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3rdparty/boost_1_81_0/libs/variant/test/test4.cpp 1.28 KB
73ef4ff3   Hu Chunming   提交三方库
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  //-----------------------------------------------------------------------------
  // boost-libs variant/test/test4.cpp source file
  // See http://www.boost.org for updates, documentation, and revision history.
  //-----------------------------------------------------------------------------
  //
  // Copyright (c) 2003
  // Eric Friedman, Itay Maman
  //
  // Distributed under the Boost Software License, Version 1.0. (See
  // accompanying file LICENSE_1_0.txt or copy at
  // http://www.boost.org/LICENSE_1_0.txt)
  
  #include "boost/config.hpp"
  
  #ifdef BOOST_MSVC
  #pragma warning(disable:4244) // conversion from 'const int' to 'const short'
  #endif
  
  #include "boost/core/lightweight_test.hpp"
  #include "boost/variant.hpp"
  
  #include "jobs.h"
  
  #include <string>
  
  struct class_a;
  
  using boost::variant;
  
  typedef variant<std::string, class_a, float> var_type_1;
  typedef variant<std::string, class_a, short> var_type_2;
  
  #include "class_a.h"
  
  int main()
  {
     using namespace boost;
  
     var_type_1 v1;
     var_type_2 v2;
  
     v1 = class_a();
     verify(v1, spec<class_a>(), "[V] class_a(5511)");
  
     verify(v2, spec<std::string>(), "[V] ");
  
     v2 = "abcde";
     verify(v2, spec<std::string>(), "[V] abcde");
  
     v2 = v1;
     verify(v2, spec<class_a>(), "[V] class_a(5511)");
  
     v2 = 5;
     v1 = v2;
  
     return boost::report_errors();
  }