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21 lines
584 B
21 lines
584 B
--- a/boost/math/tools/roots.hpp
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+++ b/boost/math/tools/roots.hpp
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@@ -665,8 +665,8 @@ namespace detail
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inline T discriminant(T const & a, T const & b, T const & c)
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{
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T w = 4*a*c;
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- T e = std::fma(-c, 4*a, w);
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- T f = std::fma(b, b, -w);
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+ T e = fma(-c, 4*a, w);
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+ T f = fma(b, b, -w);
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return f + e;
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}
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}
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@@ -674,7 +674,6 @@ namespace detail
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template<class T>
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auto quadratic_roots(T const& a, T const& b, T const& c)
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{
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- using std::copysign;
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using std::sqrt;
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if constexpr (std::is_integral<T>::value)
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{
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