v_transform_two_v2< H, arg0, L > Struct Template Reference

#include <variadic_to_vmpl.hpp>

Public Types
typedef boost::mpl::reverse< L >::type	reversed_
	reverse the sequence
typedef seq_traits_impl< reversed_ >::first_	first
	first element
typedef seq_traits_impl< reversed_ >::last_	last
	last element
typedef exit_impl< first, last >::type	exit_
	calculate the exit condition
typedef v_transform_two_v2_impl< H, arg0, first, last, exit_::value >::type	type
	generate the boost::fusion::vector apply H on each term

Detailed Description

template<template< typename, typename > class H, typename arg0, typename L>
struct v_transform_two_v2< H, arg0, L >

It transform a boost::fusion::vector to another boost::fusion::vector applying a meta-function H on each element

Parameters

H	2-argument metafunction (is a structure with typedef type)
L	boost::fusion::vector

Meta-function definition

template <typename arg0, typename T>
struct Ftwo
{
    typedef aggregate<T> type;
};

Usage

 
    typedef boost::mpl::vector<float,float,float[3]> bfv;
 
    // tbvf is boost::fusion::vector<scalar<float>,scalar<float>,scalar<float[3]>>
    typedef v_transform_two<Ftwo,float,bfv>::type tbfv;
 
    bool val = std::is_same<boost::mpl::at<tbfv,boost::mpl::int_<0>>::type,aggregate<float>>::value;
    BOOST_REQUIRE_EQUAL(val,true);
 
    val = std::is_same<boost::mpl::at<tbfv,boost::mpl::int_<1>>::type,aggregate<float>>::value;
    BOOST_REQUIRE_EQUAL(val,true);
 
    val = std::is_same<boost::mpl::at<tbfv,boost::mpl::int_<2>>::type,aggregate<float[3]>>::value;
    BOOST_REQUIRE_EQUAL(val,true);
 

Definition at line 250 of file variadic_to_vmpl.hpp.

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

• openfpm_data/src/util/variadic_to_vmpl.hpp