mirror of
https://github.com/boostorg/hash2.git
synced 2026-01-19 16:22:15 +00:00
63 lines
1.8 KiB
C++
63 lines
1.8 KiB
C++
// Copyright 2017, 2024 Peter Dimov
|
|
// Distributed under the Boost Software License, Version 1.0.
|
|
// https://www.boost.org/LICENSE_1_0.txt
|
|
|
|
#include <boost/hash2/hash_append.hpp>
|
|
#include <boost/hash2/fnv1a.hpp>
|
|
#include <boost/utility/string_view.hpp>
|
|
#include <boost/core/detail/string_view.hpp>
|
|
#include <boost/core/lightweight_test.hpp>
|
|
#include <boost/config.hpp>
|
|
#if !defined(BOOST_NO_CXX17_HDR_STRING_VIEW)
|
|
#include <string_view>
|
|
#endif
|
|
|
|
#if defined(BOOST_MSVC) && BOOST_MSVC < 1920
|
|
# pragma warning(disable: 4307) // integral constant overflow
|
|
#endif
|
|
|
|
template<class Hash, class Flavor, class T>
|
|
BOOST_CXX14_CONSTEXPR typename Hash::result_type test( T const& v )
|
|
{
|
|
Hash h;
|
|
Flavor f{};
|
|
|
|
hash_append( h, f, v );
|
|
|
|
return h.result();
|
|
}
|
|
|
|
#define STATIC_ASSERT(...) static_assert(__VA_ARGS__, #__VA_ARGS__)
|
|
|
|
#if defined(BOOST_NO_CXX14_CONSTEXPR) || ( defined(BOOST_GCC) && BOOST_GCC < 60000 )
|
|
|
|
# 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 char const* str = "\x01\x02\x03\x04";
|
|
|
|
TEST_EQ( (test<fnv1a_32, little_endian_flavor>( boost::string_view( str, 4 ) )), 2227238665 );
|
|
TEST_EQ( (test<fnv1a_32, big_endian_flavor>( boost::string_view( str, 4 ) )), 3245468929 );
|
|
|
|
TEST_EQ( (test<fnv1a_32, little_endian_flavor>( boost::core::string_view( str, 4 ) )), 2227238665 );
|
|
TEST_EQ( (test<fnv1a_32, big_endian_flavor>( boost::core::string_view( str, 4 ) )), 3245468929 );
|
|
|
|
#if !defined(BOOST_NO_CXX17_HDR_STRING_VIEW)
|
|
|
|
TEST_EQ( (test<fnv1a_32, little_endian_flavor>( std::string_view( str ) )), 2227238665 );
|
|
TEST_EQ( (test<fnv1a_32, big_endian_flavor>( std::string_view( str ) )), 3245468929 );
|
|
|
|
#endif
|
|
|
|
return boost::report_errors();
|
|
}
|