pitrou commented on code in PR #47573: URL: https://github.com/apache/arrow/pull/47573#discussion_r2435609840
########## cpp/src/arrow/util/bpacking_scalar_codegen.py: ########## @@ -0,0 +1,264 @@ +#!/bin/python + +# Licensed to the Apache Software Foundation (ASF) under one +# or more contributor license agreements. See the NOTICE file +# distributed with this work for additional information +# regarding copyright ownership. The ASF licenses this file +# to you under the Apache License, Version 2.0 (the +# "License"); you may not use this file except in compliance +# with the License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, +# software distributed under the License is distributed on an +# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +# KIND, either express or implied. See the License for the +# specific language governing permissions and limitations +# under the License. + +# This script is modified from its original version in GitHub. Original source: +# https://github.com/lemire/FrameOfReference/blob/146948b6058a976bc7767262ad3a2ce201486b93/scripts/turbopacking64.py + +# Usage: +# python bpacking64_codegen.py > bpacking64_default_internal.h + + +import dataclasses +import sys + + +LICENSE = """// Licensed to the Apache Software Foundation (ASF) under one +// or more contributor license agreements. See the NOTICE file +// distributed with this work for additional information +// regarding copyright ownership. The ASF licenses this file +// to you under the Apache License, Version 2.0 (the +// "License"); you may not use this file except in compliance +// with the License. You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, +// software distributed under the License is distributed on an +// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +// KIND, either express or implied. See the License for the +// specific language governing permissions and limitations +// under the License. + +// This file was generated by script which is modified from its original version in GitHub. +// Original source: +// https://github.com/lemire/FrameOfReference/blob/master/scripts/turbopacking64.py +// The original copyright notice follows. + +// This code is released under the +// Apache License Version 2.0 http://www.apache.org/licenses/. +// (c) Daniel Lemire 2013 +""" + +HEADER = """ +#pragma once + +#include <cstdint> +#include <cstring> + +#include "arrow/util/endian.h" +#include "arrow/util/ubsan.h" + +namespace arrow::internal { +namespace { + +template <typename Int> +Int LoadInt(const uint8_t* in) { + return bit_util::FromLittleEndian(util::SafeLoadAs<Int>(in)); +} +""" + +FOOTER = """ +} // namespace +} // namespace arrow::internal +""" + + [email protected] +class ScalarUnpackGenerator: + out_type: str + smart_halve: bool Review Comment: Do you want to add a comment explaining this? -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
