//Write your own contracts here. Currently compiles using solc v0.4.15+commit.bbb8e64f. pragma solidity ^0.4.25; contract TestGasUsage { bytes32 test32 = 'nUSD'; bytes4 test4 = 'nUSD'; function set32() public returns (bytes32){ test32 = 'nAUD'; return test32; } function set4() public returns (bytes4){ test4 = 'nAUD'; return test4; } } 0.4.25