ceph/src/boost/libs/contract/test/specify/pre_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 and except, no old or post (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         .except([] { out << "f::except" << std::endl; })
  21     ;
  22     out << "f::body" << std::endl;
  23 }
  24
  25 int main() {
  26     std::ostringstream ok;
  27
  28     out.str("");
  29     f();
  30     ok.str("");
  31     ok
  32         #ifndef BOOST_CONTRACT_NO_PRECONDITIONS
  33             << "f::pre" << std::endl
  34         #endif
  35         << "f::body" << std::endl
  36     ;
  37     BOOST_TEST(out.eq(ok.str()));
  38
  39     return boost::report_errors();
  40 }
  41