It copy the properties from one object to another applying an operation. More...

Detailed Description

template<template< typename, typename > class op, typename v_src, typename v_dst, int... prp>
struct object_s_di_op< op, v_src, v_dst, OBJ_ENCAP, prp... >

It copy the properties from one object to another applying an operation.

Given a set of properties for the destination object (0,1,3) it copy that properties to the source object properties (0,1,2) applying an operation

For object we mean an object that follow the OpenFPM data structure format, see openFPM_data wiki for more information

Create a compile-time object and copy to the selected properties applying an operation

    typedef Point_test<float> p;
    typedef Point_test<float>::type vboost;
    typedef object_creator<Point_test<float>::type,0,1,4>::type vboost_red;
    object<vboost> dst;
    object<vboost_red> src;
    // fill the source properties 0,1,2 with data
    boost::fusion::at_c<0>(src.data) = 1.0;
    boost::fusion::at_c<1>(src.data) = 2.0;
    for (size_t i = 0 ; i < 3 ;  i++)
        boost::fusion::at_c<2>(src.data)[i] = i + 5.0;
    boost::fusion::at_c<0>(dst.data) = 2.0;
    boost::fusion::at_c<1>(dst.data) = 3.0;
    for (size_t i = 0 ; i < 3 ;  i++)
        boost::fusion::at_c<4>(dst.data)[i] = i + 7.0;
    // copy from src to dst
    object_s_di_op<add_,object<vboost_red>,object<vboost>,OBJ_NORMAL,0,1,4>(src,dst);
    // Check the result
    BOOST_REQUIRE_EQUAL(boost::fusion::at_c<p::x>(dst.data),3.0);
    BOOST_REQUIRE_EQUAL(boost::fusion::at_c<p::y>(dst.data),5.0);
    for (size_t i = 0 ; i < 3 ;  i++)
        BOOST_REQUIRE_EQUAL(boost::fusion::at_c<p::v>(dst.data)[i],2*i + 12.0);

Create a compile-time Encap object and copy to the selected properties applying an operation

    typedef encapc<1,Point_test<float>,openfpm::vector<Point_test<float>>::layout_type> encap_dst;
    typedef encapc<1,object<vboost_red>,openfpm::vector<object<vboost_red>>::layout_type> encap_src;
    openfpm::vector<p> v_point;
    openfpm::vector<object<vboost_red>> v_point_red;
    v_point.resize(2);
    v_point_red.resize(2);
    v_point_red.template get<0>(0) = 11.0;
    v_point_red.template get<1>(0) = 12.0;
    v_point.template get<0>(0) = 10.0;
    v_point.template get<1>(0) = 9.0;
    for (size_t i = 0 ; i < 3 ;  i++)
        v_point_red.template get<2>(0)[i] = i + 8.0;
    for (size_t i = 0 ; i < 3 ;  i++)
        v_point.template get<4>(0)[i] = i + 3.0;
    auto dst_e = v_point.get(0);
    auto src_e = v_point_red.get(0);
    object_s_di_op<add_,encap_src,encap_dst,OBJ_ENCAP,0,1,4>(src_e,dst_e);
    BOOST_REQUIRE_EQUAL(v_point.get(0).template get<p::x>(),21.0);
    BOOST_REQUIRE_EQUAL(v_point.get(0).template get<p::y>(),21.0);
    for (size_t i = 0 ; i < 3 ;  i++)
        BOOST_REQUIRE_EQUAL(v_point.get(0).template get<p::v>()[i],2*i + 11.0);

Definition at line 600 of file object_s_di.hpp.

#include <object_s_di.hpp>

Public Member Functions
__device__ __host__	object_s_di_op (const v_src &vs, v_dst &&vd)
	Implementation of the copy with operation. More...

__device__ __host__	object_s_di_op (const v_src &vs, v_dst &vd)
	Implementation of the copy with operation. More...

Constructor & Destructor Documentation

◆ object_s_di_op() [1/2]

template<template< typename, typename > class op, typename v_src , typename v_dst , int... prp>

__device__ __host__ object_s_di_op< op, v_src, v_dst, OBJ_ENCAP, prp... >::object_s_di_op	(	const v_src &	vs,
		v_dst &&	vd
	)

inline

Implementation of the copy with operation.

Parameters

vs	source object
vd	destination object

Definition at line 608 of file object_s_di.hpp.

◆ object_s_di_op() [2/2]