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       1                 :            : // Copyright 2020 Mapless AI, Inc.
       2                 :            : //
       3                 :            : // Permission is hereby granted, free of charge, to any person obtaining a copy
       4                 :            : // of this software and associated documentation files (the "Software"), to
       5                 :            : // deal in the Software without restriction, including without limitation the
       6                 :            : // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
       7                 :            : // sell copies of the Software, and to permit persons to whom the Software is
       8                 :            : // furnished to do so, subject to the following conditions:
       9                 :            : //
      10                 :            : // The above copyright notice and this permission notice shall be included in
      11                 :            : // all copies or substantial portions of the Software.
      12                 :            : //
      13                 :            : // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
      14                 :            : // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
      15                 :            : // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
      16                 :            : //  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
      17                 :            : //  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
      18                 :            : // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
      19                 :            : // IN THE SOFTWARE.
      20                 :            : 
      21                 :            : #ifndef HELPER_FUNCTIONS__BOOL_COMPARISONS_HPP_
      22                 :            : #define HELPER_FUNCTIONS__BOOL_COMPARISONS_HPP_
      23                 :            : 
      24                 :            : #include "common/types.hpp"
      25                 :            : 
      26                 :            : namespace autoware
      27                 :            : {
      28                 :            : namespace common
      29                 :            : {
      30                 :            : namespace helper_functions
      31                 :            : {
      32                 :            : namespace comparisons
      33                 :            : {
      34                 :            : 
      35                 :            : /**
      36                 :            :  * @brief Convenience method for performing logical exclusive or ops.
      37                 :            :  * @return True iff exactly one of 'a' and 'b' is true.
      38                 :            :  */
      39                 :            : template<typename T>
      40                 :          8 : types::bool8_t exclusive_or(const T & a, const T & b)
      41                 :            : {
      42                 :          8 :   return static_cast<types::bool8_t>(a) != static_cast<types::bool8_t>(b);
      43                 :            : }
      44                 :            : 
      45                 :            : }  // namespace comparisons
      46                 :            : }  // namespace helper_functions
      47                 :            : }  // namespace common
      48                 :            : }  // namespace autoware
      49                 :            : 
      50                 :            : #endif  // HELPER_FUNCTIONS__BOOL_COMPARISONS_HPP_