multiprecision/test/constexpr_test_cpp_int.cpp

100 lines
3.3 KiB
C++

// (C) Copyright John Maddock 2019.
// Use, modification and distribution are subject to 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 "constexpr_arithmetric_test.hpp"
#include "boost/multiprecision/cpp_int.hpp"
#include "test.hpp"
#if !defined(BOOST_MP_NO_CONSTEXPR_DETECTION) && !defined(DISABLE_TESTS)
template <class F, class V>
decltype(std::declval<F>()(std::declval<V>())) non_constexpr_invoke(F f, V v)
{
return f(v);
}
int main()
{
typedef boost::multiprecision::int256_t int_backend;
typedef boost::multiprecision::uint256_t unsigned_backend;
{
constexpr int_backend a(22);
constexpr unsigned_backend c(22);
constexpr int_backend b = test_constexpr_add_subtract(a);
constexpr unsigned_backend d = test_constexpr_add_subtract(c);
constexpr long long llv = (long long)b;
static_assert(b == -108);
static_assert(d == 554);
BOOST_CHECK_EQUAL(b, non_constexpr_invoke(test_constexpr_add_subtract<int_backend>, a));
BOOST_CHECK_EQUAL(d, non_constexpr_invoke(test_constexpr_add_subtract<unsigned_backend>, c));
}
{
constexpr int_backend a(22);
constexpr unsigned_backend c(22);
constexpr int_backend b = test_constexpr_mul_divide(a);
constexpr unsigned_backend d = test_constexpr_mul_divide(c);
static_assert(b == 22);
static_assert(d == 22);
BOOST_CHECK_EQUAL(b, non_constexpr_invoke(test_constexpr_mul_divide<int_backend>, a));
BOOST_CHECK_EQUAL(d, non_constexpr_invoke(test_constexpr_mul_divide<unsigned_backend>, c));
}
{
constexpr int_backend a(22);
constexpr unsigned_backend c(22);
constexpr int_backend b = test_constexpr_bitwise(a);
constexpr unsigned_backend d = test_constexpr_bitwise(c);
#ifdef BOOST_HAS_INT128
static_assert(b == 230);
static_assert(d == 120);
#else
static_assert(b == 210);
static_assert(d == 106);
#endif
BOOST_CHECK_EQUAL(b, non_constexpr_invoke(test_constexpr_bitwise<int_backend>, a));
BOOST_CHECK_EQUAL(d, non_constexpr_invoke(test_constexpr_bitwise<unsigned_backend>, c));
}
{
constexpr int_backend a(22);
constexpr unsigned_backend c(22);
constexpr int_backend b = test_constexpr_logical(a);
constexpr unsigned_backend d = test_constexpr_logical(c);
#ifdef BOOST_HAS_INT128
//static_assert(b == 95);
//static_assert(d == 95);
#else
static_assert(b == 82);
static_assert(d == 82);
#endif
BOOST_CHECK_EQUAL(b, non_constexpr_invoke(test_constexpr_logical<int_backend>, a));
BOOST_CHECK_EQUAL(d, non_constexpr_invoke(test_constexpr_logical<unsigned_backend>, c));
}
{
constexpr int_backend a(22);
constexpr unsigned_backend c(22);
constexpr int_backend b = test_constexpr_compare(a);
constexpr unsigned_backend d = test_constexpr_compare(c);
#ifdef BOOST_HAS_INT128
static_assert(b == 95);
static_assert(d == 95);
#else
static_assert(b == 95);
static_assert(d == 95);
#endif
BOOST_CHECK_EQUAL(b, non_constexpr_invoke(test_constexpr_compare<int_backend>, a));
BOOST_CHECK_EQUAL(d, non_constexpr_invoke(test_constexpr_compare<unsigned_backend>, c));
}
return boost::report_errors();
}
#else
int main() {}
#endif