solidity/test/libsolidity/semanticTests/array/concat/bytes_concat_as_argument.sol

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contract C {
function f(bytes memory a, bytes memory b) public returns (bytes32) {
return keccak256(bytes.concat(a, b));
}
function h(bytes memory a) internal returns (uint256) {
return a.length;
}
function g(bytes memory a, bytes memory b) public returns (uint256) {
return h(bytes.concat(a, b));
}
}
// ====
// ----
// f(bytes,bytes): 0x40, 0x80, 32, "abcdabcdabcdabcdabcdabcdabcdabcd", 5, "bcdef" -> 0x1106e19b6f06d1cce71c2d816754f83dfa5b95df958c5cbf12b7c472320c427c
// g(bytes,bytes): 0x40, 0x80, 32, "abcdabcdabcdabcdabcdabcdabcdabcd", 5, "bcdef" -> 37