//Write your own contracts here. Currently compiles using solc v0.4.15+commit.bbb8e64f. pragma solidity ^0.4.18; library SafeMath { /** * @dev Multiplies two numbers, throws on overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a * b; assert(c / a == b); return c; } /** * @dev Integer division of two numbers, truncating the quotient. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { // assert(b > 0); // Solidity automatically throws when dividing by 0 uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Substracts two numbers, throws on overflow (i.e. if subtrahend is greater than minuend). */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { assert(b <= a); return a - b; } /** * @dev Adds two numbers, throws on overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; assert(c >= a); return c; } } contract Deposit { using SafeMath for uint256; uint256 public totalDepositAmount = 0; mapping(address => uint256) balances; function() public payable { uint256 amount = msg.value; require( amount > 0); balances[msg.sender] = amount; totalDepositAmount += amount; } function myBalance() public view returns(uint256) { return balances[msg.sender]; } function totalDepositAmount() public view returns(uint256) { return totalDepositAmount; } function claim() public { address claimer = msg.sender; require(balances[claimer] > 0); uint returnAmount = balances[claimer]; totalDepositAmount -= returnAmount; claimer.transfer(returnAmount); balances[claimer] = 0; } }
0.4.18