mirror of
https://github.com/boostorg/hash2.git
synced 2026-01-19 04:12:12 +00:00
56 lines
1.4 KiB
C++
56 lines
1.4 KiB
C++
// Copyright 2024 Peter Dimov
|
|
// Distributed under the Boost Software License, Version 1.0.
|
|
// https://www.boost.org/LICENSE_1_0.txt
|
|
|
|
#include <boost/hash2/fnv1a.hpp>
|
|
#include <boost/core/lightweight_test.hpp>
|
|
#include <boost/config.hpp>
|
|
#include <cstring>
|
|
|
|
#if defined(BOOST_MSVC) && BOOST_MSVC < 1920
|
|
# pragma warning(disable: 4307) // integral constant overflow
|
|
#endif
|
|
|
|
template<class H, std::size_t N> BOOST_CXX14_CONSTEXPR typename H::result_type test( std::uint64_t seed, unsigned char const (&v)[ N ] )
|
|
{
|
|
H h( seed );
|
|
|
|
h.update( v, N );
|
|
|
|
return h.result();
|
|
}
|
|
|
|
#define STATIC_ASSERT(...) static_assert(__VA_ARGS__, #__VA_ARGS__)
|
|
|
|
#if defined(BOOST_NO_CXX14_CONSTEXPR)
|
|
|
|
# define TEST_EQ(x1, x2) BOOST_TEST_EQ(x1, x2)
|
|
|
|
#else
|
|
|
|
# define TEST_EQ(x1, x2) BOOST_TEST_EQ(x1, x2); STATIC_ASSERT(x1 == x2)
|
|
|
|
#endif
|
|
|
|
int main()
|
|
{
|
|
using namespace boost::hash2;
|
|
|
|
constexpr unsigned char v1[] = { 0 };
|
|
constexpr unsigned char v4[] = { 0, 1, 2, 3 };
|
|
|
|
TEST_EQ( test<fnv1a_32>( 0, v1 ), 84696351 );
|
|
TEST_EQ( test<fnv1a_32>( 0, v4 ), 3282719153 );
|
|
|
|
TEST_EQ( test<fnv1a_64>( 0, v1 ), 12638153115695167455ull );
|
|
TEST_EQ( test<fnv1a_64>( 0, v4 ), 4932904490461320209 );
|
|
|
|
TEST_EQ( test<fnv1a_32>( 7, v1 ), 1695235878 );
|
|
TEST_EQ( test<fnv1a_32>( 7, v4 ), 4085431250 );
|
|
|
|
TEST_EQ( test<fnv1a_64>( 7, v1 ), 3154070194012243846 );
|
|
TEST_EQ( test<fnv1a_64>( 7, v4 ), 9028993744456876338 );
|
|
|
|
return boost::report_errors();
|
|
}
|