libs/hana/test/string/unpack.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/equal.hpp>
   7 #include <boost/hana/integral_constant.hpp>
   8 #include <boost/hana/string.hpp>
   9 #include <boost/hana/unpack.hpp>
  10
  11 #include <laws/base.hpp>
  12 namespace hana = boost::hana;
  13
  14
  15 int main() {
  16     hana::test::_injection<0> f{};
  17
  18     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  19         hana::unpack(BOOST_HANA_STRING(""), f),
  20         f()
  21     ));
  22     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  23         hana::unpack(BOOST_HANA_STRING("a"), f),
  24         f(hana::char_c<'a'>)
  25     ));
  26     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  27         hana::unpack(BOOST_HANA_STRING("ab"), f),
  28         f(hana::char_c<'a'>, hana::char_c<'b'>)
  29     ));
  30     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  31         hana::unpack(BOOST_HANA_STRING("abc"), f),
  32         f(hana::char_c<'a'>, hana::char_c<'b'>, hana::char_c<'c'>)
  33     ));
  34     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  35         hana::unpack(BOOST_HANA_STRING("abcd"), f),
  36         f(hana::char_c<'a'>, hana::char_c<'b'>, hana::char_c<'c'>, hana::char_c<'d'>)
  37     ));
  38     BOOST_HANA_CONSTANT_CHECK(hana::equal(
  39         hana::unpack(BOOST_HANA_STRING("abcde"), f),
  40         f(hana::char_c<'a'>, hana::char_c<'b'>, hana::char_c<'c'>, hana::char_c<'d'>, hana::char_c<'e'>)
  41     ));
  42 }