crashpad/util/numeric/int128.h
Mark Mentovai 6278690abe Update copyright boilerplate, 2022 edition (Crashpad)
sed -i '' -E -e 's/Copyright (.+) The Crashpad Authors\. All rights reserved\.$/Copyright \1 The Crashpad Authors/' $(git grep -El 'Copyright (.+) The Crashpad Authors\. All rights reserved\.$')

Bug: chromium:1098010
Change-Id: I8d6138469ddbe3d281a5d83f64cf918ec2491611
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3878262
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
2022-09-06 23:54:07 +00:00

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// Copyright 2014 The Crashpad 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
//
// 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.
#ifndef CRASHPAD_UTIL_NUMERIC_INT128_H_
#define CRASHPAD_UTIL_NUMERIC_INT128_H_
#include <stdint.h>
#include "build/build_config.h"
namespace crashpad {
//! \brief Stores a 128-bit quantity.
//!
//! This structure is organized so that 128-bit quantities are laid out in
//! memory according to the systems natural byte order. If a system offers a
//! native 128-bit type, it should be possible to bit_cast<> between that type
//! and this one.
//!
//! This structure is designed to have the same layout, although not the same
//! field names, as the Windows SDKs `M128A` type from `<winnt.h>`. It is
//! provided here instead of in `compat` because it is useful outside of the
//! scope of data structures defined by the Windows SDK.
struct uint128_struct {
#if defined(ARCH_CPU_LITTLE_ENDIAN) || DOXYGEN
//! \brief The low 64 bits of the 128-bit quantity.
uint64_t lo;
//! \brief The high 64 bits of the 128-bit quantity.
uint64_t hi;
#else
uint64_t hi;
uint64_t lo;
#endif
};
static_assert(sizeof(uint128_struct) == 16, "uint128 must be 16 bytes");
} // namespace crashpad
#endif // CRASHPAD_UTIL_NUMERIC_INT128_H_