libs/serialization/test/test_delete_pointer.cpp
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// test_delete_pointer.cpp
// (C) Copyright 2002 Vahan Margaryan.
// 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)
//
#include <cstddef> // NULL
#include <fstream>
#include <cstdio> // remove
#include <boost/config.hpp>
#if defined(BOOST_NO_STDC_NAMESPACE)
namespace std{
using ::remove;
}
#endif
#include "test_tools.hpp"
#include <boost/core/no_exceptions_support.hpp>
#include <boost/serialization/throw_exception.hpp>
#include <boost/serialization/nvp.hpp>
#include <boost/serialization/split_member.hpp>
//A holds a pointer to another A, but doesn't own the pointer.
//objCount
class A
{
friend class boost::serialization::access;
template<class Archive>
void save(Archive &ar, const unsigned int /* file_version */) const
{
ar << BOOST_SERIALIZATION_NVP(next_);
}
template<class Archive>
void load(Archive & ar, const unsigned int /* file_version */)
{
ar >> BOOST_SERIALIZATION_NVP(next_);
++loadcount;
}
BOOST_SERIALIZATION_SPLIT_MEMBER()
public:
A()
{
if(test && objcount == 3)
boost::serialization::throw_exception(boost::archive::archive_exception(
boost::archive::archive_exception::no_exception
));
next_ = 0;
++objcount;
}
~A(){
delete next_;
--objcount;
}
A* next_;
static int objcount;
static bool test;
static int loadcount;
};
int A::objcount = 0;
int A::loadcount = 0;
bool A::test = false;
int
test_main( int /* argc */, char* /* argv */[] )
{
//fill the vector with chained A's. The vector is assumed
//to own the objects - we will destroy the objects through this vector.
A * head = new A;
A* last = head;
unsigned int i;
for(i = 1; i < 9; ++i)
{
A *a = new A;
last->next_ = a;
last = a;
}
const char * testfile = boost::archive::tmpnam(0);
BOOST_REQUIRE(NULL != testfile);
//output the list
{
test_ostream os(testfile, TEST_STREAM_FLAGS);
test_oarchive oa(os, TEST_ARCHIVE_FLAGS);
oa << BOOST_SERIALIZATION_NVP(head);
}
delete head;
BOOST_CHECK(A::objcount == 0);
head = NULL;
A::test = true;
//read the list back
{
test_istream is(testfile, TEST_STREAM_FLAGS);
test_iarchive ia(is, TEST_ARCHIVE_FLAGS);
BOOST_TRY {
ia >> BOOST_SERIALIZATION_NVP(head);
}
BOOST_CATCH (...){
ia.delete_created_pointers();
}
BOOST_CATCH_END
}
//identify the leaks
BOOST_CHECK(A::loadcount == 0);
std::remove(testfile);
return EXIT_SUCCESS;
}