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Fix bug in fixed_int::convert_to with negative numbers.

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Fix bug in fixed_int shift operator when shifting by 0.
Add preliminary gcd/lcm support for integer types.
Add static asserts to floating-point only functions.

[SVN r76706]
This commit is contained in:
John Maddock
2012-01-26 10:11:10 +00:00
parent 4472a37b0e
commit d69424adad
9 changed files with 324 additions and 2 deletions
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22
test/test_arithmetic.cpp
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@@ -9,6 +9,7 @@
#include <boost/detail/lightweight_test.hpp>
#include <boost/math/special_functions/pow.hpp>
#include <boost/math/common_factor_rt.hpp>
#if !defined(TEST_MPF_50) && !defined(TEST_MPF) && !defined(TEST_BACKEND) && !defined(TEST_MPZ) && \
!defined(TEST_CPP_FLOAT) && !defined(TEST_MPFR) && !defined(TEST_MPFR_50) && !defined(TEST_MPQ) \
@@ -345,6 +346,14 @@ void test_integer_ops(const boost::mpl::int_<boost::multiprecision::number_kind_
//
// Non-member functions:
//
a = 400;
b = 45;
BOOST_TEST(gcd(a, b) == boost::math::gcd(400, 45));
BOOST_TEST(lcm(a, b) == boost::math::lcm(400, 45));
BOOST_TEST(gcd(a, 45) == boost::math::gcd(400, 45));
BOOST_TEST(lcm(a, 45) == boost::math::lcm(400, 45));
BOOST_TEST(gcd(400, b) == boost::math::gcd(400, 45));
BOOST_TEST(lcm(400, b) == boost::math::lcm(400, 45));
if(std::numeric_limits<Real>::is_signed)
{
a = -20;
@@ -355,6 +364,15 @@ void test_integer_ops(const boost::mpl::int_<boost::multiprecision::number_kind_
BOOST_TEST(abs(a) == 20);
BOOST_TEST(abs(-a) == 20);
BOOST_TEST(abs(+a) == 20);
a = -400;
b = 45;
BOOST_TEST(gcd(a, b) == boost::math::gcd(-400, 45));
BOOST_TEST(lcm(a, b) == boost::math::lcm(-400, 45));
BOOST_TEST(gcd(a, 45) == boost::math::gcd(-400, 45));
BOOST_TEST(lcm(a, 45) == boost::math::lcm(-400, 45));
BOOST_TEST(gcd(-400, b) == boost::math::gcd(-400, 45));
BOOST_TEST(lcm(-400, b) == boost::math::lcm(-400, 45));
}
}
@@ -458,6 +476,10 @@ void test_negative_mixed(boost::mpl::true_ const&)
BOOST_TEST(n2 == Real(n2));
BOOST_TEST(n3 == Real(n3));
BOOST_TEST(n4 == Real(n4));
BOOST_TEST(Real(n1).template convert_to<Num>() == n1);
BOOST_TEST(Real(n2).template convert_to<Num>() == n2);
BOOST_TEST(Real(n3).template convert_to<Num>() == n3);
BOOST_TEST(Real(n4).template convert_to<Num>() == n4);
#if defined(TEST_MPFR) || defined(TEST_MPFR_50)
Num tol = 10 * std::numeric_limits<Num>::epsilon();
#else