[/
  Copyright 2011 - 2020 John Maddock.
  Copyright 2013 - 2019 Paul A. Bristow.
  Copyright 2013 Christopher Kormanyos.

  Distributed under the Boost Software License, Version 1.0.
  (See accompanying file LICENSE_1_0.txt or copy at
  http://www.boost.org/LICENSE_1_0.txt).
]

[section:gmp_int_ref gmp_int]

   namespace boost{ namespace multiprecision{

   class gmp_int;

   typedef number<gmp_int >         mpz_int;

   }} // namespaces

Class template `gmp_int` fulfils all of the requirements for a [link boost_multiprecision.ref.backendconc Backend] type.
Its members and non-member functions are deliberately not documented: these are considered implementation details that are subject
to change.

The type of `number_category<cpp_int<Args...> >::type` is `std::integral_constant<int, number_kind_integer>`.

More information on this type can be found in the [link boost_multiprecision.tut.ints.gmp_int tutorial].

[endsect]
