ceph/src/boost/libs/hana/example/string/to.cpp

   1 // Copyright Louis Dionne 2013-2017
   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/assert.hpp>
   6 #include <boost/hana/core/to.hpp>
   7 #include <boost/hana/string.hpp>
   8 namespace hana = boost::hana;
   9
  10
  11 constexpr auto str = hana::string_c<'h', 'i'>;
  12
  13 // using c_str()
  14 constexpr char const* s1 = str.c_str();
  15 static_assert(s1[0] == 'h' && s1[1] == 'i' && s1[2] == '\0', "");
  16
  17 // using hana::to
  18 constexpr char const* s2 = hana::to<char const*>(str);
  19 static_assert(s2[0] == 'h' && s2[1] == 'i' && s2[2] == '\0', "");
  20
  21 int main() { }