std::swap_ranges
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Заголовочный файл <algorithm>
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template< class ForwardIt1, class ForwardIt2 > ForwardIt2 swap_ranges( ForwardIt1 first1, ForwardIt1 last1, ForwardIt2 first2 ) |
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Обмен элементами между
[first1, last1)
диапазона и другой диапазон, начиная с first2
. Original:
Exchanges elements between range
[first1, last1)
and another range starting at first2
. The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
You can help to correct and verify the translation. Click here for instructions.
Содержание |
[править] Параметры
first1, last1 | - | первый ряд элементов для замены
Original: the first range of elements to swap The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
first2 | - | начало второго ряда элементов для замены
Original: beginning of the second range of elements to swap The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
Type requirements | ||
-ForwardIt1, ForwardIt2 must meet the requirements of ForwardIterator .
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-The types of dereferenced ForwardIt1 and ForwardIt2 must meet the requirements of Swappable
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[править] Возвращаемое значение
Итератор на элемент после последнего элемента обменять в диапазоне, начиная с
first2
.Original:
Iterator to the element past the last element exchanged in the range beginning with
first2
.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
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[править] Возможная реализация
template<class ForwardIt1, class ForwardIt2> ForwardIt1 swap_ranges(ForwardIt1 first1, ForwardIt1 last1, ForwardIt2 first2) { while (first1 != last1) { std::iter_swap(first1++, first2++); } return first2; } |
[править] Пример
Демонстрирует замена поддиапазоны из разных контейнеров
Original:
Demonstrates swapping of subranges from different containers
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
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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'; }
Вывод:
-1 -2 -3 4 5 1 2 3 -4 -5
[править] Сложность
линейные по расстоянию между
first
и last
Original:
linear in the distance between
first
and last
The text has been machine-translated via Google Translate.
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[править] См. также
свопы элементов указал на двух итераторов Original: swaps the elements pointed to by two iterators The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (шаблон функции) | |
свопы значения двух объектов Original: swaps the values of two objects The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (шаблон функции) |