diff --git a/get_deleter_test.cpp b/get_deleter_test.cpp new file mode 100644 index 0000000..2b84a2d --- /dev/null +++ b/get_deleter_test.cpp @@ -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 +#include + +struct deleter +{ + int data; + + deleter(): data(0) + { + } + + void operator()(void *) + { + BOOST_TEST(data == 17041); + } +}; + +struct deleter2 +{ +}; + +struct X +{ +}; + +int main() +{ + { + boost::shared_ptr p(new X); + + BOOST_TEST(boost::get_deleter(p) == 0); + BOOST_TEST(boost::get_deleter(p) == 0); + BOOST_TEST(boost::get_deleter(p) == 0); + BOOST_TEST(boost::get_deleter(p) == 0); + BOOST_TEST(boost::get_deleter(p) == 0); + BOOST_TEST(boost::get_deleter(p) == 0); + BOOST_TEST(boost::get_deleter(p) == 0); + BOOST_TEST(boost::get_deleter(p) == 0); + BOOST_TEST(boost::get_deleter(p) == 0); + BOOST_TEST(boost::get_deleter(p) == 0); + } + + { + X x; + boost::shared_ptr p(&x, deleter()); + + BOOST_TEST(boost::get_deleter(p) == 0); + BOOST_TEST(boost::get_deleter(p) == 0); + BOOST_TEST(boost::get_deleter(p) == 0); + BOOST_TEST(boost::get_deleter(p) == 0); + BOOST_TEST(boost::get_deleter(p) == 0); + BOOST_TEST(boost::get_deleter(p) == 0); + BOOST_TEST(boost::get_deleter(p) == 0); + BOOST_TEST(boost::get_deleter(p) == 0); + + deleter * q = boost::get_deleter(p); + + BOOST_TEST(q != 0); + BOOST_TEST(q->data == 0); + + q->data = 17041; + + deleter const * r = boost::get_deleter(p); + + BOOST_TEST(r == q); + BOOST_TEST(r->data == 17041); + } + + return boost::report_errors(); +} diff --git a/include/boost/shared_ptr.hpp b/include/boost/shared_ptr.hpp index 5a9a44b..07ca043 100644 --- a/include/boost/shared_ptr.hpp +++ b/include/boost/shared_ptr.hpp @@ -373,11 +373,25 @@ template inline T * get_pointer(shared_ptr const & p) // get_deleter (experimental) +#if defined(__GNUC__) && (__GNUC__ < 3) + +// g++ 2.9x doesn't allow static_cast(void *) + +template D * get_deleter(shared_ptr const & p) +{ + void const * q = p._internal_get_deleter(typeid(D)); + return const_cast(static_cast(q)); +} + +#else + template D * get_deleter(shared_ptr const & p) { return static_cast(p._internal_get_deleter(typeid(D))); } +#endif + } // namespace boost #ifdef BOOST_MSVC