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C++ Vector Library - cend() Function
Description
The C++ function std::vector::cend() returns a constant random access iterator which points to past-the-end element of the vector.
Iterator obtained by this member function can be used to iterate container but cannot be used to modify the content of object to which it is pointing even if object itself is not constant.
Declaration
Following is the declaration for std::vector::cend() function form std::vector header.
C++11
const_iterator cend() const noexcept;
Parameters
None
Return value
Returns a constant random access iterator which points to past-the-end element of the vector.
Exceptions
This member function never throws exception.
Time complexity
Constant i.e. O(1)
Example
The following example shows the usage of std::vector::cend() function.
#include <iostream> #include <vector> using namespace std; int main(void) { auto ilist = {1, 2, 3, 4, 5}; vector<int> v(ilist); for (auto it = v.cend() - 1; it >= v.begin(); --it) cout << *it << endl; return 0; }
Let us compile and run the above program, this will produce the following result −
5 4 3 2 1
vector.htm
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