名稱空間
變體
操作

std::forward_list<T,Allocator>::end, std::forward_list<T,Allocator>::cend

來自 cppreference.com
< cpp‎ | 容器‎ | forward_list
 
 
 
 
iterator end() noexcept;
(1) (C++11 起)
const_iterator end() const noexcept;
(2) (C++11 起)
const_iterator cend() const noexcept;
(3) (C++11 起)

返回指向 forward_list 中最後一個元素之後位置的迭代器。

此元素充當佔位符;嘗試訪問它將導致未定義行為。

range-begin-end.svg

目錄

[edit] 返回值

指向最後一個元素之後的迭代器。

[edit] 複雜度

常數時間。

[edit] 示例

#include <algorithm>
#include <iostream>
#include <numeric>
#include <string>
#include <forward_list>
 
int main()
{
    std::forward_list<int> nums{1, 2, 4, 8, 16};
    std::forward_list<std::string> fruits{"orange", "apple", "raspberry"};
    std::forward_list<char> empty;
 
    // Print forward_list.
    std::for_each(nums.begin(), nums.end(), [](const int n) { std::cout << n << ' '; });
    std::cout << '\n';
 
    // Sums all integers in the forward_list nums (if any), printing only the result.
    std::cout << "Sum of nums: "
              << std::accumulate(nums.begin(), nums.end(), 0) << '\n';
 
    // Prints the first fruit in the forward_list fruits, checking if there is any.
    if (!fruits.empty())
        std::cout << "First fruit: " << *fruits.begin() << '\n';
 
    if (empty.begin() == empty.end())
        std::cout << "forward_list 'empty' is indeed empty.\n";
}

輸出

1 2 4 8 16
Sum of nums: 31
First fruit: orange
forward_list 'empty' is indeed empty.

[edit] 參見

返回指向起始的迭代器
(public member function) [edit]
(C++11)(C++14)
返回指向容器或陣列末尾的迭代器
(function template) [edit]