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///////////////////////////////////////////////////////////////////////////////
// Copyright Christopher Kormanyos 2021 - 2024.
// Distributed under the Boost Software License,
// Version 1.0. (See accompanying file LICENSE_1_0.txt
// or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#include <random>
#include <boost/version.hpp>
#include <util/utility/util_pseudorandom_time_point_seed.h>
#if !defined(BOOST_VERSION)
#error BOOST_VERSION is not defined. Ensure that <boost/version.hpp> is properly included.
#endif
#if ((BOOST_VERSION >= 107900) && !defined(BOOST_MP_STANDALONE))
#define BOOST_MP_STANDALONE
#endif
#if ((BOOST_VERSION >= 108000) && !defined(BOOST_NO_EXCEPTIONS))
#define BOOST_NO_EXCEPTIONS
#endif
#if (((BOOST_VERSION == 108000) || (BOOST_VERSION == 108100)) && defined(BOOST_NO_EXCEPTIONS))
#if defined(__clang__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wsometimes-uninitialized"
#endif
#if defined(_MSC_VER)
#pragma warning(push)
#pragma warning(disable : 4701)
#endif
#endif
#if (BOOST_VERSION < 108000)
#if defined(__GNUC__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wconversion"
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wsign-conversion"
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-parameter"
#endif
#endif
#if (defined(__GNUC__) && !defined(__clang__) && (__GNUC__ >= 12))
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wrestrict"
#endif
#if (BOOST_VERSION < 108000)
#if ((defined(__clang__) && (__clang_major__ > 9)) && !defined(__APPLE__))
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wdeprecated-copy"
#endif
#endif
#include <boost/multiprecision/cpp_int.hpp>
#include <math/wide_integer/uintwide_t.h>
#include <test/test_uintwide_t.h>
#if defined(__clang__)
#if defined __has_feature && __has_feature(thread_sanitizer)
#define UINTWIDE_T_REDUCE_TEST_DEPTH
#endif
#elif defined(__GNUC__)
#if defined(__SANITIZE_THREAD__) || defined(WIDE_INTEGER_HAS_COVERAGE)
#define UINTWIDE_T_REDUCE_TEST_DEPTH
#endif
#elif defined(_MSC_VER)
#if defined(_DEBUG)
#define UINTWIDE_T_REDUCE_TEST_DEPTH
#endif
#endif
namespace local_float_convert
{
auto engine_man() -> std::mt19937& { static std::mt19937 my_engine_man; return my_engine_man; } // NOLINT(cert-msc32-c,cert-msc51-cpp)
auto engine_sgn() -> std::ranlux24_base& { static std::ranlux24_base my_engine_sgn; return my_engine_sgn; } // NOLINT(cert-msc32-c,cert-msc51-cpp)
auto engine_e10() -> std::linear_congruential_engine<std::uint32_t, 48271, 0, 2147483647>& { static std::linear_congruential_engine<std::uint32_t, 48271, 0, 2147483647> my_engine_e10; return my_engine_e10; } // NOLINT(cert-msc32-c,cert-msc51-cpp,cppcoreguidelines-avoid-magic-numbers,readability-magic-numbers)
template<typename UnsignedIntegralType>
auto unsigned_dist_maker(const UnsignedIntegralType lo,
const UnsignedIntegralType hi) -> std::uniform_int_distribution<UnsignedIntegralType>
{
return std::uniform_int_distribution<UnsignedIntegralType>(lo, hi);
}
template<typename FloatingPointType,
const std::int32_t LoExp10,
const std::int32_t HiExp10>
auto get_random_float() -> FloatingPointType
{
using local_builtin_float_type = FloatingPointType;
static std::uniform_real_distribution<local_builtin_float_type>
dist_man
(
static_cast<local_builtin_float_type>(0.0F),
static_cast<local_builtin_float_type>(1.0F)
);
static auto dist_sgn = unsigned_dist_maker(static_cast<unsigned>(UINT8_C(0)),
static_cast<unsigned>(UINT8_C(1)));
static auto dist_e10 = unsigned_dist_maker(LoExp10, HiExp10);
using std::pow;
const auto p10 = dist_e10(engine_e10());
const local_builtin_float_type e10 = pow(static_cast<local_builtin_float_type>(10.0F),
static_cast<local_builtin_float_type>(p10));
const local_builtin_float_type a = dist_man(engine_man()) * e10;
const bool is_neg = (dist_sgn(engine_sgn()) != 0);
const local_builtin_float_type f = ((!is_neg) ? a : -a);
