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Created using remix-ide: Realtime Ethereum Contract Compiler and Runtime. Load this file by pasting this gists URL or ID at https://remix.ethereum.org/#version=soljson-v0.8.3+commit.8d00100c.js&optimize=false&runs=200&gist=
//SPDX-License-Identifier: MIT
pragma solidity 0.8.3;
contract FunctionsExample {
mapping(address => uint) public balanceReceived;
address payable owner;
constructor() {
owner = payable(msg.sender);
}
function destroySmartContract() public {
require(msg.sender == owner, "You are not the owner");
selfdestruct(owner);
}
function getOwner() public view returns(address) {
return owner;
}
function convertWeiToEth(uint _amount) public pure returns(uint) {
return _amount / 1 ether;
}
function receiveMoney() public payable {
assert(balanceReceived[msg.sender] + msg.value >= balanceReceived[msg.sender]);
balanceReceived[msg.sender] += msg.value;
}
function withdrawMoney(address payable _to, uint _amount) public {
require(_amount <= balanceReceived[msg.sender], "not enough funds.");
assert(balanceReceived[msg.sender] >= balanceReceived[msg.sender] - _amount);
balanceReceived[msg.sender] -= _amount;
_to.transfer(_amount);
}
receive() external payable {
receiveMoney();
}
}
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