std::forward_list::splice_after
From Cppreference
void splice_after(const_iterator pos, forward_list& other);
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(1) | (C++11 feature) |
void splice_after(const_iterator pos, forward_list&& other);
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(1) | (C++11 feature) |
void splice_after(const_iterator pos, forward_list& other, const_iterator it);
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(2) | (C++11 feature) |
void splice_after(const_iterator pos, forward_list&& other, const_iterator it);
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(2) | (C++11 feature) |
void splice_after(const_iterator pos, forward_list& other,
const_iterator first, const_iterator last); |
(3) | (C++11 feature) |
void splice_after(const_iterator pos, forward_list&& other,
const_iterator first, const_iterator last); |
(3) | (C++11 feature) |
Moves elements from another forward_list to *this.
No elements are copied. pos is a valid iterator in *this or is the before_begin() iterator. The behavior is undefined if get_allocator() != other.get_allocator(). No iterators or references become invalidated, the iterators to moved elements now refer into *this, not into other.
1) Moves all elements from other into *this. The elements are inserted after the element pointed to by pos. The container other becomes empty after the operation. The behavior is undefined if this == &other
2) Moves the element pointed to by it from other into *this. The element is inserted after the element pointed to by pos.
3) Moves the elements in the range (first, last) from other into *this. The elements are inserted after the element pointed to by pos. The element pointed-to by first is not moved. The behavior is undefined if pos is an iterator in the range (first,last).
Contents |
[edit] Parameters
pos | - | element after which the content will be inserted |
other | - | another container to move the content from |
it | - | the element to move from other to *this |
first, last | - | the range of elements to move from other to *this |
[edit] Return value
(none)
[edit] Complexity
1) linear in the size of other
2) Constant
3) linear in std::distance(first, last)
[edit] Example
Demonstrates the meaning of open interval (first, last) in the third form of splice_after(): the first element of l1 is not moved.
#include <iostream> #include <forward_list> int main() { std::forward_list<int> l1 = {1,2,3,4,5}; std::forward_list<int> l2 = {10,11,12}; l2.splice_after(l2.cbegin(), l1, l1.cbegin(), l1.cend()); // not equivalent to l2.splice_after(l2.cbegin(), l1); for(int n : l1) std::cout << n << ' '; std::cout << '\n'; for(int n : l2) std::cout << n << ' '; std::cout << '\n'; }
Output:
1 10 2 3 4 5 11 12
[edit] See also
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merges two sorted lists (public member function) |
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removes elements satisfying specific criteria (public member function) |