.. _program_listing_file__tmp_ws_src_performance_test_performance_test_include_performance_test_for_each.hpp:

Program Listing for File for_each.hpp
=====================================

|exhale_lsh| :ref:`Return to documentation for file <file__tmp_ws_src_performance_test_performance_test_include_performance_test_for_each.hpp>` (``/tmp/ws/src/performance_test/performance_test/include/performance_test/for_each.hpp``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   // Copyright 2020 Open Source Robotics Foundation, Inc.
   //
   // 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 PERFORMANCE_TEST__FOR_EACH_HPP_
   #define PERFORMANCE_TEST__FOR_EACH_HPP_
   
   #include <tuple>
   #include <utility>
   
   namespace performance_test
   {
   
   
   template<std::size_t I = 0, typename FuncT, typename ... Tp>
   typename std::enable_if<I == sizeof...(Tp), size_t>::type
   for_each(const std::tuple<Tp...> & t, FuncT f)
   {
     (void)t;
     (void)f;
     return I;
   }
   
   template<std::size_t I = 0, typename FuncT, typename ... Tp>
   typename std::enable_if<I != sizeof...(Tp), size_t>::type
   for_each(const std::tuple<Tp...> & t, FuncT f)
   {
     f(std::get<I>(t));
     return for_each<I + 1, FuncT, Tp...>(t, f);
   }
   
   }  // namespace performance_test
   
   #endif  // PERFORMANCE_TEST__FOR_EACH_HPP_