std::end

 

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end (C++11)

 

Defined in header <iterator>
template< class C > auto end( C& c ) -> decltype(c.end());	(1)	(since C++11)
template< class C > auto end( const C& c ) -> decltype(c.end());	(2)	(since C++11)
template< class T, size_t N > T* end( T (&array)[N] );	(3)	(since C++11)

Returns an iterator to the end (i.e. the element after the last element) of the given container c or array array.

Parameters

c	-	a container with an end method
array	-	an array of arbitrary type

Return value

an iterator to the end of c or array. Note that the end of a container or array is defined as the element following the last valid element.

Notes

In addition to being included in <iterator>, std::end is guaranteed to become available if any of the following headers are included: <array>, <deque>, <forward_list>, <list>, <map>, <regex>, <set>, <string>, <unordered_map>, <unordered_set>, and <vector>.

Specializations

Custom specializations of std::end may be provided for classes that do not expose a suitable end() member function, yet can be iterated. The following specializations are already provided by the standard library:

std::end(std::initializer_list) (C++11)	specializes std::end (function template)
std::end(std::valarray) (C++11)	specializes std::end (function template)

Example

#include <iostream>
#include <vector>
#include <iterator>
#include <algorithm>
 
int main() 
{
    std::vector<int> v = { 3, 1, 4 };
    if (std::find(std::begin(v), std::end(v), 5) != std::end(v)) {
        std::cout << "found a 5 in vector v!\n";
    }
 
    int a[] = { 5, 10, 15 };
    if (std::find(std::begin(a), std::end(a), 5) != std::end(a)) {
        std::cout << "found a 5 in array a!\n";
    }
}

Output:

found a 5 in array a!

See also

begin (C++11)	returns an iterator to the beginning of a container or array (function)