// Copyright 2014 The Crashpad Authors. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://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,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef CRASHPAD_UTIL_NUMERIC_IN_RANGE_CAST_H_
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#define CRASHPAD_UTIL_NUMERIC_IN_RANGE_CAST_H_
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#include "base/logging.h"
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#include "base/numerics/safe_conversions.h"
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namespace crashpad {
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//! \brief Casts to a different type if it can be done without data loss,
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//! logging a warning message and returing a default value otherwise.
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//!
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//! \param[in] source The value to convert and return.
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//! \param[in] default_value The default value to return, in the event that \a
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//! source cannot be represented in the destination type.
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//!
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//! \return \a source if it can be represented in the destination type,
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//! otherwise \a default_value.
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template <typename Destination, typename Source>
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Destination InRangeCast(Source source, Destination default_value) {
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if (base::IsValueInRangeForNumericType<Destination>(source)) {
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return static_cast<Destination>(source);
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}
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LOG(WARNING) << "value " << source << " out of range";
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return static_cast<Destination>(default_value);
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}
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} // namespace crashpad
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#endif // CRASHPAD_UTIL_NUMERIC_IN_RANGE_CAST_H_
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