ceph/src/boost/libs/hana/example/core/convert/is_embedded.cpp

   1 // Copyright Louis Dionne 2013-2016
   2 // Distributed under the Boost Software License, Version 1.0.
   3 // (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
   4
   5 #include <boost/hana/core/to.hpp>
   6 namespace hana = boost::hana;
   7
   8
   9 static_assert(hana::is_embedded<int, long>{}, "");
  10
  11 // int -> unsigned long could cause negative values to be lost
  12 static_assert(!hana::is_embedded<int, unsigned int long>{}, "");
  13
  14 // similarly, float can't represent all the values of int
  15 static_assert(!hana::is_embedded<int, float>{}, "");
  16
  17 // OK, the conversion is lossless
  18 static_assert(hana::is_embedded<float, double>{}, "");
  19
  20 int main() { }