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#include <msgpack.hpp>
#define BOOST_TEST_MODULE nan
#include <boost/test/unit_test.hpp>
#include <sstream>
#include <limits>
#include <cfloat>
#include <cmath>
#include <cstdint>
inline bool is_quiet_nan(double const& nan_val) {
MSGPACK_ASSERT(nan_val != nan_val);
uint64_t bit_pattern = reinterpret_cast<uint64_t const&>(nan_val);
int is_quiet_bit_index = DBL_MANT_DIG - 2;
return (bit_pattern >> is_quiet_bit_index) & 1;
}
inline bool is_quiet_nan(float const& nan_val) {
MSGPACK_ASSERT(nan_val != nan_val);
uint32_t bit_pattern = reinterpret_cast<uint32_t const&>(nan_val);
int is_quiet_bit_index = FLT_MANT_DIG - 2;
return (bit_pattern >> is_quiet_bit_index) & 1;
}
inline void clear_quiet(double& nan_val) {
MSGPACK_ASSERT(nan_val != nan_val);
int is_quiet_bit_index = DBL_MANT_DIG - 2;
uint64_t mask = uint64_t(1) << is_quiet_bit_index;
reinterpret_cast<uint64_t&>(nan_val) &= ~mask;
}
inline void clear_quiet(float& nan_val) {
MSGPACK_ASSERT(nan_val != nan_val);
int is_quiet_bit_index = FLT_MANT_DIG - 2;
uint64_t mask = uint64_t(1) << is_quiet_bit_index;
reinterpret_cast<uint32_t&>(nan_val) &= ~mask;
}
BOOST_AUTO_TEST_CASE(unpack_float_signaling)
{
if (!std::numeric_limits<float>::has_signaling_NaN) {
return;
}
std::stringstream ss;
float val = std::numeric_limits<float>::signaling_NaN();
#if defined(_MSC_VER)
// workaround. MSVC's signaling_NaN() returns quiet_NaN().
clear_quiet(val);
#endif // defined(_MSC_VER)
msgpack::pack(ss, val);
try {
msgpack::object_handle oh =
msgpack::unpack(ss.str().c_str(), ss.str().size());
BOOST_CHECK(!is_quiet_nan(oh->via.f32));
BOOST_CHECK(!is_quiet_nan(oh->as<float>()));
BOOST_CHECK(is_quiet_nan(oh->as<double>())); // convert removes signaling
}
catch(...) {
BOOST_CHECK(false);
}
}
BOOST_AUTO_TEST_CASE(unpack_float_quiet)
{
if (!std::numeric_limits<float>::has_quiet_NaN) {
return;
}
std::stringstream ss;
float val = std::numeric_limits<float>::quiet_NaN();
msgpack::pack(ss, val);
try {
msgpack::object_handle oh =
msgpack::unpack(ss.str().c_str(), ss.str().size());
BOOST_CHECK(is_quiet_nan(oh->via.f32));
BOOST_CHECK(is_quiet_nan(oh->as<float>()));
BOOST_CHECK(is_quiet_nan(oh->as<double>()));
}
catch(...) {
BOOST_CHECK(false);
}
}
BOOST_AUTO_TEST_CASE(unpack_double_signaling)
{
if (!std::numeric_limits<double>::has_signaling_NaN) {
return;
}
std::stringstream ss;
double val = std::numeric_limits<double>::signaling_NaN();
#if defined(_MSC_VER)
// workaround. MSVC's signaling_NaN() returns quiet_NaN().
clear_quiet(val);
#endif // defined(_MSC_VER)
msgpack::pack(ss, val);
try {
msgpack::object_handle oh =
msgpack::unpack(ss.str().c_str(), ss.str().size());
BOOST_CHECK(!is_quiet_nan(oh->via.f64));
BOOST_CHECK(is_quiet_nan(oh->as<float>())); // convert removes signaling
BOOST_CHECK(!is_quiet_nan(oh->as<double>()));
}
catch(...) {
BOOST_CHECK(false);
}
}
BOOST_AUTO_TEST_CASE(unpack_double_quiet)
{
if (!std::numeric_limits<double>::has_quiet_NaN) {
return;
}
std::stringstream ss;
double val = std::numeric_limits<double>::quiet_NaN();
msgpack::pack(ss, val);
try {
msgpack::object_handle oh =
msgpack::unpack(ss.str().c_str(), ss.str().size());
BOOST_CHECK(is_quiet_nan(oh->via.f64));
BOOST_CHECK(is_quiet_nan(oh->as<float>()));
BOOST_CHECK(is_quiet_nan(oh->as<double>()));
}
catch(...) {
BOOST_CHECK(false);
}
}
BOOST_AUTO_TEST_CASE(object_float_signaling)
{
if (!std::numeric_limits<float>::has_signaling_NaN) {
return;
}
float val = std::numeric_limits<float>::signaling_NaN();
#if defined(_MSC_VER)
// workaround. MSVC's signaling_NaN() returns quiet_NaN().
