mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
70 lines
2.4 KiB
Solidity
70 lines
2.4 KiB
Solidity
contract C {
|
|
function enc_packed_bytes(bytes calldata data, uint256 start, uint256 end) external returns (bytes memory) {
|
|
return abi.encodePacked(data[start:end]);
|
|
}
|
|
function enc_packed_bytes_reference(bytes calldata data, uint256 start, uint256 end) external returns (bytes memory) {
|
|
return abi.encodePacked(bytes(data[start:end]));
|
|
}
|
|
|
|
function enc_bytes(bytes calldata data, uint256 start, uint256 end) external returns (bytes memory) {
|
|
return abi.encode(data[start:end]);
|
|
}
|
|
function enc_bytes_reference(bytes calldata data, uint256 start, uint256 end) external returns (bytes memory) {
|
|
return abi.encode(bytes(data[start:end]));
|
|
}
|
|
|
|
function enc_uint256(uint256[] calldata x, uint256 start, uint256 end) external returns (bytes memory) {
|
|
return abi.encode(x[start:end]);
|
|
}
|
|
function enc_uint256_reference(uint256[] calldata x, uint256 start, uint256 end) external returns (bytes memory) {
|
|
return abi.encode(x[start:end]);
|
|
}
|
|
|
|
function enc_packed_uint256(uint256[] calldata x, uint256 start, uint256 end) external returns (bytes memory) {
|
|
return abi.encodePacked(x[start:end]);
|
|
}
|
|
function enc_packed_uint256_reference(uint256[] calldata x, uint256 start, uint256 end) external returns (bytes memory) {
|
|
return abi.encodePacked(x[start:end]);
|
|
}
|
|
|
|
function compare(bytes memory x, bytes memory y) internal {
|
|
assert(x.length == y.length);
|
|
for (uint i = 0; i < x.length; ++i)
|
|
assert(x[i] == y[i]);
|
|
}
|
|
|
|
function test_bytes() public {
|
|
bytes memory test = new bytes(3);
|
|
test[0] = 0x41; test[1] = 0x42; test[2] = 0x42;
|
|
for (uint i = 0; i < test.length; i++)
|
|
for (uint j = i; j <= test.length; j++)
|
|
{
|
|
compare(this.enc_packed_bytes(test, i, j), this.enc_packed_bytes_reference(test, i, j));
|
|
compare(this.enc_bytes(test, i, j), this.enc_bytes_reference(test, i, j));
|
|
}
|
|
}
|
|
|
|
function test_uint256() public {
|
|
uint256[] memory test = new uint256[](3);
|
|
test[0] = 0x41; test[1] = 0x42; test[2] = 0x42;
|
|
for (uint i = 0; i < test.length; i++)
|
|
for (uint j = i; j <= test.length; j++)
|
|
{
|
|
compare(this.enc_packed_uint256(test, i, j), this.enc_packed_uint256_reference(test, i, j));
|
|
compare(this.enc_uint256(test, i, j), this.enc_uint256_reference(test, i, j));
|
|
}
|
|
}
|
|
}
|
|
// ====
|
|
// EVMVersion: >homestead
|
|
// compileViaYul: also
|
|
// ----
|
|
// test_bytes() ->
|
|
// gas irOptimized: 516922
|
|
// gas legacy: 466763
|
|
// gas legacyOptimized: 374537
|
|
// test_uint256() ->
|
|
// gas irOptimized: 712790
|
|
// gas legacy: 634592
|
|
// gas legacyOptimized: 499481
|