ceph/src/boost/libs/hana/example/repeat.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/integral_constant.hpp>
   7 #include <boost/hana/repeat.hpp>
   8
   9 #include <string>
  10 namespace hana = boost::hana;
  11
  12
  13 int main() {
  14     std::string s;
  15     for (char letter = 'a'; letter <= 'g'; ++letter)
  16         hana::repeat(hana::int_c<3>, [&] { s += letter; });
  17
  18     BOOST_HANA_RUNTIME_CHECK(s == "aaabbbcccdddeeefffggg");
  19 }