From ed5640d8b587fbcfed7dd7967f3de04b37a76f26 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 11:06:44 +0200 Subject: Adding upstream version 4:7.4.7. Signed-off-by: Daniel Baumann --- sc/source/core/tool/arraysum.hxx | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 sc/source/core/tool/arraysum.hxx (limited to 'sc/source/core/tool/arraysum.hxx') diff --git a/sc/source/core/tool/arraysum.hxx b/sc/source/core/tool/arraysum.hxx new file mode 100644 index 000000000..ce8a7f30f --- /dev/null +++ b/sc/source/core/tool/arraysum.hxx @@ -0,0 +1,36 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + */ + +#pragma once + +#include + +namespace sc::op +{ +/** + * Performs one step of the Neumanier sum between doubles + * Overwrites the summand and error + * @parma sum + * @param err + * @param value + */ +inline void sumNeumanierNormal(double& sum, double& err, const double& value) +{ + double t = sum + value; + if (fabs(sum) >= fabs(value)) + err += (sum - t) + value; + else + err += (value - t) + sum; + sum = t; +} + +} // end namespace sc::op + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ -- cgit v1.2.3