| 1 | // Copyright 2021, 2022 Peter Dimov. |
|---|---|
| 2 | // Distributed under the Boost Software License, Version 1.0. |
| 3 | // https://www.boost.org/LICENSE_1_0.txt |
| 4 | |
| 5 | #if defined(__GNUC__) && __GNUC__ == 8 |
| 6 | # pragma GCC diagnostic ignored "-Wsign-conversion" |
| 7 | #endif |
| 8 | |
| 9 | #include <boost/container_hash/hash.hpp> |
| 10 | #include <boost/core/lightweight_test.hpp> |
| 11 | #include <boost/core/detail/splitmix64.hpp> |
| 12 | #include <boost/config.hpp> |
| 13 | #include <boost/config/pragma_message.hpp> |
| 14 | |
| 15 | #if defined(BOOST_NO_CXX11_HDR_UNORDERED_SET) |
| 16 | |
| 17 | BOOST_PRAGMA_MESSAGE( "Test skipped, BOOST_NO_CXX11_HDR_UNORDERED_SET is defined") |
| 18 | int main() {} |
| 19 | |
| 20 | #elif defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) && defined(_CPPLIB_VER) && _CPPLIB_VER >= 520 |
| 21 | |
| 22 | BOOST_PRAGMA_MESSAGE( "Test skipped, _CPPLIB_VER >= 520 and BOOST_NO_CXX11_VARIADIC_TEMPLATES is defined") |
| 23 | int main() {} |
| 24 | |
| 25 | #else |
| 26 | |
| 27 | #include <unordered_set> |
| 28 | |
| 29 | template<class T> std::size_t hv( T const& x ) |
| 30 | { |
| 31 | return boost::hash<T>()( x ); |
| 32 | } |
| 33 | |
| 34 | template<class T> void test() |
| 35 | { |
| 36 | typedef std::unordered_set<T> set; |
| 37 | |
| 38 | int const N = 256; |
| 39 | |
| 40 | set v; |
| 41 | |
| 42 | boost::detail::splitmix64 rng; |
| 43 | |
| 44 | for( int i = 0; i < N; ++i ) |
| 45 | { |
| 46 | BOOST_TEST_EQ( hv( v ), boost::hash_unordered_range( v.begin(), v.end() ) ); |
| 47 | v.insert( static_cast<T>( rng() ) ); |
| 48 | } |
| 49 | } |
| 50 | |
| 51 | int main() |
| 52 | { |
| 53 | test<unsigned>(); |
| 54 | test<boost::uint64_t>(); |
| 55 | test<float>(); |
| 56 | test<double>(); |
| 57 | |
| 58 | return boost::report_errors(); |
| 59 | } |
| 60 | |
| 61 | #endif |
| 62 |