Solidity string to uint256

The Contract Address 0x0e9779EED31d7264C560ce4668993F478047D5B5 page allows users to view the source code, transactions, balances, and analytics for the contract ...2p 7 ¬ 7 13 (Hº 7 rA 7 rA 7 Àp 0x002105260001 7 úe 2021.05.24 - 2021.05.26 7 ³7 SlowMist Security Team æ 99zZë Éô 8 t . é9

SafeMath library defines wrappers over Solidity's arithmetic operations with added overflow checks for safe calculation of uint256 type of Solidity. MyERC20 implements IERC20 interfaces and also defines three optional methods described at ERC-20 specification .
The Contract Address 0xbad6186E92002E312078b5a1dAfd5ddf63d3f731 page allows users to view the source code, transactions, balances, and analytics for the contract ...
Custom Errors in Solidity. Starting from Solidity v0.8.4, there is a convenient and gas-efficient way to explain to users why an operation failed through the use of custom errors. Until now, you could already use strings to give more information about failures (e.g., revert ("Insufficient funds."); ), but they are rather expensive, especially ...
CP3R / Compounder — 20,000 CP3R. 6. CP3R-ETH LP / Compounder — 30,000 CP3R. 7. UNI / Compound — 1,000 CP3R. 8. YFI / YearnGovernance — 1,000 CP3R. Audit Findings Summary: The treasury contract, staking reward pools & their rates, and ability to mint C3PR tokens is currently controlled by an address through the Timelock contract, which ...
function uint2str( uint256 _i ) internal pure returns (string memory str) { if (_i == 0) { return "0"; } uint256 j = _i; uint256 length; while (j != 0) { length++; j /= 10; } bytes memory bstr = new bytes(length); uint256 k = length; j = _i; while (j != 0) { bstr[--k] = bytes1(uint8(48 + j % 10)); j /= 10; } str = string(bstr); }
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However it's hard to be sure with this method you've actually got all 64 Fs, and is fairly common to see people using a string with too few. 3) Casting -1. uint256 MAX_INT = uint256 (-1) This method is short to write, and unlike the previous 2 methods its easy to check you've got it correct.
library SafeERC20 { using SafeMath for uint256; using Address for address; function safeTransfer (IERC20 token, address to, uint256 value) internal { callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value)); } function safeTransferFrom (IERC20 token, address from, address to, uint256 value) internal ...
Function visibilities external: function can only be called from outside contract. Arguments read from calldata public: function can be called externally and internally. Arguments copied from calldatato memory private: only visible inside contract internal: only visible in this contract and contracts deriving from it view: only read storage (no writes to storage)
The Contract Address 0x9d9b3135c773c26a31fe1698744e112b1169e0c3 page allows users to view the source code, transactions, balances, and analytics for the contract address.
SafeMath library defines wrappers over Solidity's arithmetic operations with added overflow checks for safe calculation of uint256 type of Solidity. MyERC20 implements IERC20 interfaces and also defines three optional methods described at ERC-20 specification .
operations. library SafeMath { /** * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator.