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Contents
/* -*- Mode: C++; tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*- */
/*
* Copyright 2020-2021 Couchbase, Inc.
*
* Licensed 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.
*/
#pragma once
#include <cstdint>
namespace couchbase::core::utils
{
static constexpr auto
byte_swap(std::uint16_t value) -> std::uint16_t
{
auto hi = static_cast<std::uint16_t>(value << 8U);
auto lo = static_cast<std::uint16_t>(value >> 8U);
return hi | lo;
}
static constexpr auto
byte_swap(std::uint32_t value) -> std::uint32_t
{
std::uint32_t byte0 = value & 0x000000ffU;
std::uint32_t byte1 = value & 0x0000ff00U;
std::uint32_t byte2 = value & 0x00ff0000U;
std::uint32_t byte3 = value & 0xff000000U;
return (byte0 << 24) | (byte1 << 8) | (byte2 >> 8) | (byte3 >> 24);
}
static constexpr auto
byte_swap(std::uint64_t value) -> std::uint64_t
{
std::uint64_t hi = byte_swap(static_cast<std::uint32_t>(value));
std::uint32_t lo = byte_swap(static_cast<std::uint32_t>(value >> 32));
return (hi << 32) | lo;
}
} // namespace couchbase::core::utils
Version data entries
5 entries across 5 versions & 1 rubygems