return f;
}
template<const std::size_t MaxDigitsToGet,
const std::size_t MinDigitsToGet = 2U>
auto get_random_digit_string(std::string& str) -> void // NOLINT(google-runtime-references)
{
static_assert(MinDigitsToGet >= 2U, "Error: The minimum number of digits to get must be 2 or more");
static auto dist_sgn = unsigned_dist_maker(static_cast<unsigned>(UINT8_C(0)),
static_cast<unsigned>(UINT8_C(1)));
static auto dist_len = unsigned_dist_maker(MinDigitsToGet, MaxDigitsToGet);
static auto dist_first = unsigned_dist_maker(static_cast<unsigned>(UINT8_C(1)),
static_cast<unsigned>(UINT8_C(9)));
static auto dist_following = unsigned_dist_maker(static_cast<unsigned>(UINT8_C(0)),
static_cast<unsigned>(UINT8_C(9)));
const bool is_neg = (dist_sgn(engine_sgn()) != 0);
const auto len = dist_len(engine_e10());
auto pos = static_cast<std::string::size_type>(0U);
if(is_neg)
{
str.resize(len + 1U);
str.at(pos) = '-';
++pos;
}
else
{
str.resize(len);
}
str.at(pos) =
static_cast<char>
(
dist_first(engine_man())
+ static_cast<std::uniform_int_distribution<unsigned>::result_type>(UINT32_C(0x30))
);
++pos;
while(pos < str.length())
{
str.at(pos) =
static_cast<char>
(
dist_following(engine_man())
+ static_cast<std::uniform_int_distribution<unsigned>::result_type>(UINT32_C(0x30))
);
++pos;
}
}
template<typename UnsignedIntegralType>
auto hexlexical_cast(const UnsignedIntegralType& u) -> std::string
{
std::stringstream ss;
ss << std::hex << u;
return ss.str();
}
} // namespace local_float_convert
#if defined(WIDE_INTEGER_NAMESPACE)
auto WIDE_INTEGER_NAMESPACE::math::wide_integer::test_uintwide_t_float_convert() -> bool
#else
auto ::math::wide_integer::test_uintwide_t_float_convert() -> bool
#endif
{
constexpr auto digits2 = static_cast<unsigned>(256U);
using boost_uint_backend_type =
boost::multiprecision::cpp_int_backend<digits2,
digits2,
boost::multiprecision::unsigned_magnitude>;
using boost_sint_backend_type =
boost::multiprecision::cpp_int_backend<digits2,
digits2,
boost::multiprecision::signed_magnitude>;
using boost_uint_type = boost::multiprecision::number<boost_uint_backend_type, boost::multiprecision::et_on>;
using boost_sint_type = boost::multiprecision::number<boost_sint_backend_type, boost::multiprecision::et_on>;
#if defined(WIDE_INTEGER_HAS_LIMB_TYPE_UINT64)
using local_limb_type = std::uint64_t;
#else
using local_limb_type = std::uint32_t;
#endif
#if defined(WIDE_INTEGER_NAMESPACE)
using local_uint_type = WIDE_INTEGER_NAMESPACE::math::wide_integer::uintwide_t<digits2, local_limb_type, void>;
using local_sint_type = WIDE_INTEGER_NAMESPACE::math::wide_integer::uintwide_t<digits2, local_limb_type, void, true>;
#else
using local_uint_type = ::math::wide_integer::uintwide_t<digits2, local_limb_type, void>;
using local_sint_type = ::math::wide_integer::uintwide_t<digits2, local_limb_type, void, true>;
#endif
local_float_convert::engine_man().seed(::util::util_pseudorandom_time_point_seed::value<typename std::mt19937::result_type >());
local_float_convert::engine_sgn().seed(::util::util_pseudorandom_time_point_seed::value<typename std::ranlux24_base::result_type >());
local_float_convert::engine_e10().seed(::util::util_pseudorandom_time_point_seed::value<typename std::linear_congruential_engine<std::uint32_t, 48271, 0, 2147483647>::result_type>()); // NOLINT(cppcoreguidelines-avoid-magic-numbers,readability-magic-numbers)
bool result_is_ok = true;
#if !defined(UINTWIDE_T_REDUCE_TEST_DEPTH)
for(auto i = static_cast<std::size_t>(0U); i < static_cast<std::size_t>(UINT32_C(0x80000)); ++i)
#else
for(auto i = static_cast<std::size_t>(0U); i < static_cast<std::size_t>(UINT32_C(0x10000)); ++i)
#endif
{
const auto f = local_float_convert::get_random_float<float, -1, 27>();
auto n_boost = static_cast<boost_sint_type>(f);
auto n_local = static_cast<local_sint_type>(f);
const std::string str_boost_signed = local_float_convert::hexlexical_cast(static_cast<boost_uint_type>(n_boost));
