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Update hash_reference_values for long double

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This commit is contained in:
Peter Dimov
2022-09-19 15:32:51 +03:00
parent fc249670c0
commit 3ae0aea360
1 changed files with 47 additions and 37 deletions
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48
test/hash_reference_values.cpp
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@@ -21,6 +21,10 @@ int main() {}
# pragma GCC diagnostic ignored "-Wsign-conversion"
#endif
#if defined(_MSC_VER)
# pragma warning(disable: 4127) // conditional expression is constant
#endif
#include <boost/container_hash/hash.hpp>
#include <boost/core/lightweight_test.hpp>
#include <string>
@@ -197,49 +201,55 @@ int main()
BOOST_TEST_EQ( hv(0.0L), 0 );
BOOST_TEST_EQ( hv(-0.0L), 0 );
#if defined(_WIN32) && !defined(__GNUC__) // Under MS ABI, long double == double
int const ldbits = sizeof( long double ) * CHAR_BIT;
#if SIZE_MAX == 4294967295U
if( ldbits == 64 )
{
BOOST_TEST_EQ( hv(1.0L), 1072693248U );
BOOST_TEST_EQ( hv(-1.0L), 3220176896U );
BOOST_TEST_EQ( hv(3.14L), 3972386992U );
BOOST_TEST_EQ( hv(-3.14L), 1824903344U );
BOOST_TEST_EQ( hv(std::numeric_limits<long double>::infinity()), 2146435072U );
BOOST_TEST_EQ( hv(-std::numeric_limits<long double>::infinity()), 4293918720U );
#else
BOOST_TEST_EQ( hv(1.0L), 4607182418800017408ULL );
BOOST_TEST_EQ( hv(-1.0L), 13830554455654793216ULL );
BOOST_TEST_EQ( hv(3.14L), 4614253070214989087ULL );
BOOST_TEST_EQ( hv(-3.14L), 13837625107069764895ULL );
BOOST_TEST_EQ( hv(std::numeric_limits<long double>::infinity()), 9218868437227405312ULL );
BOOST_TEST_EQ( hv(-std::numeric_limits<long double>::infinity()), 18442240474082181120ULL );
#endif
#else
#if SIZE_MAX == 4294967295U
}
else
{
BOOST_TEST_EQ( hv(1.0L), 3770520689U );
BOOST_TEST_EQ( hv(-1.0L), 3770553457U );
BOOST_TEST_EQ( hv(3.14L), 1150018772U );
BOOST_TEST_EQ( hv(-3.14L), 1150051540U );
BOOST_TEST_EQ( hv(std::numeric_limits<long double>::infinity()), 3770537073U );
BOOST_TEST_EQ( hv(-std::numeric_limits<long double>::infinity()), 3770569841U );
}
#else
if( ldbits == 64 )
{
BOOST_TEST_EQ( hv(1.0L), 4607182418800017408ULL );
BOOST_TEST_EQ( hv(-1.0L), 13830554455654793216ULL );
BOOST_TEST_EQ( hv(3.14L), 4614253070214989087ULL );
BOOST_TEST_EQ( hv(-3.14L), 13837625107069764895ULL );
BOOST_TEST_EQ( hv(std::numeric_limits<long double>::infinity()), 9218868437227405312ULL );
BOOST_TEST_EQ( hv(-std::numeric_limits<long double>::infinity()), 18442240474082181120ULL );
}
else if( ldbits == 128 && std::numeric_limits<long double>::digits == 64 )
{
BOOST_TEST_EQ( hv(1.0L), 18308860000934227808ULL );
BOOST_TEST_EQ( hv(-1.0L), 18308860000934260576ULL );
BOOST_TEST_EQ( hv(3.14L), 13482288377848558187ULL );
BOOST_TEST_EQ( hv(-3.14L), 13482288377848590955ULL );
BOOST_TEST_EQ( hv(std::numeric_limits<long double>::infinity()), 18308860000934244192ULL );
BOOST_TEST_EQ( hv(-std::numeric_limits<long double>::infinity()), 18308860000934276960ULL );
#endif
}
else
{
// ldbits == 128 && std::numeric_limits<long double>::digits == 113
// under ARM64 and S390x, but the values differ presumably because of
// __FLOAT_WORD_ORDER__
}
#endif