arrow/math/_lib/float64.c (9 lines of code) (raw):

// 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. #include <arch.h> #include <memory.h> void FULL_NAME(sum_float64)(double buf[], size_t len, double *res) { double acc = 0.0; for(int i = 0; i < len; i++) { acc += buf[i]; } *res = acc; }