.. _program_listing_file_uconfig_detail_forward_detail.h:

Program Listing for File forward_detail.h
=========================================

|exhale_lsh| :ref:`Return to documentation for file <file_uconfig_detail_forward_detail.h>` (``uconfig/detail/forward_detail.h``)

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

.. code-block:: cpp

   #pragma once
   
   #include <type_traits>
   
   #ifndef DOXYGEN_SHOULD_SKIP_THIS
   namespace uconfig {
   
   // Forward-declared operator==.
   template <typename V, typename U, std::enable_if_t<!detail::is_base_of_template<U, Variable>::value, bool> = true>
   bool operator==(const U& lhs, const Variable<V>& rhs);
   template <typename V, typename U, std::enable_if_t<!detail::is_base_of_template<U, Variable>::value, bool> = true>
   bool operator==(const Variable<V>& lhs, const U& rhs);
   
   // Forward-declared operator!=.
   template <typename V, typename U, std::enable_if_t<!detail::is_base_of_template<U, Variable>::value, bool> = true>
   bool operator!=(const U& lhs, const Variable<V>& rhs);
   template <typename V, typename U, std::enable_if_t<!detail::is_base_of_template<U, Variable>::value, bool> = true>
   bool operator!=(const Variable<V>& lhs, const U& rhs);
   
   } // namespace uconfig
   #endif /* DOXYGEN_SHOULD_SKIP_THIS */