferOwnership

Parameters

Modifiers

acceptOwnership

Parameters

Requirements

totalSupply

Parameters

balanceOf

Parameters

allowance

Parameters

transfer

Parameters

approve

Parameters

transferFrom

Parameters

approveAndCall

Parameters

constructor

Parameters

transferAnyERC20Token

Parameters

Modifiers