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// Distributed under the Boost Software License, Version 1.0.

// https://www.boost.org/LICENSE_1_0.txt

// See: https://github.com/cppalliance/int128/issues/320

#include <boost/charconv.hpp>

#ifdef BOOST_CHARCONV_HAS_INT128

#if defined(__GNUC__) && __GNUC__ == 12

# pragma GCC diagnostic push

# pragma GCC diagnostic ignored "-Wstringop-overflow"

#endif

#include <boost/core/lightweight_test.hpp>

#include <string>

#include <cstdlib>

void toChars(char* ptr, char* ptrEnd, boost::int128_type i128)

{

auto r = boost::charconv::to_chars(ptr, ptrEnd, i128);

*r.ptr = '\0';

}

void toChars(char* ptr, char* ptrEnd, boost::uint128_type u128)

{

auto r = boost::charconv::to_chars(ptr, ptrEnd, u128);

*r.ptr = '\0';

}

int main()

{

boost::int128_type i128 = -123;

boost::uint128_type u128 = 123;

std::int64_t ref_value = -123;

for (int i = 1; i < 5; ++i)

{

i128 *= i;

u128 *= static_cast<unsigned>(i);

ref_value *= i;

char buf[64] = {};

toChars(buf, buf + 64, i128);

BOOST_TEST_CSTR_EQ(buf, std::to_string(ref_value).c_str());

toChars(buf, buf + 64, u128);

BOOST_TEST_CSTR_EQ(buf, std::to_string(std::abs(ref_value)).c_str());

};

return boost::report_errors();

}

#else

int main() { return 0; }

#endif

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