Golem Network Token
ERC20
This contract is an ERC20 token.
Name
Golem Network Token
Symbol
GLM
Decimals
18
Total Supply
510,647,147 GLM
About
link
description
Golem (GLM) is a cryptocurrency and operates on the Ethereum platform. Golem has a current supply of 1,000,000,000. The last known price of Golem is 0.28844978 USD and is down -0.86 over the last 24 hours. It is currently trading on 46 active market(s) with $6,787,932.73 traded over the last 24 hours. More information can be found at https://golem.network/.
Stats
Public Functions
13
Event Types
4
Code Size
22,707 bytes
Events (4) keyboard_arrow_up
State Variables (9) keyboard_arrow_up
Functions
isMinter keyboard_arrow_up
addMinter keyboard_arrow_up
renounceMinter keyboard_arrow_up
totalSupply keyboard_arrow_up
balanceOf keyboard_arrow_up
transfer keyboard_arrow_up
Requirements help
Source Code
function transfer(address recipient, uint256 amount) public returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
allowance keyboard_arrow_up
approve keyboard_arrow_up
Requirements help
Source Code
function approve(address spender, uint256 amount) public returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
transferFrom keyboard_arrow_up
Requirements help
Source Code
function transferFrom(
address sender,
address recipient,
uint256 amount
) public returns (bool) {
_transfer(sender, recipient, amount);
if (sender != msg.sender && allowance(sender, msg.sender) != uint256(-1)) {
_approve(
sender,
msg.sender,
allowance(sender, msg.sender).sub(
amount,
"ERC20: transfer amount exceeds allowance"
)
);
}
return true;
}
increaseAllowance keyboard_arrow_up
Requirements help
Source Code
function increaseAllowance(address spender, uint256 addedValue)
public
returns (bool)
{
_approve(
_msgSender(),
spender,
_allowances[_msgSender()][spender].add(addedValue)
);
return true;
}
decreaseAllowance keyboard_arrow_up
Requirements help
Source Code
function decreaseAllowance(address spender, uint256 subtractedValue)
public
returns (bool)
{
_approve(
_msgSender(),
spender,
_allowances[_msgSender()][spender].sub(
subtractedValue,
"ERC20: decreased allowance below zero"
)
);
return true;
}
mint keyboard_arrow_up
Modifiers help
onlyMinter checks for the following:
null
Source Code
function mint(address account, uint256 amount)
public
onlyMinter
returns (bool)
{
_mint(account, amount);
return true;
}
permit keyboard_arrow_up
Parameters help
Requirements help
Source Code
function permit(
address holder,
address spender,
uint256 nonce,
uint256 expiry,
bool allowed,
uint8 v,
bytes32 r,
bytes32 s
) external {
bytes32 digest = keccak256(
abi.encodePacked(
"\x19\x01",
DOMAIN_SEPARATOR,
keccak256(
abi.encode(PERMIT_TYPEHASH, holder, spender, nonce, expiry, allowed)
)
)
);
require(holder != address(0), "Ngnt/invalid-address-0");
require(holder == ecrecover(digest, v, r, s), "Ngnt/invalid-permit");
require(expiry == 0 || now <= expiry, "Ngnt/permit-expired");
require(nonce == nonces[holder]++, "Ngnt/invalid-nonce");
uint256 wad = allowed ? uint256(-1) : 0;
_approve(holder, spender, wad);
}
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 ERC20._transfer keyboard_arrow_up
Requirements help
Source Code
function _transfer(
address sender,
address recipient,
uint256 amount
) internal {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_balances[sender] = _balances[sender].sub(
amount,
"ERC20: transfer amount exceeds balance"
);
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
}
internal ERC20._mint keyboard_arrow_up
Source Code
function _mint(address account, uint256 amount) internal {
require(account != address(0), "ERC20: mint to the zero address");
_totalSupply = _totalSupply.add(amount);
_balances[account] = _balances[account].add(amount);
emit Transfer(address(0), account, amount);
}
internal ERC20._burn keyboard_arrow_up
Source Code
function _burn(address account, uint256 amount) internal {
require(account != address(0), "ERC20: burn from the zero address");
_balances[account] = _balances[account].sub(
amount,
"ERC20: burn amount exceeds balance"
);
_totalSupply = _totalSupply.sub(amount);
emit Transfer(account, address(0), amount);
}
internal ERC20._approve keyboard_arrow_up
Requirements help
Source Code
function _approve(
address owner,
address spender,
uint256 amount
) internal {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
internal ERC20._burnFrom keyboard_arrow_up
Requirements help
Source Code
function _burnFrom(address account, uint256 amount) internal {
_burn(account, amount);
_approve(
account,
_msgSender(),
_allowances[account][_msgSender()].sub(
amount,
"ERC20: burn amount exceeds allowance"
)
);
}
internal Context.constructor keyboard_arrow_up
internal Context._msgSender keyboard_arrow_up
internal Context._msgData keyboard_arrow_up
Parameters help
This function has no parameters.
Source Code
function _msgData() internal view returns (bytes memory) {
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
return msg.data;
}
internal MinterRole.constructor keyboard_arrow_up
internal MinterRole._addMinter keyboard_arrow_up
internal MinterRole._removeMinter keyboard_arrow_up
internal Context.constructor keyboard_arrow_up
internal Context._msgSender keyboard_arrow_up
internal Context._msgData keyboard_arrow_up
Parameters help
This function has no parameters.
Source Code
function _msgData() internal view returns (bytes memory) {
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
return msg.data;
}