optional_test_ref_fail1.cpp

来自「boost库提供标准的C++ API 配合dev c++使用,功能更加强大」· C++ 代码 · 共 26 行

// Copyright (C) 2003, Fernando Luis Cacciola Carballal.
//
// Use, modification, and distribution is subject to 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)
//
// See http://www.boost.org/lib/optional for documentation.
//
// You are welcome to contact the author at:
//  [e-mail]
//
#include "boost/optional.hpp"

//
// THIS TEST SHOULD FAIL TO COMPILE
//
void optional_reference__test_no_converting_assignment()
{
  boost::optional<int&> opt ;
  short v = 1 ;
  short& r = v ;
  opt = r ;
}