crashpad/util/numeric/safe_assignment.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

45 lines
1.6 KiB
C++

// 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_SAFE_ASSIGNMENT_H_
#define CRASHPAD_UTIL_NUMERIC_SAFE_ASSIGNMENT_H_
#include "base/numerics/safe_conversions.h"
namespace crashpad {
//! \brief Performs an assignment if it can be done safely, and signals if it
//! cannot be done safely.
//!
//! \param[out] destination A pointer to the variable to be assigned to.
//! \param[in] source The value to assign.
//!
//! \return `true` if \a source is in the range supported by the type of \a
//! *destination, with the assignment to \a *destination having been
//! performed. `false` if the assignment cannot be completed safely because
//! \a source is outside of this range.
template <typename Destination, typename Source>
bool AssignIfInRange(Destination* destination, Source source) {
if (!base::IsValueInRangeForNumericType<Destination>(source)) {
return false;
}
*destination = static_cast<Destination>(source);
return true;
}
} // namespace crashpad
#endif // CRASHPAD_UTIL_NUMERIC_SAFE_ASSIGNMENT_H_