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8f758e7a25
redirect cache related allocations to the same place to attempt to put them in separate pages from other allocations to release that cache memory back to OS. Change-Id: I384658a3d652e668095b69e5a62eae5b972b5857 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/187282 Tested-by: Jenkins Reviewed-by: Caolán McNamara <caolan.mcnamara@collabora.com>
53 lines
1.2 KiB
C++
53 lines
1.2 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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#pragma once
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#include <bit>
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#include <stdexcept>
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#include <o3tl/concepts.hxx>
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namespace o3tl
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{
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struct divide_by_zero final : public std::runtime_error
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{
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explicit divide_by_zero()
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: std::runtime_error("divide by zero")
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{
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}
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};
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template <o3tl::integral T, o3tl::integral U>
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constexpr T convertToHex(U aChar)
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{
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if (aChar >= '0' && aChar <= '9')
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return T(aChar - '0');
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else if (aChar >= 'a' && aChar <= 'f')
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return T(aChar - 'a' + 10);
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else if (aChar >= 'A' && aChar <= 'F')
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return T(aChar - 'A' + 10);
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return T(-1);
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}
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template <o3tl::integral T, o3tl::integral U>
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constexpr T convertToHex(U cHigh, U cLow)
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{
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return (o3tl::convertToHex<T>(cHigh) << 4) | o3tl::convertToHex<T>(cLow);
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}
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template <o3tl::integral T>
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constexpr unsigned int number_of_bits(T x)
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{
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return sizeof(T) * 8 - std::countl_zero(x);
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}
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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