| 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/trunc.hpp> | ||
| 15 | #include <polyfloat/module/core/floor.hpp> | ||
| 16 | |||
| 17 | namespace plf | ||
| 18 | { | ||
| 19 | |||
| 20 | template<typename Options> | ||
| 21 | struct quadrant_t : eve::elementwise_callable<quadrant_t, Options, raw_option, pedantic_option> | ||
| 22 | { | ||
| 23 | template<concepts::polyfloat_like Z> | ||
| 24 | 2289 | POLYFLOAT_ABI constexpr Z operator()(Z z) const noexcept | |
| 25 | requires(!eve::integral_value<Z>) | ||
| 26 | { | ||
| 27 | 2289 | return POLYFLOAT_CALL(z); | |
| 28 | } | ||
| 29 | |||
| 30 | 88 | template<eve::integral_value Z> POLYFLOAT_ABI constexpr Z operator()(Z z) const noexcept | |
| 31 | { | ||
| 32 | 88 | return POLYFLOAT_CALL(z); | |
| 33 | } | ||
| 34 | 2462 | POLYFLOAT_CALLABLE_OBJECT(quadrant_t, quadrant_); | |
| 35 | }; | ||
| 36 | //====================================================================================================================== | ||
| 37 | //! @addtogroup core | ||
| 38 | //! @{ | ||
| 39 | //! @var quadrant | ||
| 40 | //! @brief return the quadrant value. | ||
| 41 | //! | ||
| 42 | //! @groupheader{Header file} | ||
| 43 | //! | ||
| 44 | //! @code | ||
| 45 | //! #include <polyfloat/core.hpp> | ||
| 46 | //! @endcode | ||
| 47 | //! | ||
| 48 | //! @groupheader{Callable Signatures} | ||
| 49 | //! | ||
| 50 | //! @code | ||
| 51 | //! namespace polyfloat | ||
| 52 | //! { | ||
| 53 | //! template<polyfloat::concepts::polyfloat_like T> constexpr auto quadrant(T n) noexcept; | ||
| 54 | //! } | ||
| 55 | //! @endcode | ||
| 56 | //! | ||
| 57 | //! **Parameters** | ||
| 58 | //! | ||
| 59 | //! * `n`: Value to process. Must be of integral type or a [flint](@ref is_flint) | ||
| 60 | //! | ||
| 61 | //! **Return value** | ||
| 62 | //! | ||
| 63 | //! return a value of the same type as `n` containing the quadrant number where `n` (supposed an | ||
| 64 | //! integer) lies. | ||
| 65 | //! | ||
| 66 | //! @groupheader{Example} | ||
| 67 | //! | ||
| 68 | //! @godbolt{doc/core/quadrant.cpp} | ||
| 69 | //====================================================================================================================== | ||
| 70 | |||
| 71 | inline constexpr auto quadrant = eve::functor<quadrant_t>; | ||
| 72 | //====================================================================================================================== | ||
| 73 | //! @} | ||
| 74 | //====================================================================================================================== | ||
| 75 | } | ||
| 76 | |||
| 77 | namespace plf::_ | ||
| 78 | { | ||
| 79 | template<typename Z, eve::callable_options O> | ||
| 80 | 2462 | constexpr auto quadrant_(POLYFLOAT_DELAY(), O const&, Z const& a) noexcept | |
| 81 | { | ||
| 82 | 172 | if constexpr (eve::integral_value<Z>) return a & Z(3); | |
| 83 | else | ||
| 84 | { | ||
| 85 | 2290 | Z b = plf::trunc(a) / 4; | |
| 86 | 2290 | return (b - plf::floor(b)) * 4; | |
| 87 | } | ||
| 88 | } | ||
| 89 | } | ||
| 90 |