ceph/src/boost/libs/hana/test/string/at.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/at.hpp>
   7 #include <boost/hana/equal.hpp>
   8 #include <boost/hana/integral_constant.hpp>
   9 #include <boost/hana/string.hpp>
  10 namespace hana = boost::hana;
  11
  12
  13 int main() {
  14     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  15         BOOST_HANA_STRING("abcd")[hana::size_c<2>],
  16         hana::char_c<'c'>
  17     ));
  18
  19     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  20         hana::at(BOOST_HANA_STRING("a"), hana::size_c<0>),
  21         hana::char_c<'a'>
  22     ));
  23     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  24         hana::at(BOOST_HANA_STRING("ab"), hana::size_c<0>),
  25         hana::char_c<'a'>
  26     ));
  27     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  28         hana::at(BOOST_HANA_STRING("abc"), hana::size_c<0>),
  29         hana::char_c<'a'>
  30     ));
  31
  32     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  33         hana::at(BOOST_HANA_STRING("ab"), hana::size_c<1>),
  34         hana::char_c<'b'>
  35     ));
  36     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  37         hana::at(BOOST_HANA_STRING("abc"), hana::size_c<1>),
  38         hana::char_c<'b'>
  39     ));
  40     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  41         hana::at(BOOST_HANA_STRING("abcd"), hana::size_c<1>),
  42         hana::char_c<'b'>
  43     ));
  44
  45     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  46         hana::at(BOOST_HANA_STRING("abc"), hana::size_c<2>),
  47         hana::char_c<'c'>
  48     ));
  49     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  50         hana::at(BOOST_HANA_STRING("abcd"), hana::size_c<2>),
  51         hana::char_c<'c'>
  52     ));
  53 }