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std::swap_ranges

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Algorithm Bibliothek
Funktionen
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Functions
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Nicht-modifizierende Sequenz Operationen
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Non-modifying sequence operations
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Modifizierende Sequenz Operationen
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Modifying sequence operations
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Partitionierungsoperationen
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Partitioning operations
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Sortierung Operationen (auf sortierten Bereiche)
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Sorting operations (on sorted ranges)
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Binary Suchaktionen (auf sortierten Bereiche)
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Binary search operations (on sorted ranges)
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Set-Operationen (auf sortierten Bereiche)
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Set operations (on sorted ranges)
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Heap-Operationen
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Heap operations
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Minimum / Maximum Operationen
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Minimum/maximum operations
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Numerische Operationen
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Numeric operations
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C-Bibliothek
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C library
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Defined in header <algorithm>
template< class ForwardIt1, class ForwardIt2 >
ForwardIt2 swap_ranges( ForwardIt1 first1, ForwardIt1 last1, ForwardIt2 first2 )
Exchanges Elemente zwischen Reichweite [first1, last1) und einem anderen Bereich ab first2 .
Original:
Exchanges elements between range [first1, last1) and another range starting at first2.
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Inhaltsverzeichnis

[Bearbeiten] Parameter

first1, last1 -
die erste Reihe von Elementen zu tauschen
Original:
the first range of elements to swap
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first2 -
Beginn der zweiten Reihe von Elementen zu tauschen
Original:
beginning of the second range of elements to swap
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Type requirements
-
ForwardIt1, ForwardIt2 must meet the requirements of ForwardIterator.
-
The types of dereferenced ForwardIt1 and ForwardIt2 must meet the requirements of Swappable

[Bearbeiten] Rückgabewert

Iterator das Element nach dem letzten Element in dem Bereich beginnend mit first2 ausgetauscht .
Original:
Iterator to the element past the last element exchanged in the range beginning with first2.
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[Bearbeiten] Mögliche Implementierung

template<class ForwardIt1, class ForwardIt2>
ForwardIt1 swap_ranges(ForwardIt1 first1, 
                             ForwardIt1 last1, 
                             ForwardIt2 first2)
{
    while (first1 != last1) {
        std::iter_swap(first1++, first2++);
    }
    return first2;
}

[Bearbeiten] Beispiel

Veranschaulicht Auslagern von Teilbereichen aus verschiedenen Behältern
Original:
Demonstrates swapping of subranges from different containers
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#include <algorithm>
#include <list>
#include <vector>
#include <iostream>
int main()
{
    std::vector<int> v = {1, 2, 3, 4, 5};
    std::list<int> l = {-1, -2, -3, -4, -5};
 
    std::swap_ranges(v.begin(), v.begin()+3, l.begin());
 
    for(int n : v)
       std::cout << n << ' ';
    std::cout << '\n';
    for(int n : l)
       std::cout << n << ' ';
    std::cout << '\n';
}

Output:

-1 -2 -3 4 5
1 2 3 -4 -5

[Bearbeiten] Komplexität

linear im Abstand first und last
Original:
linear in the distance between first and last
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[Bearbeiten] Siehe auch

Swaps die Elemente, auf die zwei Iteratoren
Original:
swaps the elements pointed to by two iterators
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(Funktions-Template) [edit]
tauscht die Werte von zwei Objekten
Original:
swaps the values of two objects
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(Funktions-Template) [edit]