std::forward_list::merge
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| void merge( forward_list& other ); |
(1) | (seit C++11) |
| void merge( forward_list&& other ); |
(1) | (seit C++11) |
| template <class Compare> void merge( forward_list& other, Compare comp ); |
(2) | (seit C++11) |
| template <class Compare> void merge( forward_list&& other, Compare comp ); |
(2) | (seit C++11) |
Führt zwei sortierte Listen in einem. Die Listen sollten in aufsteigender Reihenfolge sortiert werden .
Original:
Merges two sorted lists into one. The lists should be sorted into ascending order.
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Keine Elemente kopiert werden. Der Behälter
other leer nach der Operation. Die Funktion tut nichts, wenn this == &other. Wenn get_allocator() != other.get_allocator(), ist das Verhalten undefiniert. Keine Iteratoren oder Referenzen geworden ungültig, außer dass die Iteratoren der bewegten Elemente nun in *this beziehen, nicht in other. Die erste Version verwendet operator< um die Elemente zu vergleichen, verwendet die zweite Version des gegebenen Vergleichsfunktion comp .Original:
No elements are copied. The container
other becomes empty after the operation. The function does nothing if this == &other. If get_allocator() != other.get_allocator(), the behavior is undefined. No iterators or references become invalidated, except that the iterators of moved elements now refer into *this, not into other. The first version uses operator< to compare the elements, the second version uses the given comparison function comp.The text has been machine-translated via Google Translate.
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Inhaltsverzeichnis |
[Bearbeiten] Parameter
| other | - | ein weiterer Behälter zu verschmelzen
Original: another container to merge The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
| comp | - | comparison function which returns true if the first argument is less than the second. The signature of the comparison function should be equivalent to the following: bool cmp(const Type1 &a, const Type2 &b); The signature does not need to have const &, but the function must not modify the objects passed to it. |
[Bearbeiten] Rückgabewert
(None)
Original:
(none)
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[Bearbeiten] Beispiel
#include <iostream> #include <forward_list> std::ostream& operator<<(std::ostream& ostr, const std::forward_list<int>& list) { for (auto &i : list) { ostr << " " << i; } return ostr; } int main() { std::forward_list<int> list1 = { 5,9,0,1,3 }; std::forward_list<int> list2 = { 8,7,2,6,4 }; list1.sort(); list2.sort(); std::cout << "list1: " << list1 << "\n"; std::cout << "list2: " << list2 << "\n"; list1.merge(list2); std::cout << "merged: " << list1 << "\n"; }
Output:
list1: 0 1 3 5 9 list2: 2 4 6 7 8 merged: 0 1 2 3 4 5 6 7 8 9
[Bearbeiten] Komplexität
höchstens size() + other.size() - 1 Vergleiche .
Original:
at most size() + other.size() - 1 comparisons.
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[Bearbeiten] Siehe auch
| Elemente aus einem anderen bewegt forward_list Original: moves elements from another forward_list The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (öffentliche Elementfunktion) | |
