File refactoring + created Bin

This commit is contained in:
Sowmayjain 2019-03-23 04:07:27 +05:30
parent d930d404b0
commit ff2657a11a
5 changed files with 13 additions and 34 deletions

View File

@ -1,7 +1,18 @@
pragma solidity 0.5.0;
pragma solidity ^0.5.0;
import "./safemath.sol";
library SafeMath {
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "Assertion Failed");
return c;
}
}
interface IERC20 {
function balanceOf(address who) external view returns (uint256);

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@ -1,32 +0,0 @@
pragma solidity 0.5.0;
library SafeMath {
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "Assertion Failed");
return c;
}
function div(uint256 a, uint256 b) internal pure returns (uint256) {
require(b > 0, "Assertion Failed");
uint256 c = a / b;
return c;
}
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
assert(b <= a);
return a - b;
}
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
assert(c >= a);
return c;
}
}