/* * Copyright (C) 2016 The Android Open Source Project * * 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 _GTS_NANOAPPS_SHARED_ARRAY_LENGTH_H_ #define _GTS_NANOAPPS_SHARED_ARRAY_LENGTH_H_ #include <stddef.h> // We chose to have this at the global name scope, as this method // isn't exclusive to nanoapp testing, and hopefully someday will // move to some place more central. /** * Determine the length of a statically-sized array at compile time using * template trickery which makes sure we only match statically-sized arrays. */ template <typename T, size_t N> constexpr size_t arrayLength(T (&)[N]) { return N; } #endif // _GTS_NANOAPPS_SHARED_ARRAY_LENGTH_H_