ERC20
Developer note: Implementation of the {IERC20} interface. This implementation is agnostic to the way tokens are created. This means that a supply mechanism has to be added in a derived contract using {_mint}. For a generic mechanism see {ERC20PresetMinterPauser}. TIP: For a detailed writeup see our guide https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How to implement supply mechanisms]. We have followed general OpenZeppelin guidelines: functions revert instead of returning `false` on failure. This behavior is nonetheless conventional and does not conflict with the expectations of ERC20 applications. Additionally, an {Approval} event is emitted on calls to {transferFrom}. This allows applications to reconstruct the allowance for all accounts just by listening to said events. Other implementations of the EIP may not emit these events, as it isn't required by the specification. Finally, the non-standard {decreaseAllowance} and {increaseAllowance} functions have been added to mitigate the well-known issues around setting allowances. See {IERC20-approve}.
Functions
constructor
constructor(string,string) public
name_
string
symbol_
string
name
name() view public
Returns:
[0]
string
symbol
symbol() view public
Returns:
[0]
string
decimals
decimals() view public
Returns:
[0]
uint8
totalSupply
totalSupply() view public
Returns:
[0]
uint256
balanceOf
balanceOf(address) view public
account
address
Returns:
[0]
uint256
transfer
transfer(address,uint256) public
recipient
address
amount
uint256
Returns:
[0]
bool
allowance
allowance(address,address) view public
owner
address
spender
address
Returns:
[0]
uint256
approve
approve(address,uint256) public
spender
address
amount
uint256
Returns:
[0]
bool
transferFrom
transferFrom(address,address,uint256) public
sender
address
recipient
address
amount
uint256
Returns:
[0]
bool
increaseAllowance
increaseAllowance(address,uint256) public
spender
address
addedValue
uint256
Returns:
[0]
bool
decreaseAllowance
decreaseAllowance(address,uint256) public
spender
address
subtractedValue
uint256
Returns:
[0]
bool