function concatStorage(bytes _preBytes, bytes _postBytes) internal
function equalStorage(bytes _preBytes, bytes _postBytes) internal view returns (bool)
function concat(bytes _preBytes, bytes _postBytes) internal pure returns (bytes)
function slice(bytes _bytes, uint256 _start, uint256 _length) internal pure returns (bytes res)
function toAddress(bytes _bytes, uint256 _start) internal pure returns (address)
function toUint8(bytes _bytes, uint256 _start) internal pure returns (uint8)
function toUint(bytes _bytes, uint256 _start) internal pure returns (uint256)
function equal(bytes _preBytes, bytes _postBytes) internal pure returns (bool)
function toBytes32(bytes _source) internal pure returns (bytes32 result)
function keccak256Slice(bytes _bytes, uint256 _start, uint256 _length) internal pure returns (bytes32 result)