.. _common_reference:

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meta::common_reference
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Defined in header ``<mgs/meta/common_reference.hpp>``.

.. code-block:: cpp

   template <typename... T>
   struct common_reference;

   template <typename... T>
   using common_reference_t = typename common_reference<T...>::type;

Pre-C++20 implementation of :cpp:`std::common_reference <types/common_reference>`.

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Differences with the C++20 version
==================================

* There is no ``basic_common_reference`` customization point.