| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | //====================================================================================================================== | ||
| 2 | /* | ||
| 3 | POLYFLOAT - Extended precision floating points | ||
| 4 | Copyright : POLYFLOAT Contributors & Maintainers | ||
| 5 | SPDX-License-Identifier: BSL-1.0 | ||
| 6 | */ | ||
| 7 | //====================================================================================================================== | ||
| 8 | #pragma once | ||
| 9 | |||
| 10 | #include <polyfloat/details/callable.hpp> | ||
| 11 | #include <polyfloat/types/concepts.hpp> | ||
| 12 | #include <polyfloat/types/traits.hpp> | ||
| 13 | #include <type_traits> | ||
| 14 | #include <polyfloat/module/core/abs.hpp> | ||
| 15 | |||
| 16 | namespace plf | ||
| 17 | { | ||
| 18 | |||
| 19 | template<typename Options> | ||
| 20 | struct sum_of_prod_t : eve::strict_tuple_callable<sum_of_prod_t, Options, raw_option, pedantic_option> | ||
| 21 | { | ||
| 22 | template<typename... Ts> struct result : as_polyfloat_like<Ts...> | ||
| 23 | { | ||
| 24 | }; | ||
| 25 | |||
| 26 | template<concepts::polyfloat_like T0, | ||
| 27 | concepts::polyfloat_like T1, | ||
| 28 | concepts::polyfloat_like T2, | ||
| 29 | concepts::polyfloat_like T3> | ||
| 30 | requires(eve::same_lanes_or_scalar<T0, T1, T2, T3>) | ||
| 31 | 34 | POLYFLOAT_ABI typename result<T0, T1, T2, T3>::type constexpr operator()(T0 t0, T1 t1, T2 t2, T3 t3) const noexcept | |
| 32 | { | ||
| 33 | 34 | return POLYFLOAT_CALL(t0, t1, t2, t3); | |
| 34 | } | ||
| 35 | |||
| 36 | 34 | POLYFLOAT_CALLABLE_OBJECT(sum_of_prod_t, sum_of_prod_); | |
| 37 | }; | ||
| 38 | //====================================================================================================================== | ||
| 39 | //! @addtogroup core | ||
| 40 | //! @{ | ||
| 41 | //! @var sum_of_prod | ||
| 42 | //! @brief returns `a*b+c*d`. | ||
| 43 | //! | ||
| 44 | //! @groupheader{Header file} | ||
| 45 | //! | ||
| 46 | //! @code | ||
| 47 | //! #include <polyfloat/core.hpp> | ||
| 48 | //! @endcode | ||
| 49 | //! | ||
| 50 | //! @groupheader{Callable Signatures} | ||
| 51 | //! | ||
| 52 | //! @code | ||
| 53 | //! namespace polyfloat | ||
| 54 | //! { | ||
| 55 | //! constexpr auto sum_of_prod(auto a, auto, auto c, auto d) noexcept; | ||
| 56 | //! } | ||
| 57 | //! @endcode | ||
| 58 | //! | ||
| 59 | //! **Parameters** | ||
| 60 | //! | ||
| 61 | //! * `a`, `b`, `c`, `d`: Values to process. | ||
| 62 | //! | ||
| 63 | //! **Return value** | ||
| 64 | //! | ||
| 65 | //! Returns a*b+c*d. | ||
| 66 | //! | ||
| 67 | //! @groupheader{Example} | ||
| 68 | //! | ||
| 69 | //! @godbolt_todo{doc/core/sum_of_prod.cpp} | ||
| 70 | //====================================================================================================================== | ||
| 71 | |||
| 72 | inline constexpr auto sum_of_prod = eve::functor<sum_of_prod_t>; | ||
| 73 | //====================================================================================================================== | ||
| 74 | //! @} | ||
| 75 | //====================================================================================================================== | ||
| 76 | |||
| 77 | using callable_sum_of_prod_ = eve::tag_t<sum_of_prod>; | ||
| 78 | |||
| 79 | } | ||
| 80 | |||
| 81 | namespace plf::_ | ||
| 82 | { | ||
| 83 | |||
| 84 | template<typename T1, typename T2, typename T3, typename T4, eve::callable_options O> | ||
| 85 | 34 | constexpr auto sum_of_prod_( | |
| 86 | POLYFLOAT_DELAY(), O const& o, T1 const& a, T2 const& b, T3 const& c, T4 const& d) noexcept | ||
| 87 | { | ||
| 88 | if constexpr (O::contains(raw)) return a * b + c * d; | ||
| 89 | else | ||
| 90 | { | ||
| 91 | 34 | auto cd = mul[o](c, d); | |
| 92 | 34 | auto err = fms[o](c, d, cd); | |
| 93 | 34 | auto dop = fma[o](a, b, cd); | |
| 94 | 34 | return add[o][is_finite(err)](dop, err); | |
| 95 | } | ||
| 96 | } | ||
| 97 | |||
| 98 | } | ||
| 99 |