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Switch over to using new Boost.Math version of gcd/lcm.

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Please refer to the Boost.Math revision log for details of changes, but in summary:
* New version of gcd/lcm internals by Jeremy Murphy include mixed-binary algorithm and better selection logic.
* Support is now included for gcd's of polynomials.
* Full C++14 constexpr support.
This commit is contained in:
jzmaddock
2017-04-23 13:01:09 +01:00
parent 162e48d14a
commit beb6871864
5 changed files with 773 additions and 482 deletions
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65
test/gcd_constexpr14_test.cpp
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@ -8,7 +8,7 @@
#ifndef BOOST_NO_CXX14_CONSTEXPR
void test_constexpr()
void test_constexpr1()
{
constexpr const boost::int64_t i = 347 * 463 * 727;
constexpr const boost::int64_t j = 191 * 347 * 281;
@ -16,30 +16,51 @@ void test_constexpr()
constexpr const boost::int64_t k = boost::integer::gcd(i, j);
constexpr const boost::int64_t l = boost::integer::lcm(i, j);
static_assert(k == 347, "Expected result not found in constexpr gcd.");
static_assert(l == 6268802158037, "Expected result not found in constexpr lcm.");
static_assert(k == 347, "Expected result not integer in constexpr gcd.");
static_assert(l == 6268802158037, "Expected result not integer in constexpr lcm.");
}
#endif
#ifndef BOOST_NO_CXX11_NOEXCEPT
void test_noexcept()
void test_constexpr2()
{
static_assert(noexcept(boost::integer::gcd(static_cast<unsigned char>(2), static_cast<unsigned char>(4))), "Expected a noexcept function.");
#ifndef _MSC_VER
// This generates an internal compiler error if enabled as well as the following test:
static_assert(noexcept(boost::integer::gcd(static_cast<char>(2), static_cast<char>(4))), "Expected a noexcept function.");
#endif
static_assert(noexcept(boost::integer::gcd(static_cast<signed char>(2), static_cast<signed char>(4))), "Expected a noexcept function.");
static_assert(noexcept(boost::integer::gcd(static_cast<short>(2), static_cast<short>(4))), "Expected a noexcept function.");
static_assert(noexcept(boost::integer::gcd(static_cast<unsigned short>(2), static_cast<unsigned short>(4))), "Expected a noexcept function.");
static_assert(noexcept(boost::integer::gcd(static_cast<int>(2), static_cast<int>(4))), "Expected a noexcept function.");
static_assert(noexcept(boost::integer::gcd(static_cast<unsigned int>(2), static_cast<unsigned int>(4))), "Expected a noexcept function.");
static_assert(noexcept(boost::integer::gcd(static_cast<long>(2), static_cast<long>(4))), "Expected a noexcept function.");
static_assert(noexcept(boost::integer::gcd(static_cast<unsigned long>(2), static_cast<unsigned long>(4))), "Expected a noexcept function.");
static_assert(noexcept(boost::integer::gcd(static_cast<long long>(2), static_cast<long long>(4))), "Expected a noexcept function.");
static_assert(noexcept(boost::integer::gcd(static_cast<unsigned long long>(2), static_cast<unsigned long long>(4))), "Expected a noexcept function.");
constexpr const boost::uint64_t i = 347 * 463 * 727;
constexpr const boost::uint64_t j = 191 * 347 * 281;
constexpr const boost::uint64_t k = boost::integer::gcd(i, j);
constexpr const boost::uint64_t l = boost::integer::lcm(i, j);
static_assert(k == 347, "Expected result not integer in constexpr gcd.");
static_assert(l == 6268802158037, "Expected result not integer in constexpr lcm.");
}
void test_constexpr3()
{
constexpr const boost::uint64_t i = 347 * 463 * 727;
constexpr const boost::uint64_t j = 191 * 347 * 281;
constexpr const boost::uint64_t k = boost::integer::gcd_detail::Euclid_gcd(i, j);
static_assert(k == 347, "Expected result not integer in constexpr gcd.");
}
void test_constexpr4()
{
constexpr const boost::uint64_t i = 347 * 463 * 727;
constexpr const boost::uint64_t j = 191 * 347 * 281;
constexpr const boost::uint64_t k = boost::integer::gcd_detail::mixed_binary_gcd(i, j);
static_assert(k == 347, "Expected result not integer in constexpr gcd.");
}
void test_constexpr5()
{
constexpr const boost::uint64_t i = 347 * 463 * 727;
constexpr const boost::uint64_t j = 191 * 347 * 281;
constexpr const boost::uint64_t k = boost::integer::gcd_detail::Stein_gcd(i, j);
static_assert(k == 347, "Expected result not integer in constexpr gcd.");
}
#endif