source/macro.h

   1 // Copyright (c) 2015-2016 The Khronos Group Inc.
   2 //
   3 // Licensed under the Apache License, Version 2.0 (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
   6 //
   7 //     http://www.apache.org/licenses/LICENSE-2.0
   8 //
   9 // Unless required by applicable law or agreed to in writing, software
  10 // distributed under the License is distributed on an "AS IS" BASIS,
  11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 // See the License for the specific language governing permissions and
  13 // limitations under the License.
  14
  15 #ifndef SOURCE_MACRO_H_
  16 #define SOURCE_MACRO_H_
  17
  18 // Evaluates to the number of elements of array A.
  19 //
  20 // If we could use constexpr, then we could make this a template function.
  21 // If the source arrays were std::array, then we could have used
  22 // std::array::size.
  23 #define ARRAY_SIZE(A) (static_cast<uint32_t>(sizeof(A) / sizeof(A[0])))
  24
  25 #endif  // SOURCE_MACRO_H_