182ca34fca
[ Merge of http://go/wvgerrit/82232 ] The new function `ArraySize` will only work for compile-time fixed-length arrays, and will provide compiler errors if the provided argument is not an array. This will replace the commonly used macro `N_ELEM()` which uses `sizeof()`. Test: Linux unittest Bug: 137041745 Change-Id: I0f5c268197a8062a99ccba43c73349e97f66eb02
21 lines
474 B
C++
21 lines
474 B
C++
// Copyright 2019 Google LLC. All Rights Reserved. This file and proprietary
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// source code may only be used and distributed under the Widevine Master
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// License Agreement.
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#ifndef WVCDM_UTIL_ARRAYSIZE_H_
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#define WVCDM_UTIL_ARRAYSIZE_H_
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#include <stdint.h>
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namespace wvcdm {
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// Returns the size of a fixed-length array.
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template <typename T, size_t N>
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constexpr size_t ArraySize(const T (&)[N]) {
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return N;
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}
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} // namespace wvcdm
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#endif // WVCDM_UTIL_ARRAYSIZE_H_
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