std::vector::cend
const_iterator cend() const noexcept;
Returns a const_iterator pointing to the past-the-end element in the container.
返回一个具有const属性的iterator指向超尾元素。
A const_iterator is an iterator that points to const content. This iterator can be increased and decreased (unless it is itself also const), just like the iterator returned by vector::end,
but it cannot be used to modify the contents it points to, even if the vector object is not itself const.
一个const_iterator是一种类似于指向常量的迭代器,他们可以被递增或是递减(除非这个iterator本身是常量才不能这样),这就像和end()返回的iterator一样,只是cend()返回的迭代器不能用于修改该元素而已,甚至vector本身并不是const属性,该方法返回的iterator也是不能用于修改元素的.
If the container is empty, this function returns the same as vector::cbegin.
如果容器为空,这个返回值跟cbegin()是一样的。
The value returned shall not be dereferenced.
该方法得到的iterator(除非递递减之后)不应该被解除引用。
Parameters
none
Return Value
A const_iterator to the element past the end of the sequence.
返回值为一个const_iterator指向序列的超尾元素。
Member type const_iterator is a random access iterator type that points to a const
element.
返回的iterator属于随机访问迭代器。
Example
|
|
Output:
myvector contains: 10 20 30 40 50
|
Complexity
Constant.
Iterator validity
No changes.
Data races
The container is accessed.
No contained elements are accessed by the call, but the iterator returned can be used to access them. Concurrently accessing or modifying different elements is safe.
该方法不会访问容器里的元素,但是返回的这个iterator可以用来访问元素,并且用他们来访问或者是修改不同的元素都是安全的。(这里的修改?)
Exception safety
No-throw guarantee: this member function never throws exceptions.
The copy construction or assignment of the returned iterator is also guaranteed to never throw.
该方法不会抛出异常。
利用复制构造函数或者赋值运算得到该iterator的拷贝也不会抛出异常。
//翻译的不好的地方请多多指导,可以在下面留言或者点击左上方邮件地址给我发邮件,指出我的错误以及不足,以便我修改,更好的分享给大家,谢谢。
转载请注明出处:http://blog.csdn.net/qq844352155
2014-8-11
于GDUT