mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
65 lines
2.3 KiB
Solidity
65 lines
2.3 KiB
Solidity
pragma experimental ABIEncoderV2;
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contract C {
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function enc_packed_bytes(bytes calldata data, uint256 start, uint256 end) external returns (bytes memory) {
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return abi.encodePacked(data[start:end]);
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}
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function enc_packed_bytes_reference(bytes calldata data, uint256 start, uint256 end) external returns (bytes memory) {
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return abi.encodePacked(bytes(data[start:end]));
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}
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function enc_bytes(bytes calldata data, uint256 start, uint256 end) external returns (bytes memory) {
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return abi.encode(data[start:end]);
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}
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function enc_bytes_reference(bytes calldata data, uint256 start, uint256 end) external returns (bytes memory) {
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return abi.encode(bytes(data[start:end]));
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}
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function enc_uint256(uint256[] calldata x, uint256 start, uint256 end) external returns (bytes memory) {
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return abi.encode(x[start:end]);
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}
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function enc_uint256_reference(uint256[] calldata x, uint256 start, uint256 end) external returns (bytes memory) {
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return abi.encode(x[start:end]);
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}
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function enc_packed_uint256(uint256[] calldata x, uint256 start, uint256 end) external returns (bytes memory) {
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return abi.encodePacked(x[start:end]);
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}
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function enc_packed_uint256_reference(uint256[] calldata x, uint256 start, uint256 end) external returns (bytes memory) {
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return abi.encodePacked(x[start:end]);
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}
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function compare(bytes memory x, bytes memory y) internal {
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assert(x.length == y.length);
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for (uint i = 0; i < x.length; ++i)
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assert(x[i] == y[i]);
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}
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function test_bytes() public {
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bytes memory test = new bytes(3);
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test[0] = 0x41; test[1] = 0x42; test[2] = 0x42;
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for (uint i = 0; i < test.length; i++)
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for (uint j = i; j <= test.length; j++)
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{
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compare(this.enc_packed_bytes(test, i, j), this.enc_packed_bytes_reference(test, i, j));
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compare(this.enc_bytes(test, i, j), this.enc_bytes_reference(test, i, j));
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}
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}
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function test_uint256() public {
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uint256[] memory test = new uint256[](3);
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test[0] = 0x41; test[1] = 0x42; test[2] = 0x42;
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for (uint i = 0; i < test.length; i++)
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for (uint j = i; j <= test.length; j++)
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{
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compare(this.enc_packed_uint256(test, i, j), this.enc_packed_uint256_reference(test, i, j));
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compare(this.enc_uint256(test, i, j), this.enc_uint256_reference(test, i, j));
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}
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}
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}
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// ====
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// compileViaYul: also
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// EVMVersion: >homestead
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// ----
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// test_bytes() ->
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// test_uint256() ->
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