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Split the hash pointer tests into tests for normal pointers and function pointers, as function pointers fail on old versions of Visual C++, and add a note about this to the hash documentaion.

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[SVN r28389]
This commit is contained in:
Daniel James
2005-04-21 22:18:38 +00:00
parent 8da0e01046
commit 8dc87153e9
5 changed files with 58 additions and 32 deletions
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54
hash/test/hash_function_pointer_test.cpp Normal file
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// (C) Copyright Daniel James 2005.
// Use, modification and distribution are 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 "./config.hpp"
#ifdef TEST_STD_INCLUDES
# include <functional>
#else
# include <boost/functional/hash/hash.hpp>
#endif
#define BOOST_AUTO_TEST_MAIN
#include <boost/test/auto_unit_test.hpp>
#include <boost/limits.hpp>
#include <boost/mpl/assert.hpp>
#include <boost/type_traits/is_base_and_derived.hpp>
#include "./compile_time.hpp"
void void_func1() {}
void void_func2() {}
int int_func1(int) { return 0; }
int int_func2(int) { return 0; }
BOOST_AUTO_UNIT_TEST(function_pointer_tests)
{
compile_time_tests((void(**)()) 0);
compile_time_tests((int(**)(int)) 0);
HASH_NAMESPACE::hash<void(*)()> hasher_void;
HASH_NAMESPACE::hash<int(*)(int)> hasher_int;
BOOST_CHECK(hasher_void(0) == hasher_void(0));
BOOST_CHECK(hasher_void(&void_func1) == hasher_void(&void_func1));
BOOST_CHECK(hasher_void(&void_func1) != hasher_void(&void_func2));
BOOST_CHECK(hasher_void(&void_func1) != hasher_void(0));
BOOST_CHECK(hasher_int(0) == hasher_int(0));
BOOST_CHECK(hasher_int(&int_func1) == hasher_int(&int_func1));
BOOST_CHECK(hasher_int(&int_func1) != hasher_int(&int_func2));
BOOST_CHECK(hasher_int(&int_func1) != hasher_int(0));
#if defined(TEST_EXTENSIONS)
BOOST_CHECK(hasher_void(&void_func1)
== HASH_NAMESPACE::hash_value(&void_func1));
BOOST_CHECK(hasher_int(&int_func1)
== HASH_NAMESPACE::hash_value(&int_func1));
// This isn't specified in Peter's proposal:
BOOST_CHECK(hasher_void(0) == 0);
#endif
}