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std::make_reverse_iterator(3) | C++ Standard Libary | std::make_reverse_iterator(3) |
NAME¶
std::make_reverse_iterator - std::make_reverse_iterator
Synopsis¶
Defined in header <iterator>
template< class Iter > (since C++14)
std::reverse_iterator<Iter> make_reverse_iterator( