How to cast address to address payable in solidity 0.5.0

Question

Got address from 3rd-party library:

address wallet = rlp[5].toAddress();

And wanna transfer some funds to it:

wallet.transfer(amount);

Got error:

TypeError: Member "transfer" not found or not visible after argument-dependent lookup in address.
        wallet.transfer(amount);
        ^-------------^

And casts not works:

((address payable)(wallet)).transfer(amount);

Answer 1

Solidity 0.6.x:

Here is how to cast address to address payable:

address addr = 0x****;
address payable wallet = payable(addr);

And contract cast to address payable:

MyContract addr = MyContract(0x****);
address payable wallet = payable(address(addr));

Solidity 0.5.x:

Here is how to cast address to address payable:

address addr = 0x****;
address payable wallet = address(uint160(addr));

And contract cast to address payable:

MyContract addr = MyContract(0x****);
address payable wallet = address(uint160(address(addr)));

Answer 2

In Solidity ^0.6.0, you can just use payable(addr). Ref: https://solidity.readthedocs.io/en/v0.6.0/types.html#address