dpnp_fptr.hpp

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/*
 * This header file contains internal function declarations related to FPTR
 * interface. It should not contains public declarations
 */
 
#pragma once
#ifndef BACKEND_FPTR_H // Cython compatibility
#define BACKEND_FPTR_H
 
#include <complex>
#include <map>
#include <stdexcept>
 
#include <sycl/sycl.hpp>
 
#include <dpnp_iface_fptr.hpp>
 
typedef std::map<DPNPFuncType, DPNPFuncData_t> map_2p_t;
typedef std::map<DPNPFuncType, map_2p_t> map_1p_t;
typedef std::map<DPNPFuncName, map_1p_t> func_map_t;
 
const DPNPFuncType eft_INT = DPNPFuncType::DPNP_FT_INT;
const DPNPFuncType eft_LNG = DPNPFuncType::DPNP_FT_LONG;
const DPNPFuncType eft_FLT = DPNPFuncType::DPNP_FT_FLOAT;
const DPNPFuncType eft_DBL = DPNPFuncType::DPNP_FT_DOUBLE;
const DPNPFuncType eft_C64 = DPNPFuncType::DPNP_FT_CMPLX64;
const DPNPFuncType eft_C128 = DPNPFuncType::DPNP_FT_CMPLX128;
const DPNPFuncType eft_BLN = DPNPFuncType::DPNP_FT_BOOL;
 
template <typename T, typename... Ts>
struct is_any : std::disjunction<std::is_same<T, Ts>...>
{
};
 
template <typename T, typename... Ts>
struct are_same : std::conjunction<std::is_same<T, Ts>...>
{
};
 
template <typename T, typename... Ts>
constexpr auto is_any_v = is_any<T, Ts...>::value;
 
template <typename T1, typename T2, typename... Ts>
constexpr auto both_types_are_same =
    std::conjunction_v<is_any<T1, Ts...>, are_same<T1, T2>>;
 
template <typename _Tp>
using dpnp_remove_cvref_t =
    typename std::remove_cv_t<typename std::remove_reference_t<_Tp>>;
 
class dpnp_less_comp
{
public:
    template <typename _Xp, typename _Yp>
    bool operator()(_Xp &&__x, _Yp &&__y) const
    {
        if constexpr (both_types_are_same<
                          dpnp_remove_cvref_t<_Xp>, dpnp_remove_cvref_t<_Yp>,
                          std::complex<float>, std::complex<double>>) {
            bool ret = false;
            _Xp a = std::forward<_Xp>(__x);
            _Yp b = std::forward<_Yp>(__y);
 
            if (a.real() < b.real()) {
                ret = (a.imag() == a.imag() || b.imag() != b.imag());
            }
            else if (a.real() > b.real()) {
                ret = (b.imag() != b.imag() && a.imag() == a.imag());
            }
            else if (a.real() == b.real() ||
                     (a.real() != a.real() && b.real() != b.real())) {
                ret = (a.imag() < b.imag() ||
                       (b.imag() != b.imag() && a.imag() == a.imag()));
            }
            else {
                ret = (b.real() != b.real());
            }
            return ret;
        }
        else {
            return std::forward<_Xp>(__x) < std::forward<_Yp>(__y);
        }
    }
};
 
void func_map_init_arraycreation(func_map_t &fmap);
void func_map_init_linalg(func_map_t &fmap);
void func_map_init_random(func_map_t &fmap);
void func_map_init_sorting(func_map_t &fmap);
 
#endif // BACKEND_FPTR_H