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NC T finders: Improve code coverage.

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jzmaddock
2026-02-18 16:35:23 +00:00
parent 040a23cc89
commit 585d317947
2 changed files with 8 additions and 1 deletions
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2
include/boost/math/distributions/non_central_t.hpp
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@@ -751,7 +751,7 @@ namespace boost
//
// Can't find a thing if one of p and q is zero:
//
return policies::raise_evaluation_error<RealType>(function, "Can't find degrees of freedom when the probability is 0 or 1, only possible answer is %1%", // LCOV_EXCL_LINE
return policies::raise_evaluation_error<RealType>(function, "Can't find degrees of freedom when the probability is 0 or 1, only possible answer is %1%",
RealType(std::numeric_limits<RealType>::quiet_NaN()), Policy()); // LCOV_EXCL_LINE
}
if (fabs(x) < tools::epsilon<RealType>())

7
test/test_nc_t.hpp
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@@ -541,6 +541,13 @@ void quantile_sanity_check(T& data, const char* type_name, const char* test)
{
BOOST_ERROR(e.what());
}
// Code coverage:
BOOST_CHECK_THROW(boost::math::non_central_t_distribution<value_type>::find_degrees_of_freedom(data[i][1], boost::math::tools::epsilon<value_type>() / 2, data[i][3]), boost::math::evaluation_error);
BOOST_CHECK_THROW(boost::math::non_central_t_distribution<value_type>::find_degrees_of_freedom(boost::math::complement(data[i][1], boost::math::tools::epsilon<value_type>() / 2, data[i][3])), boost::math::evaluation_error);
BOOST_CHECK_THROW(boost::math::non_central_t_distribution<value_type>::find_degrees_of_freedom(data[i][1], data[i][2], value_type(0)), boost::math::evaluation_error);
BOOST_CHECK_THROW(boost::math::non_central_t_distribution<value_type>::find_degrees_of_freedom(boost::math::complement(data[i][1], data[i][2], value_type(0))), boost::math::evaluation_error);
BOOST_CHECK_THROW(boost::math::non_central_t_distribution<value_type>::find_degrees_of_freedom(data[i][1], data[i][2], value_type(1)), boost::math::evaluation_error);
BOOST_CHECK_THROW(boost::math::non_central_t_distribution<value_type>::find_degrees_of_freedom(boost::math::complement(data[i][1], data[i][2], value_type(1))), boost::math::evaluation_error);
}
}
#endif