1 2 // Copyright 2005-2009 Daniel James. 3 // Distributed under the Boost Software License, Version 1.0. (See accompanying 4 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) 5 6 #include "./config.hpp" 7 8 #ifdef BOOST_HASH_TEST_STD_INCLUDES 9 # include <functional> 10 #else 11 # include <boost/container_hash/hash.hpp> 12 #endif 13 14 #include <boost/core/lightweight_test.hpp> 15 #include "./compile_time.hpp" 16 void_func1()17void void_func1() { static int x = 1; ++x; } void_func2()18void void_func2() { static int x = 2; --x; } int_func1(int)19int int_func1(int) { return 0; } int_func2(int)20int int_func2(int) { return 1; } 21 function_pointer_tests()22void function_pointer_tests() 23 { 24 compile_time_tests((void(**)()) 0); 25 compile_time_tests((int(**)(int)) 0); 26 27 BOOST_HASH_TEST_NAMESPACE::hash<void(*)()> hasher_void; 28 BOOST_HASH_TEST_NAMESPACE::hash<int(*)(int)> hasher_int; 29 30 BOOST_TEST(&void_func1 != &void_func2); 31 BOOST_TEST(&int_func1 != &int_func2); 32 33 BOOST_TEST(hasher_void(0) == hasher_void(0)); 34 BOOST_TEST(hasher_void(&void_func1) == hasher_void(&void_func1)); 35 BOOST_TEST(hasher_void(&void_func1) != hasher_void(&void_func2)); 36 BOOST_TEST(hasher_void(&void_func1) != hasher_void(0)); 37 BOOST_TEST(hasher_int(0) == hasher_int(0)); 38 BOOST_TEST(hasher_int(&int_func1) == hasher_int(&int_func1)); 39 BOOST_TEST(hasher_int(&int_func1) != hasher_int(&int_func2)); 40 BOOST_TEST(hasher_int(&int_func1) != hasher_int(0)); 41 #if defined(BOOST_HASH_TEST_EXTENSIONS) 42 BOOST_TEST(hasher_void(&void_func1) 43 == BOOST_HASH_TEST_NAMESPACE::hash_value(&void_func1)); 44 BOOST_TEST(hasher_int(&int_func1) 45 == BOOST_HASH_TEST_NAMESPACE::hash_value(&int_func1)); 46 47 // This isn't specified in Peter's proposal: 48 BOOST_TEST(hasher_void(0) == 0); 49 #endif 50 } 51 main()52int main() 53 { 54 function_pointer_tests(); 55 56 return boost::report_errors(); 57 } 58