ceph/src/boost/libs/any/test/any_test.cpp

   1 // Copyright Kevlin Henney, 2000, 2001. All rights reserved.
   2 // Copyright Antony Polukhin, 2013-2022.
   3 //
   4 // Distributed under the Boost Software License, Version 1.0. (See
   5 // accompanying file LICENSE_1_0.txt or copy at
   6 // http://www.boost.org/LICENSE_1_0.txt)
   7
   8 // what:  unit tests for variant type boost::any
   9 // who:   contributed by Kevlin Henney
  10 // when:  July 2001, 2013, 2014
  11 // where: tested with BCC 5.5, MSVC 6.0, and g++ 2.95
  12
  13 #include <boost/any.hpp>
  14
  15 #include "basic_test.hpp"
  16
  17 static const std::string& returning_string1()
  18 {
  19     static const std::string ret("foo");
  20     return ret;
  21 }
  22
  23 static std::string returning_string2()
  24 {
  25     static const std::string ret("foo");
  26     return ret;
  27 }
  28
  29 static void test_with_func()
  30 {
  31     std::string s;
  32     s = boost::any_cast<std::string>(returning_string1());
  33     s = boost::any_cast<const std::string&>(returning_string1());
  34
  35     s = boost::any_cast<std::string>(returning_string2());
  36     s = boost::any_cast<const std::string&>(returning_string2());
  37
  38 #if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
  39 #if !defined(__INTEL_COMPILER) && !defined(__ICL) && (!defined(_MSC_VER) || _MSC_VER != 1600)
  40     // Intel compiler thinks that it must choose the `any_cast(const any&)` function
  41     // instead of the `any_cast(const any&&)`.
  42     // Bug was not reported because of missing premier support account + annoying
  43     // registrations requirements.
  44
  45     // MSVC-10 had a bug:
  46     //
  47     // any.hpp(291) : error C2440: 'return' : cannot convert.
  48     // Conversion loses qualifiers
  49     // any_test.cpp(304) : see reference to function template instantiation
  50     //
  51     // This issue was fixed in MSVC-11.
  52
  53     s = boost::any_cast<std::string&&>(returning_string1());
  54 #endif
  55
  56     s = boost::any_cast<std::string&&>(returning_string2());
  57 #endif
  58 }
  59
  60 int main() {
  61     test_with_func();
  62
  63     return any_tests::basic_tests<boost::any>::run_tests();
  64 }
  65