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get_deleter_test added; associated fixes.

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[SVN r16373]
This commit is contained in:
Peter Dimov
2002-11-22 16:29:51 +00:00
parent ea285b4231
commit fadc0716ce
2 changed files with 95 additions and 0 deletions
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81
get_deleter_test.cpp Normal file
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@ -0,0 +1,81 @@
//
// get_deleter_test.cpp
//
// Copyright (c) 2002 Peter Dimov
//
// Permission to copy, use, modify, sell and distribute this software
// is granted provided this copyright notice appears in all copies.
// This software is provided "as is" without express or implied
// warranty, and with no claim as to its suitability for any purpose.
//
#include <boost/shared_ptr.hpp>
#include <boost/detail/lightweight_test.hpp>
struct deleter
{
int data;
deleter(): data(0)
{
}
void operator()(void *)
{
BOOST_TEST(data == 17041);
}
};
struct deleter2
{
};
struct X
{
};
int main()
{
{
boost::shared_ptr<X> p(new X);
BOOST_TEST(boost::get_deleter<void>(p) == 0);
BOOST_TEST(boost::get_deleter<void const>(p) == 0);
BOOST_TEST(boost::get_deleter<int>(p) == 0);
BOOST_TEST(boost::get_deleter<int const>(p) == 0);
BOOST_TEST(boost::get_deleter<X>(p) == 0);
BOOST_TEST(boost::get_deleter<X const>(p) == 0);
BOOST_TEST(boost::get_deleter<deleter>(p) == 0);
BOOST_TEST(boost::get_deleter<deleter const>(p) == 0);
BOOST_TEST(boost::get_deleter<deleter2>(p) == 0);
BOOST_TEST(boost::get_deleter<deleter2 const>(p) == 0);
}
{
X x;
boost::shared_ptr<X> p(&x, deleter());
BOOST_TEST(boost::get_deleter<void>(p) == 0);
BOOST_TEST(boost::get_deleter<void const>(p) == 0);
BOOST_TEST(boost::get_deleter<int>(p) == 0);
BOOST_TEST(boost::get_deleter<int const>(p) == 0);
BOOST_TEST(boost::get_deleter<X>(p) == 0);
BOOST_TEST(boost::get_deleter<X const>(p) == 0);
BOOST_TEST(boost::get_deleter<deleter2>(p) == 0);
BOOST_TEST(boost::get_deleter<deleter2 const>(p) == 0);
deleter * q = boost::get_deleter<deleter>(p);
BOOST_TEST(q != 0);
BOOST_TEST(q->data == 0);
q->data = 17041;
deleter const * r = boost::get_deleter<deleter const>(p);
BOOST_TEST(r == q);
BOOST_TEST(r->data == 17041);
}
return boost::report_errors();
}

14
include/boost/shared_ptr.hpp
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@ -373,11 +373,25 @@ template<class T> inline T * get_pointer(shared_ptr<T> const & p)
// get_deleter (experimental)
#if defined(__GNUC__) && (__GNUC__ < 3)
// g++ 2.9x doesn't allow static_cast<X const *>(void *)
template<class D, class T> D * get_deleter(shared_ptr<T> const & p)
{
void const * q = p._internal_get_deleter(typeid(D));
return const_cast<D *>(static_cast<D const *>(q));
}
#else
template<class D, class T> D * get_deleter(shared_ptr<T> const & p)
{
return static_cast<D *>(p._internal_get_deleter(typeid(D)));
}
#endif
} // namespace boost
#ifdef BOOST_MSVC