call
or staticall
, delegatecall
and callcode
are not allowed.owner
to spender
is stored at the slot whose location is calculated as uint(sha256(abi.encodePacked(uint(owner), uint(spender))
. The size of this slot is not required to be 32-byte long and you can NOT read its value with eth_getStorageAt
._owner
.eth_getBalance
function in Web3 API._value
amount of BCH to address _to
, and fire the Transfer event. The function throws if the message callerβs account balance does not have enough tokens to spend._value
amount of BCH from address _from
to address _to
, and fires the Transfer event._from
account has deliberately authorized the sender of the message via allowance control._spender
to withdraw from your account multiple times, up to the _value
amount of BCH. If this function is called again it overwrites the current allowance with _value
._spender
is still allowed to withdraw from _owner
._spender
is still allowed to withdraw from you._spender
is still allowed to withdraw from you.approve(address _spender, uint256 _value)
, increaseAllowance(address _spender, uint256 _delta)
or decreaseAllowance(address _spender, uint256 _delta)
.