yuzu/externals/vcpkg/buildtrees/boost-container/src/ost-1.79.0-5f46531285.clean/example/doc_emplace.cpp
2022-11-05 15:35:56 +01:00

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//////////////////////////////////////////////////////////////////////////////
//
// (C) Copyright Ion Gaztanaga 2009-2013. 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)
//
// See http://www.boost.org/libs/container for documentation.
//
//////////////////////////////////////////////////////////////////////////////
//[doc_emplace
#include <boost/container/list.hpp>
#include <cassert>
//Non-copyable and non-movable class
class non_copy_movable
{
non_copy_movable(const non_copy_movable &);
non_copy_movable& operator=(const non_copy_movable &);
public:
non_copy_movable(int = 0) {}
};
int main ()
{
using namespace boost::container;
//Store non-copyable and non-movable objects in a list
list<non_copy_movable> l;
non_copy_movable ncm;
//A new element will be built calling non_copy_movable(int) constructor
l.emplace(l.begin(), 0);
assert(l.size() == 1);
//A new element will be value initialized
l.emplace(l.begin());
assert(l.size() == 2);
return 0;
}
//]