Solidity API

IERC20Extended

Interface for additional ERC20 functionality beyond the standard specification Inherits from IERC20ExtendedInternal to include internal function definitions These extensions provide safer alternatives to the standard approve mechanism by allowing incremental changes to allowances

increaseAllowance

function increaseAllowance(address spender, uint256 amount) external returns (bool)

Increase the allowance granted to a spender

Atomically increases the allowance granted to spender by the caller This is an alternative to {approve} that can be used as a mitigation for the double-spend race condition that can occur with standard ERC20 approve

Parameters

Name	Type	Description
spender	address	The address which will be granted an increased allowance
amount	uint256	The amount by which to increase the allowance

Return Values

Name	Type	Description
[0]	bool	success Always returns true (reverts on failure)

decreaseAllowance

function decreaseAllowance(address spender, uint256 amount) external returns (bool)

Decrease the allowance granted to a spender

Atomically decreases the allowance granted to spender by the caller This is an alternative to {approve} that can be used to reduce or revoke a spender's allowance

Parameters

Name	Type	Description
spender	address	The address whose allowance will be reduced
amount	uint256	The amount by which to decrease the allowance

Return Values

Name	Type	Description
[0]	bool	success Always returns true (reverts on failure)