77 lines
2.1 KiB
C++
77 lines
2.1 KiB
C++
// Copyright 2020 The Pigweed Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not
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// use this file except in compliance with the License. You may obtain a copy of
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// the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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// License for the specific language governing permissions and limitations under
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// the License.
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#pragma once
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#include <stddef.h>
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#include "pw_polyfill/standard_library/namespace.h"
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_PW_POLYFILL_BEGIN_NAMESPACE_STD
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using ::ptrdiff_t;
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using ::size_t;
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using nullptr_t = decltype(nullptr);
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using ::max_align_t;
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#define __cpp_lib_byte 201603L
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enum class byte : unsigned char {};
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template <typename I>
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constexpr I to_integer(byte b) noexcept {
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return I(b);
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}
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constexpr byte operator|(byte l, byte r) noexcept {
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return byte(static_cast<unsigned int>(l) | static_cast<unsigned int>(r));
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}
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constexpr byte operator&(byte l, byte r) noexcept {
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return byte(static_cast<unsigned int>(l) & static_cast<unsigned int>(r));
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}
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constexpr byte operator^(byte l, byte r) noexcept {
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return byte(static_cast<unsigned int>(l) ^ static_cast<unsigned int>(r));
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}
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constexpr byte operator~(byte b) noexcept {
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return byte(~static_cast<unsigned int>(b));
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}
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template <typename I>
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constexpr byte operator<<(byte b, I shift) noexcept {
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return byte(static_cast<unsigned int>(b) << shift);
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}
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template <typename I>
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constexpr byte operator>>(byte b, I shift) noexcept {
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return byte(static_cast<unsigned int>(b) >> shift);
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}
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constexpr byte& operator|=(byte& l, byte r) noexcept { return l = l | r; }
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constexpr byte& operator&=(byte& l, byte r) noexcept { return l = l & r; }
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constexpr byte& operator^=(byte& l, byte r) noexcept { return l = l ^ r; }
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template <typename I>
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inline byte& operator<<=(byte& b, I shift) noexcept {
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return b = b << shift;
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}
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template <typename I>
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inline byte& operator>>=(byte& b, I shift) noexcept {
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return b = b >> shift;
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}
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_PW_POLYFILL_END_NAMESPACE_STD
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