| // cast_tests.cpp -- The Boost Lambda Library ------------------ |
| // |
| // Copyright (C) 2000-2003 Jaakko Jarvi (jaakko.jarvi@cs.utu.fi) |
| // Copyright (C) 2000-2003 Gary Powell (powellg@amazon.com) |
| // |
| // 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) |
| // |
| // For more information, see www.boost.org |
| |
| // ----------------------------------------------------------------------- |
| |
| |
| #include <boost/core/lightweight_test.hpp> |
| |
| |
| #include "boost/lambda/lambda.hpp" |
| |
| #include "boost/lambda/casts.hpp" |
| |
| #include <string> |
| |
| using namespace boost::lambda; |
| using namespace std; |
| |
| class base { |
| int x; |
| public: |
| virtual const char* class_name() const { return "const base"; } |
| virtual const char* class_name() { return "base"; } |
| virtual ~base() {} |
| }; |
| |
| class derived : public base { |
| int y[100]; |
| public: |
| virtual const char* class_name() const { return "const derived"; } |
| virtual const char* class_name() { return "derived"; } |
| }; |
| |
| |
| |
| |
| void do_test() { |
| |
| derived *p_derived = new derived; |
| base *p_base = new base; |
| |
| base *b = NULL; |
| derived *d = NULL; |
| |
| (var(b) = ll_static_cast<base *>(p_derived))(); |
| (var(d) = ll_static_cast<derived *>(b))(); |
| |
| BOOST_TEST_CSTR_EQ(b->class_name(), "derived"); |
| BOOST_TEST_CSTR_EQ(d->class_name(), "derived"); |
| |
| (var(b) = ll_dynamic_cast<derived *>(b))(); |
| BOOST_TEST_NE(b, static_cast<base *>(NULL)); |
| BOOST_TEST_CSTR_EQ(b->class_name(), "derived"); |
| |
| (var(d) = ll_dynamic_cast<derived *>(p_base))(); |
| BOOST_TEST_EQ(d, static_cast<derived *>(NULL)); |
| |
| |
| |
| const derived* p_const_derived = p_derived; |
| |
| BOOST_TEST_CSTR_EQ(p_const_derived->class_name(), "const derived"); |
| (var(d) = ll_const_cast<derived *>(p_const_derived))(); |
| BOOST_TEST_CSTR_EQ(d->class_name(), "derived"); |
| |
| int i = 10; |
| char* cp = reinterpret_cast<char*>(&i); |
| |
| int* ip; |
| (var(ip) = ll_reinterpret_cast<int *>(cp))(); |
| BOOST_TEST_EQ(*ip, 10); |
| |
| |
| // typeid |
| |
| BOOST_TEST_CSTR_EQ(ll_typeid(d)().name(), typeid(d).name()); |
| |
| |
| // sizeof |
| |
| BOOST_TEST_EQ(ll_sizeof(_1)(p_derived), sizeof(p_derived)); |
| BOOST_TEST_EQ(ll_sizeof(_1)(*p_derived), sizeof(*p_derived)); |
| BOOST_TEST_EQ(ll_sizeof(_1)(p_base), sizeof(p_base)); |
| BOOST_TEST_EQ(ll_sizeof(_1)(*p_base), sizeof(*p_base)); |
| |
| int an_array[100]; |
| BOOST_TEST_EQ(ll_sizeof(_1)(an_array), 100 * sizeof(int)); |
| |
| delete p_derived; |
| delete p_base; |
| |
| |
| } |
| |
| int main() |
| { |
| do_test(); |
| return boost::report_errors(); |
| } |