const std::string str_local_signed = local_float_convert::hexlexical_cast(static_cast<local_uint_type>(n_local));
result_is_ok = ((str_boost_signed == str_local_signed) && result_is_ok);
}
#if !defined(UINTWIDE_T_REDUCE_TEST_DEPTH)
for(auto i = static_cast<std::size_t>(0U); i < static_cast<std::size_t>(UINT32_C(0x80000)); ++i)
#else
for(auto i = static_cast<std::size_t>(0U); i < static_cast<std::size_t>(UINT32_C(0x10000)); ++i)
#endif
{
const auto d = local_float_convert::get_random_float<double, -1, 75>();
auto n_boost = static_cast<boost_sint_type>(d);
auto n_local = static_cast<local_sint_type>(d);
const std::string str_boost_signed = local_float_convert::hexlexical_cast(static_cast<boost_uint_type>(n_boost));
const std::string str_local_signed = local_float_convert::hexlexical_cast(static_cast<local_uint_type>(n_local));
result_is_ok = ((str_boost_signed == str_local_signed) && result_is_ok);
}
local_float_convert::engine_man().seed(::util::util_pseudorandom_time_point_seed::value<typename std::mt19937::result_type >());
local_float_convert::engine_sgn().seed(::util::util_pseudorandom_time_point_seed::value<typename std::ranlux24_base::result_type >());
local_float_convert::engine_e10().seed(::util::util_pseudorandom_time_point_seed::value<typename std::linear_congruential_engine<std::uint32_t, 48271, 0, 2147483647>::result_type>()); // NOLINT(cppcoreguidelines-avoid-magic-numbers,readability-magic-numbers)
#if !defined(UINTWIDE_T_REDUCE_TEST_DEPTH)
for(auto i = static_cast<std::size_t>(0U); i < static_cast<std::size_t>(UINT32_C(0x100000)); ++i)
#else
for(auto i = static_cast<std::size_t>(0U); i < static_cast<std::size_t>(UINT32_C(0x20000)); ++i)
#endif
{
std::string str_digits;
local_float_convert::get_random_digit_string<31U>(str_digits); // NOLINT(cppcoreguidelines-avoid-magic-numbers,readability-magic-numbers)
const auto n_boost = boost_sint_type(str_digits.c_str());
const auto n_local = local_sint_type(str_digits.c_str());
const auto f_boost = static_cast<float>(n_boost);
const auto f_local = static_cast<float>(n_local);
using std::fabs;
constexpr auto cast_tol_float = static_cast<float>(std::numeric_limits<float>::epsilon() * 2.0F);
const float closeness = fabs(1.0F - fabs(f_boost / f_local));
const bool result_f_is_ok = (closeness < cast_tol_float);
result_is_ok = (result_f_is_ok && result_is_ok);
}
#if !defined(UINTWIDE_T_REDUCE_TEST_DEPTH)
for(auto i = static_cast<std::size_t>(0U); i < static_cast<std::size_t>(UINT32_C(0x40000)); ++i)
#else
for(auto i = static_cast<std::size_t>(0U); i < static_cast<std::size_t>(UINT32_C(0x08000)); ++i)
#endif
{
std::string str_digits;
local_float_convert::get_random_digit_string<71U>(str_digits); // NOLINT(cppcoreguidelines-avoid-magic-numbers,readability-magic-numbers)
const auto n_boost = boost_sint_type(str_digits.c_str());
const auto n_local = local_sint_type(str_digits.c_str());
const auto d_boost = static_cast<double>(n_boost);
const auto d_local = static_cast<double>(n_local);
using std::fabs;
constexpr auto cast_tol_double = static_cast<double>(std::numeric_limits<double>::epsilon() * 2.0);
const double closeness = fabs(1.0 - fabs(d_boost / d_local));
const bool result_f_is_ok = (closeness < cast_tol_double);
result_is_ok = (result_f_is_ok && result_is_ok);
}
return result_is_ok;
}
#if (BOOST_VERSION < 108000)
#if ((defined(__clang__) && (__clang_major__ > 9)) && !defined(__APPLE__))
#pragma GCC diagnostic pop
#endif
#endif
#if (defined(__GNUC__) && !defined(__clang__) && (__GNUC__ >= 12))
#pragma GCC diagnostic pop
#endif
#if (BOOST_VERSION < 108000)
#if defined(__GNUC__)
#pragma GCC diagnostic pop
#pragma GCC diagnostic pop
#pragma GCC diagnostic pop
#endif
#endif
#if (((BOOST_VERSION == 108000) || (BOOST_VERSION == 108100)) && defined(BOOST_NO_EXCEPTIONS))
#if defined(__clang__)
#pragma GCC diagnostic pop
#endif
#if defined(_MSC_VER)
#pragma warning(pop)
#endif
#endif
|
