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	Type	Description
name_	string
symbol_	string

name

name() view public

Returns:

Name	Type	Description
[0]	string

symbol

symbol() view public

Returns:

Name	Type	Description
[0]	string

decimals

decimals() view public

Returns:

Name	Type	Description
[0]	uint8

totalSupply

totalSupply() view public

Returns:

Name	Type	Description
[0]	uint256

balanceOf

balanceOf(address) view public

Name	Type	Description
account	address

Returns:

Name	Type	Description
[0]	uint256

transfer

transfer(address,uint256) public

Name	Type	Description
recipient	address
amount	uint256

Returns:

Name	Type	Description
[0]	bool

allowance

allowance(address,address) view public

Name	Type	Description
owner	address
spender	address

Returns:

Name	Type	Description
[0]	uint256

approve

approve(address,uint256) public

Name	Type	Description
spender	address
amount	uint256

Returns:

Name	Type	Description
[0]	bool

transferFrom

transferFrom(address,address,uint256) public

Name	Type	Description
sender	address
recipient	address
amount	uint256

Returns:

Name	Type	Description
[0]	bool

increaseAllowance

increaseAllowance(address,uint256) public

Name	Type	Description
spender	address
addedValue	uint256

Returns:

Name	Type	Description
[0]	bool

decreaseAllowance

decreaseAllowance(address,uint256) public

Name	Type	Description
spender	address
subtractedValue	uint256

Returns:

Name	Type	Description
[0]	bool

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