// Copyright 2019 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_MISC_ARRAYSIZE_H_
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#define CRASHPAD_UTIL_MISC_ARRAYSIZE_H_
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#include <sys/types.h> // For size_t.
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#include <type_traits>
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//! \file
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namespace crashpad {
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namespace internal {
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//! \brief A helper to implement ArraySize.
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template <typename ArrayType>
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constexpr size_t ArraySizeHelper() noexcept {
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return std::extent<typename std::remove_reference<ArrayType>::type>::value;
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}
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} // namespace internal
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} // namespace crashpad
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//! \brief A way of computing an array’s size.
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//!
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//! Use this only where `base::size()` or `std::size()` won’t work, such as in
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//! constant expressions (including `static_assert` expressions) that consider
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//! the sizes of non-static data members.
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#define ArraySize(array) crashpad::internal::ArraySizeHelper<decltype(array)>()
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#endif // CRASHPAD_UTIL_MISC_ARRAYSIZE_H_
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