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Side by Side Diff: util/numeric/in_range_cast.h

Issue 800073003: win: Avoid warnings about conversion to smaller integer types (Closed) Base URL: https://chromium.googlesource.com/crashpad/crashpad@strlcpy-impl
Patch Set: Created 6 years ago
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1 // Copyright 2014 The Crashpad Authors. All rights reserved. 1 // Copyright 2014 The Crashpad Authors. All rights reserved.
2 // 2 //
3 // Licensed under the Apache License, Version 2.0 (the "License"); 3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License. 4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at 5 // You may obtain a copy of the License at
6 // 6 //
7 // http://www.apache.org/licenses/LICENSE-2.0 7 // http://www.apache.org/licenses/LICENSE-2.0
8 // 8 //
9 // Unless required by applicable law or agreed to in writing, software 9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS, 10 // distributed under the License is distributed on an "AS IS" BASIS,
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25 //! 25 //!
26 //! \param[in] source The value to convert and return. 26 //! \param[in] source The value to convert and return.
27 //! \param[in] default_value The default value to return, in the event that \a 27 //! \param[in] default_value The default value to return, in the event that \a
28 //! source cannot be represented in the destination type. 28 //! source cannot be represented in the destination type.
29 //! 29 //!
30 //! \return \a source if it can be represented in the destination type, 30 //! \return \a source if it can be represented in the destination type,
31 //! otherwise \a default_value. 31 //! otherwise \a default_value.
32 template <typename Destination, typename Source> 32 template <typename Destination, typename Source>
33 Destination InRangeCast(Source source, Destination default_value) { 33 Destination InRangeCast(Source source, Destination default_value) {
34 if (base::IsValueInRangeForNumericType<Destination>(source)) { 34 if (base::IsValueInRangeForNumericType<Destination>(source)) {
35 return source; 35 return static_cast<Destination>(source);
36 } 36 }
37 37
38 LOG(WARNING) << "value " << source << " out of range"; 38 LOG(WARNING) << "value " << source << " out of range";
39 return default_value; 39 return static_cast<Destination>(default_value);
40 } 40 }
41 41
42 } // namespace crashpad 42 } // namespace crashpad
43 43
44 #endif // CRASHPAD_UTIL_NUMERIC_IN_RANGE_CAST_H_ 44 #endif // CRASHPAD_UTIL_NUMERIC_IN_RANGE_CAST_H_
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