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31da5e34c1
Summary: Based on https://github.com/facebook/rocksdb/issues/6648 (CLA Signed), but heavily modified / extended: * Implicit capture of this via [=] deprecated in C++20, and [=,this] not standard before C++20 -> now using explicit capture lists * Implicit copy operator deprecated in gcc 9 -> add explicit '= default' definition * std::random_shuffle deprecated in C++17 and removed in C++20 -> migrated to a replacement in RocksDB random.h API * Add the ability to build with different std version though -DCMAKE_CXX_STANDARD=11/14/17/20 on the cmake command line * Minimal rebuild flag of MSVC is deprecated and is forbidden with /std:c++latest (C++20) * Added MSVC 2019 C++11 & MSVC 2019 C++20 in AppVeyor * Added GCC 9 C++11 & GCC9 C++20 in Travis Pull Request resolved: https://github.com/facebook/rocksdb/pull/6697 Test Plan: make check and CI Reviewed By: cheng-chang Differential Revision: D21020318 Pulled By: pdillinger fbshipit-source-id: 12311be5dbd8675a0e2c817f7ec50fa11c18ab91
17 lines
536 B
C
17 lines
536 B
C
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under both the GPLv2 (found in the
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// COPYING file in the root directory) and Apache 2.0 License
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// (found in the LICENSE.Apache file in the root directory).
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#pragma once
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#ifndef FALLTHROUGH_INTENDED
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#if defined(__clang__)
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#define FALLTHROUGH_INTENDED [[clang::fallthrough]]
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#elif defined(__GNUC__) && __GNUC__ >= 7
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#define FALLTHROUGH_INTENDED [[gnu::fallthrough]]
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#else
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#define FALLTHROUGH_INTENDED do {} while (0)
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#endif
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#endif
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