ERC20
This contract is an ERC20 token.
Name
ERC20
Symbol
ERC20
Decimals
18
Total Supply
12,999,999,999 ERC20
About
link
description
ERC20 (ERC20) is a cryptocurrency launched in 2018and operates on the Ethereum platform. ERC20 has a current supply of 12,999,999,994.06 with 1,128,632,512.4217153 in circulation. The last known price of ERC20 is 0.01838296 USD and is up 20.39 over the last 24 hours. It is currently trading on 13 active market(s) with $10,347.13 traded over the last 24 hours. More information can be found at https://erc20.tech.
Identical Contracts
The following contracts have identical source code.
Stats
Public Functions
6
Event Types
2
Code Size
9,811 bytes
Functions
transfer keyboard_arrow_up
Requirements help
Source Code
function transfer(address _to, uint256 _value) public {
_transfer(msg.sender, _to, _value);
}
transferFrom keyboard_arrow_up
Requirements help
Source Code
function transferFrom(
address _from,
address _to,
uint256 _value
) public returns (bool success) {
require(_value <= allowance[_from][msg.sender]); // Check allowance
allowance[_from][msg.sender] -= _value;
_transfer(_from, _to, _value);
return true;
}
approve keyboard_arrow_up
approveAndCall keyboard_arrow_up
Source Code
function approveAndCall(
address _spender,
uint256 _value,
bytes _extraData
) public returns (bool success) {
tokenRecipient spender = tokenRecipient(_spender);
if (approve(_spender, _value)) {
spender.receiveApproval(msg.sender, _value, this, _extraData);
return true;
}
}
burn keyboard_arrow_up
Requirements help
Source Code
function burn(uint256 _value) public returns (bool success) {
require(balanceOf[msg.sender] >= _value); // Check if the sender has enough
balanceOf[msg.sender] -= _value; // Subtract from the sender
totalSupply -= _value; // Updates totalSupply
Burn(msg.sender, _value);
return true;
}
burnFrom keyboard_arrow_up
Requirements help
Source Code
function burnFrom(address _from, uint256 _value) public returns (bool success) {
require(balanceOf[_from] >= _value); // Check if the targeted balance is enough
require(_value <= allowance[_from][msg.sender]); // Check allowance
balanceOf[_from] -= _value; // Subtract from the targeted balance
allowance[_from][msg.sender] -= _value; // Subtract from the sender's allowance
totalSupply -= _value; // Update totalSupply
Burn(_from, _value);
return true;
}
Internal Functions
Internal functions are parts of the contract that can't be used directly, but instead are used by the public functions listed above.
internal TokenERC20._transfer keyboard_arrow_up
Requirements help
Source Code
function _transfer(
address _from,
address _to,
uint256 _value
) internal {
// Prevent transfer to 0x0 address. Use burn() instead
require(_to != 0x0);
// Check if the sender has enough
require(balanceOf[_from] >= _value);
// Check for overflows
require(balanceOf[_to] + _value > balanceOf[_to]);
// Save this for an assertion in the future
uint256 previousBalances = balanceOf[_from] + balanceOf[_to];
// Subtract from the sender
balanceOf[_from] -= _value;
// Add the same to the recipient
balanceOf[_to] += _value;
Transfer(_from, _to, _value);
// Asserts are used to use static analysis to find bugs in your code. They should never fail
assert(balanceOf[_from] + balanceOf[_to] == previousBalances);
}
