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Update fptraits.hpp with better error handling. #1354

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Update fptraits.hpp with better error handling. #1354

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8 changes: 6 additions & 2 deletions include/boost/math/special_functions/detail/fp_traits.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -274,7 +274,7 @@ template<> struct fp_traits_non_native<double, double_precision>
|| defined(BOOST_BORLANDC) || defined(__CODEGEAR__) || (defined(__APPLE__) && defined(__aarch64__)) || defined(_MSC_VER)\
|| (defined(__GNUC__) && defined(__aarch64__) && defined(_WIN32))\
|| (defined(__GNUC__) && (defined(__arm__) || defined(__thumb__)))\
|| defined(__SYCL_DEVICE_ONLY__)
|| defined(__SYCL_DEVICE_ONLY__) || (LDBL_MANT_DIG == 53)

static_assert(LDBL_MANT_DIG == 53, "Oops, assumption that long double is a 64-bit quantity is incorrect!!");

Expand Down Expand Up @@ -436,7 +436,7 @@ struct fp_traits_non_native<long double, extended_double_precision>

// long double (>64 bits), All other processors --------------------------------

#else
#elif (LDBL_MANT_DIG == 113)

// IEEE extended double precision format with 15 exponent bits (128 bits)

Expand Down Expand Up @@ -468,6 +468,10 @@ struct fp_traits_non_native<long double, extended_double_precision>
BOOST_MATH_STATIC constexpr int offset_ = BOOST_MATH_ENDIAN_BIG_BYTE ? 0 : 12;
};

#else

// Nothing in here, we don't understand the format!

#endif

//------------------------------------------------------------------------------
Expand Down