clear_quiet(val);
#endif // defined(_MSC_VER)
msgpack::object obj(val);
BOOST_CHECK(!is_quiet_nan(obj.via.f32));
BOOST_CHECK(!is_quiet_nan(obj.as<float>()));
BOOST_CHECK(is_quiet_nan(obj.as<double>())); // convert removes signaling
}
BOOST_AUTO_TEST_CASE(object_float_quiet)
{
if (!std::numeric_limits<float>::has_quiet_NaN) {
return;
}
float val = std::numeric_limits<float>::quiet_NaN();
msgpack::object obj(val);
BOOST_CHECK(is_quiet_nan(obj.via.f32));
BOOST_CHECK(is_quiet_nan(obj.as<float>()));
BOOST_CHECK(is_quiet_nan(obj.as<double>()));
}
BOOST_AUTO_TEST_CASE(object_double_signaling)
{
if (!std::numeric_limits<double>::has_signaling_NaN) {
return;
}
double val = std::numeric_limits<double>::signaling_NaN();
#if defined(_MSC_VER)
// workaround. MSVC's signaling_NaN() returns quiet_NaN().
clear_quiet(val);
#endif // defined(_MSC_VER)
msgpack::object obj(val);
BOOST_CHECK(!is_quiet_nan(obj.via.f64));
BOOST_CHECK(is_quiet_nan(obj.as<float>())); // convert removes signaling
BOOST_CHECK(!is_quiet_nan(obj.as<double>()));
}
BOOST_AUTO_TEST_CASE(object_double_quiet)
{
if (!std::numeric_limits<double>::has_quiet_NaN) {
return;
}
double val = std::numeric_limits<double>::quiet_NaN();
msgpack::object obj(val);
BOOST_CHECK(is_quiet_nan(obj.via.f64));
BOOST_CHECK(is_quiet_nan(obj.as<float>()));
BOOST_CHECK(is_quiet_nan(obj.as<double>()));
}
BOOST_AUTO_TEST_CASE(object_with_zone_float_signaling)
{
if (!std::numeric_limits<float>::has_signaling_NaN) {
return;
}
float val = std::numeric_limits<float>::signaling_NaN();
#if defined(_MSC_VER)
// workaround. MSVC's signaling_NaN() returns quiet_NaN().
clear_quiet(val);
#endif // defined(_MSC_VER)
msgpack::zone z;
msgpack::object obj(val, z);
BOOST_CHECK(!is_quiet_nan(obj.via.f32));
BOOST_CHECK(!is_quiet_nan(obj.as<float>()));
BOOST_CHECK(is_quiet_nan(obj.as<double>())); // convert removes signaling
}
BOOST_AUTO_TEST_CASE(object_with_zone_float_quiet)
{
if (!std::numeric_limits<float>::has_quiet_NaN) {
return;
}
float val = std::numeric_limits<float>::quiet_NaN();
msgpack::zone z;
msgpack::object obj(val, z);
BOOST_CHECK(is_quiet_nan(obj.via.f32));
BOOST_CHECK(is_quiet_nan(obj.as<float>()));
BOOST_CHECK(is_quiet_nan(obj.as<double>()));
}
BOOST_AUTO_TEST_CASE(object_with_zone_double_signaling)
{
if (!std::numeric_limits<double>::has_signaling_NaN) {
return;
}
double val = std::numeric_limits<double>::signaling_NaN();
#if defined(_MSC_VER)
// workaround. MSVC's signaling_NaN() returns quiet_NaN().
clear_quiet(val);
#endif // defined(_MSC_VER)
msgpack::zone z;
msgpack::object obj(val, z);
BOOST_CHECK(!is_quiet_nan(obj.via.f64));
BOOST_CHECK(is_quiet_nan(obj.as<float>())); // convert removes signaling
BOOST_CHECK(!is_quiet_nan(obj.as<double>()));
}
BOOST_AUTO_TEST_CASE(object_with_zone_double_quiet)
{
if (!std::numeric_limits<double>::has_quiet_NaN) {
return;
}
double val = std::numeric_limits<double>::quiet_NaN();
msgpack::zone z;
msgpack::object obj(val, z);
BOOST_CHECK(is_quiet_nan(obj.via.f64));
BOOST_CHECK(is_quiet_nan(obj.as<float>()));
BOOST_CHECK(is_quiet_nan(obj.as<double>()));
}
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