TupleElements.hpp File Reference

Access elements of a tuple. More...

#include <ints/Ranges.hpp>
#include <metaprogramming/SFINAE.hpp>
#include <metaprogramming/UniversalReferences.hpp>
#include <tuple/TupleClass.hpp>
#include <tuple/TupleOrder.hpp>

Go to the source code of this file.

Functions
template<std::size_t I, class T >
constexpr std::tuple_element_t< I, T > &&	SUNphi::get (T &&t)
template<class Tg , class T >
constexpr Tg &&	SUNphi::get (T &&t)
template<size_t I = 0, typename T , typename F , typename = EnableIf<isTupleLike<T>>>
void	SUNphi::forEach (T &&t, F &&f)
template<typename Tp , int... Ints>
decltype(auto)	SUNphi::getIndexed (const IntSeq< Ints... > &, Tp &&tp)
template<int N, typename Tp , TypeIf<(isTuple< Tp >), void * > = nullptr>
decltype(auto)	SUNphi::getHead (Tp &&tp)
template<int N, typename Tp , TypeIf<(isTuple< Tp >), void * > = nullptr>
decltype(auto)	SUNphi::getTail (const Tp &&tp)
template<int N, typename Tp , TypeIf<(isTuple< Tp >), void * > = nullptr>
decltype(auto)	SUNphi::getAllButPos (Tp &&tp)
template<typename Tg , typename Tp , TypeIf<(isTuple< Tp >), void * > = nullptr>
decltype(auto)	SUNphi::getAllButType (Tp &&tp)

Detailed Description

Access elements of a tuple.

Definition in file TupleElements.hpp.

Function Documentation

template<size_t I = 0, typename T , typename F , typename = EnableIf<isTupleLike<T>>>

void SUNphi::forEach	(	T &&	t,
		F &&	f
	)

Loop over all Tuple elements

Non const access to all elements of the Tuple, called recursively until I==sizeof...(Tp), incrementing the parameter I.

Template Parameters

I	Index of the Tuple element to extract
Func	Function type
Tp...	The Tuple parameters

Returns

void

Parameters

t	Tuple to act upon
f	Function iterating on the Tuple

Definition at line 55 of file TupleElements.hpp.

template<std::size_t I, class T >

constexpr std::tuple_element_t<I,T>&& SUNphi::get

(

T &&

t

)

Gets an element from the tuple.

Directly aliasing the std library. R-value case

Returns

A move-reference to the I tuple element.

Definition at line 23 of file TupleElements.hpp.

template<class Tg , class T >

constexpr Tg&& SUNphi::get

(

T &&

t

)

Gets the element of type T from the tuple.

Directly aliasing the std library. R-value case.

Returns

A move-reference to the T tuple type (if present).

Definition at line 34 of file TupleElements.hpp.

template<int N, typename Tp , TypeIf<(isTuple< Tp >), void * > = nullptr>

decltype(auto) SUNphi::getAllButPos

(

Tp &&

tp

)

Returns all elements of a Tuple but the N-th one

Takes the list of component according to an index containing the first [0,N) and (N,Sizeof...(Tuple))

Example:

Tuple<int,double,char> e;
auto GetAllBut<1>(e); // Tuple<int,char>

Definition at line 125 of file TupleElements.hpp.

template<typename Tg , typename Tp , TypeIf<(isTuple< Tp >), void * > = nullptr>

decltype(auto) SUNphi::getAllButType

(

Tp &&

tp

)

Returns all elements of a Tuple but the type T

First search the component, then call GetAllBut with the found position as a parameter

Example:

Tuple<int,double,char> e;
auto GetAllBut<double>(e); // Tuple<int,char>

Definition at line 143 of file TupleElements.hpp.

template<int N, typename Tp , TypeIf<(isTuple< Tp >), void * > = nullptr>

decltype(auto) SUNphi::getHead

(

Tp &&

tp

)

Gets the head of a Tuple

Return a tuple containg the first N elements of a tuple

Parameters

tp	Tuple from which to extract

Definition at line 86 of file TupleElements.hpp.

template<typename Tp , int... Ints>

decltype(auto) SUNphi::getIndexed	(	const IntSeq< Ints... > &	,
		Tp &&	tp
	)

Filter a Tuple on the basis of a list of index

Return a tuple containg the elements of a tuple according to a list of indices

Definition at line 73 of file TupleElements.hpp.

template<int N, typename Tp , TypeIf<(isTuple< Tp >), void * > = nullptr>

decltype(auto) SUNphi::getTail

(

const Tp &&

tp

)

Gets the tail of a Tuple

Return a Tuple containg the last N elements of a tuple

Number of elements in the tuple

Beginning of returned part

Parameters

tp	Tuple from which to extract

Definition at line 98 of file TupleElements.hpp.