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    std::get(std::tuple)

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    <metanoindex/>

     
    C++
     
    Utilities-Bibliothek
     
    std::tuple
    Member-Funktionen
    Original:
    Member functions
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    tuple::tuple
    tuple::operator=
    tuple::swap
    Non-Member-Funktionen
    Original:
    Non-member functions
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    make_tuple
    tie
    forward_as_tuple
    None
    operator=
    operator!=
    operator<
    operator<=
    operator>
    operator>=
    std::swap
    get
    Helper-Klassen
    Original:
    Helper classes
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    tuple_size
    tuple_element
    uses_allocator
    ignore
     
    <tbody> </tbody>
    template< std::size_t I, class... Types > typename std::tuple_element<I, tuple<Types...> >::type& get( tuple<Types...>& t );
    		 (1) (seit C++11)
    template< std::size_t I, class... Types > typename std::tuple_element<I, tuple<Types...> >::type&& get( tuple<Types...>&& t );
    		 (2) (seit C++11)
    template< std::size_t I, class... Types > typename std::tuple_element<I, tuple<Types...> >::type const& get( const tuple<Types...>& t );
    		 (3) (seit C++11)
    Extrahiert die Ith element aus dem Tupel. I ist ein Integer-Wert in [0, sizeof...(Types)) .
    Original:
    Extracts the Ith element element from the tuple. I is an integer value in [0, sizeof...(Types)).
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    Parameter

    t -
    Tupel, dessen Inhalt zu extrahieren
    Original:
    tuple whose contents to extract
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    Rückgabewert

    1)

    Verweis auf die Ith Element t .
    Original:
    Reference to the Ith element of t.
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    2)

    Rvalue Verweis auf das Element Ith t, sofern das Element der L-Wert-Referenz-Typ, wobei in diesem Fall L-Wert Verweis zurückgegeben .
    Original:
    Rvalue reference to the Ith element of t, unless the element is of lvalue reference type, in which case lvalue reference is returned.
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    3)

    Const Verweis auf die Ith Element t .
    Original:
    Const reference to the Ith element of t.
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    Ausnahmen

    noexcept specification:  
    <tbody> </tbody>
    noexcept
      (seit C++11)

    Beispiel

    #include <iostream>
#include <string>
#include <tuple>

int main()
{
    auto t = std::make_tuple(1, "Foo", 3.14);
    std::cout << "(" << std::get<0>(t) << ", " << std::get<1>(t)
              << ", " << std::get<2>(t) << ")\n";
}

    Output: 

    (1, Foo, 3.14)

    Siehe auch

    		 accesses an element of an array
    (Funktions-Template) [edit]
    (C++11)
    greift ein Element eines pair
    Original:
    accesses an element of a pair
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    (Funktions-Template) [edit]