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Check for infinity before using it.

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[SVN r32254]
This commit is contained in:
John Maddock
2006-01-07 11:28:37 +00:00
parent a754671b05
commit da670c577a
1 changed files with 6 additions and 3 deletions
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9
test/log1p_expm1_test.cpp
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@@ -559,10 +559,13 @@ void test(T)
static const T m_one = -1;
BOOST_CHECK_EQUAL(boost::math::log1p(zero), zero);
BOOST_CHECK_EQUAL(boost::math::log1p(-zero), zero);
BOOST_CHECK_EQUAL(boost::math::log1p(m_one), -std::numeric_limits<T>::infinity());
BOOST_CHECK_EQUAL(boost::math::expm1(zero), zero);
BOOST_CHECK_EQUAL(boost::math::expm1(-std::numeric_limits<T>::infinity()), m_one);
BOOST_CHECK_EQUAL(boost::math::expm1(std::numeric_limits<T>::infinity()), std::numeric_limits<T>::infinity());
if(std::numeric_limits<T>::has_infinity)
{
BOOST_CHECK_EQUAL(boost::math::log1p(m_one), -std::numeric_limits<T>::infinity());
BOOST_CHECK_EQUAL(boost::math::expm1(-std::numeric_limits<T>::infinity()), m_one);
BOOST_CHECK_EQUAL(boost::math::expm1(std::numeric_limits<T>::infinity()), std::numeric_limits<T>::infinity());
}
}