boost::mpl::integral_c< T, v > Struct Template Reference

Description

template<typename T, T v>
struct boost::mpl::integral_c< T, v >

Adapter for IntegralConstants from the Boost.MPL.

Provided models

1. Constant and IntegralConstant
   A Boost.MPL IntegralConstant is a model of the IntegralConstant and Constant concepts just like hana::integral_constants are. As a consequence, they are also implicitly a model of the concepts provided for all models of Constant.

   // Copyright Louis Dionne 2013-2017
   // Distributed under the Boost Software License, Version 1.0.
   // (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
   
   #include <boost/hana/assert.hpp>
   #include <boost/hana/equal.hpp>
   #include <boost/hana/ext/boost/mpl/integral_c.hpp>
   #include <boost/hana/not_equal.hpp>
   
   #include <boost/mpl/int.hpp>
   #include <boost/mpl/integral_c.hpp>
   #include <boost/mpl/long.hpp>
   namespace hana = boost::hana;
   namespace mpl = boost::mpl;
   
   
   static_assert(hana::value(mpl::integral_c<int, 3>{}) == 3, "");
   static_assert(mpl::integral_c<int, 3>::value == 3, "");
   
   BOOST_HANA_CONSTANT_CHECK(hana::equal(mpl::integral_c<int, 3>{}, mpl::int_<3>{}));
   BOOST_HANA_CONSTANT_CHECK(hana::equal(mpl::integral_c<int, 3>{}, mpl::long_<3>{}));
   BOOST_HANA_CONSTANT_CHECK(hana::not_equal(mpl::integral_c<int, 3>{}, mpl::int_<0>{}));
   
   int main() { }