object_s_di< v_src, v_dst, OBJ_ENCAP, prp...> Struct Template Reference

It copy the properties from one object to another. More...

Detailed Description

template<typename v_src, typename v_dst, int... prp>
struct object_s_di< v_src, v_dst, OBJ_ENCAP, prp...>

It copy the properties from one object to another.

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

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

    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;

    // copy from src to dst
    object_s_di<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),1.0);
    BOOST_REQUIRE_EQUAL(boost::fusion::at_c<p::y>(dst.data),2.0);

    for (size_t i = 0 ; i < 3 ;  i++)
        BOOST_REQUIRE_EQUAL(boost::fusion::at_c<p::v>(dst.data)[i],i + 5.0);

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

    typedef encapc<1,Point_test<float>,openfpm::vector<Point_test<float>>::memory_conf> encap_dst;
    typedef encapc<1,object<vboost_red>,openfpm::vector<object<vboost_red>>::memory_conf> 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;

    for (size_t i = 0 ; i < 3 ;  i++)
        v_point_red.template get<2>(0)[i] = i + 15.0;

    auto dst_e = v_point.get(0);
    auto src_e = v_point_red.get(0);

    object_s_di<encap_src,encap_dst,OBJ_ENCAP,0,1,4>(src_e,dst_e);

    BOOST_REQUIRE_EQUAL(v_point.get(0).template get<p::x>(),11.0);
    BOOST_REQUIRE_EQUAL(v_point.get(0).template get<p::y>(),12.0);

    for (size_t i = 0 ; i < 3 ;  i++)
        BOOST_REQUIRE_EQUAL(v_point.get(0).template get<p::v>()[i],i + 15.0);

Definition at line 189 of file object_s_di.hpp.

#include <object_s_di.hpp>

Public Member Functions
	object_s_di (const v_src &&vs, v_dst &&vd)
	object_s_di (const v_src &vs, v_dst &vd)

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The documentation for this struct was generated from the following file:

• src/util/object_s_di.hpp