ceph/src/boost/libs/contract/test/specify/pre_old_post_except.cpp

   1
   2 // Copyright (C) 2008-2018 Lorenzo Caminiti
   3 // Distributed under the Boost Software License, Version 1.0 (see accompanying
   4 // file LICENSE_1_0.txt or a copy at http://www.boost.org/LICENSE_1_0.txt).
   5 // See: http://www.boost.org/doc/libs/release/libs/contract/doc/html/index.html
   6
   7 // Test specifying pre, old, post, and except (same if not free func).
   8
   9 #include "../detail/oteststream.hpp"
  10 #include <boost/contract/function.hpp>
  11 #include <boost/contract/check.hpp>
  12 #include <boost/detail/lightweight_test.hpp>
  13 #include <sstream>
  14
  15 boost::contract::test::detail::oteststream out;
  16
  17 void f() {
  18     boost::contract::check c = boost::contract::function()
  19         .precondition([] { out << "f::pre" << std::endl; })
  20         .old([] { out << "f::old" << std::endl; })
  21         .postcondition([] { out << "f::post" << std::endl; })
  22         .except([] { out << "f::except" << std::endl; })
  23     ;
  24     out << "f::body" << std::endl;
  25 }
  26
  27 int main() {
  28     std::ostringstream ok;
  29
  30     out.str("");
  31     f();
  32     ok.str("");
  33     ok
  34         #ifndef BOOST_CONTRACT_NO_PRECONDITIONS
  35             << "f::pre" << std::endl
  36         #endif
  37         #ifndef BOOST_CONTRACT_NO_OLDS
  38             << "f::old" << std::endl
  39         #endif
  40         << "f::body" << std::endl
  41         #ifndef BOOST_CONTRACT_NO_POSTCONDITIONS
  42             << "f::post" << std::endl
  43         #endif
  44     ;
  45     BOOST_TEST(out.eq(ok.str()));
  46
  47     return boost::report_errors();
  48 }
  49