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std::end

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< cpp‎ | iterator

 
 
Iterator Bibliothek
Iterator Primitiven
Original:
Iterator primitives
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iterator_traits
input_iterator_tag
output_iterator_tag
forward_iterator_tag
bidirectional_iterator_tag
random_access_iterator_tag
iterator
Iterator Adaptern
Original:
Iterator adaptors
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reverse_iterator
Stream-Iteratoren
Original:
Stream iterators
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istream_iterator
ostream_iterator
istreambuf_iterator
ostreambuf_iterator
Iterator Operationen
Original:
Iterator operations
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advance
distance
prev(C++11)
next(C++11)
Reichen Zugang
Original:
Range access
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begin(C++11)
end(C++11)
 
Defined in header <iterator>
template< class C >
auto end( C& c ) -> decltype(c.end());
(1) (seit C++11)
template< class C >
auto end( const C& c ) -> decltype(c.end());
(2) (seit C++11)
template< class T, size_t N >
T* end( T (&array)[N] );
(3) (seit C++11)
Gibt einen Iterator auf das Ende (dh das Element nach dem letzten Element) des angegebenen Container c oder Array array .
Original:
Returns an iterator to the end (i.e. the element after the last element) of the given container c or array array.
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Inhaltsverzeichnis

[Bearbeiten] Parameter

c -
ein Behälter mit einer end Methode
Original:
a container with an end method
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array -
ein Array von beliebigem Typ
Original:
an array of arbitrary type
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[Bearbeiten] Rückgabewert

ein Iterator bis zum Ende des c oder array. Beachten Sie, dass das Ende eines Behälters oder Array als Element nach der letzten gültigen Element definiert .
Original:
an iterator to the end of c or array. Note that the end of a container or array is defined as the element following the last valid element.
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[Bearbeiten] Notes

Neben der in <iterator> enthalten ist, wird std::end garantiert zur Verfügung stehen, wenn eine der folgenden Header enthalten sind: <array>, <deque>, <forward_list>, <list>, <map>, <regex>, <set>, <string>, <unordered_map>, <unordered_set> und <vector> .
Original:
In addition to being included in <iterator>, std::end is guaranteed to become available if any of the following headers are included: <array>, <deque>, <forward_list>, <list>, <map>, <regex>, <set>, <string>, <unordered_map>, <unordered_set>, and <vector>.
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[Bearbeiten] Spezialisierungen

Benutzerdefinierte Spezialisierungen std::end kann für Klassen, die nicht aussetzen müssen eine geeignete end() Member-Funktion zur Verfügung gestellt werden, kann aber wiederholt werden. Die folgenden Spezialisierungen sind bereits von der Standard-Bibliothek zur Verfügung:
Original:
Custom specializations of std::end may be provided for classes that do not expose a suitable end() member function, yet can be iterated. The following specializations are already provided by the standard library:
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spezialisiert std::end
Original:
specializes std::end
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(Funktions-Template) [edit]
spezialisiert std::end
Original:
specializes std::end
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(Funktions-Template) [edit]

[Bearbeiten] Beispiel

#include <iostream>
#include <vector>
#include <iterator>
#include <algorithm>
 
int main() 
{
    std::vector<int> v = { 3, 1, 4 };
    if (std::find(std::begin(v), std::end(v), 5) != std::end(v)) {
        std::cout << "found a 5 in vector v!\n";
    }
 
    int a[] = { 5, 10, 15 };
    if (std::find(std::begin(a), std::end(a), 5) != std::end(a)) {
        std::cout << "found a 5 in array a!\n";
    }
}

Output:

found a 5 in array a!

[Bearbeiten] Siehe auch

(C++11)
liefert einen Iterator auf den Anfang eines Containers oder eines Arrays
Original:
returns an iterator to the beginning of a container or array
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(Funktion) [edit]