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// Copyright (c) 2017-present, Facebook, Inc. All rights reserved.
// This source code is licensed under both the GPLv2 (found in the
// COPYING file in the root directory) and Apache 2.0 License
// (found in the LICENSE.Apache file in the root directory).
#pragma once
#include <gflags/gflags.h>
#include <functional>
#ifndef GFLAGS_NAMESPACE
// in case it's not defined in old versions, that's probably because it was
// still google by default.
#define GFLAGS_NAMESPACE google
#endif
#ifndef DEFINE_uint32
// DEFINE_uint32 does not appear in older versions of gflags. This should be
// a sane definition for those versions.
#include <cstdint>
#define DEFINE_uint32(name, val, txt) \
namespace gflags_compat { \
DEFINE_int32(name, val, txt); \
} \
std::reference_wrapper<uint32_t> FLAGS_##name = \
std::ref(*reinterpret_cast<uint32_t *>(&gflags_compat::FLAGS_##name));
#define DECLARE_uint32(name) \
extern std::reference_wrapper<uint32_t> FLAGS_##name;
#endif // !DEFINE_uint32
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