1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef _GTS_NANOAPPS_SHARED_ARRAY_LENGTH_H_ 18 #define _GTS_NANOAPPS_SHARED_ARRAY_LENGTH_H_ 19 20 #include <stddef.h> 21 22 // We chose to have this at the global name scope, as this method 23 // isn't exclusive to nanoapp testing, and hopefully someday will 24 // move to some place more central. 25 26 /** 27 * Determine the length of a statically-sized array at compile time using 28 * template trickery which makes sure we only match statically-sized arrays. 29 */ 30 template <typename T, size_t N> 31 constexpr size_t arrayLength(T (&)[N]) { return N; } 32 33 34 #endif // _GTS_NANOAPPS_SHARED_ARRAY_LENGTH_H_ 35
