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Add std::hash specializations for shared_ptr, local_shared_ptr, intrusive_ptr

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Peter Dimov
2020-06-02 05:59:23 +03:00
parent 09fdd5ebfd
commit 5a18ffdc56
8 changed files with 303 additions and 0 deletions
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test/lsp_hash_test.cpp
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// Copyright 2011, 2020 Peter Dimov
// Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt
#include <boost/smart_ptr/local_shared_ptr.hpp>
#include <boost/functional/hash.hpp>
#include <boost/core/lightweight_test.hpp>
int main()
{
{
boost::hash< boost::local_shared_ptr<int> > hasher;
boost::local_shared_ptr<int> p1, p2( p1 ), p3( new int ), p4( p3 ), p5( new int );
BOOST_TEST_EQ( p1, p2 );
BOOST_TEST_EQ( hasher( p1 ), hasher( p2 ) );
BOOST_TEST_NE( p1, p3 );
BOOST_TEST_NE( hasher( p1 ), hasher( p3 ) );
BOOST_TEST_EQ( p3, p4 );
BOOST_TEST_EQ( hasher( p3 ), hasher( p4 ) );
BOOST_TEST_NE( p3, p5 );
BOOST_TEST_NE( hasher( p3 ), hasher( p5 ) );
}
{
boost::hash< boost::local_shared_ptr<int[]> > hasher;
boost::local_shared_ptr<int[]> p1, p2( p1 ), p3( new int[1] ), p4( p3 ), p5( new int[1] );
BOOST_TEST_EQ( p1, p2 );
BOOST_TEST_EQ( hasher( p1 ), hasher( p2 ) );
BOOST_TEST_NE( p1, p3 );
BOOST_TEST_NE( hasher( p1 ), hasher( p3 ) );
BOOST_TEST_EQ( p3, p4 );
BOOST_TEST_EQ( hasher( p3 ), hasher( p4 ) );
BOOST_TEST_NE( p3, p5 );
BOOST_TEST_NE( hasher( p3 ), hasher( p5 ) );
}
{
boost::hash< boost::local_shared_ptr<int[1]> > hasher;
boost::local_shared_ptr<int[1]> p1, p2( p1 ), p3( new int[1] ), p4( p3 ), p5( new int[1] );
BOOST_TEST_EQ( p1, p2 );
BOOST_TEST_EQ( hasher( p1 ), hasher( p2 ) );
BOOST_TEST_NE( p1, p3 );
BOOST_TEST_NE( hasher( p1 ), hasher( p3 ) );
BOOST_TEST_EQ( p3, p4 );
BOOST_TEST_EQ( hasher( p3 ), hasher( p4 ) );
BOOST_TEST_NE( p3, p5 );
BOOST_TEST_NE( hasher( p3 ), hasher( p5 ) );
}
return boost::report_errors();
}