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// Copyright 2022 The Pigweed Authors
//
// 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
//
// https://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.
// Features from the <bit> header introduced in C++20.
#pragma once
#if __has_include(<bit>)
#include <bit>
#endif // __has_include(<bit>)
namespace pw {
#ifdef __cpp_lib_endian
using std::endian;
#elif defined(__GNUC__)
enum class endian {
little = __ORDER_LITTLE_ENDIAN__,
big = __ORDER_BIG_ENDIAN__,
native = __BYTE_ORDER__,
};
#else
static_assert(false,
"The pw::endian enum is not defined for this compiler. Add a "
"definition to pw_bytes/bit.h.");
#endif // __cpp_lib_endian
} // namespace pw
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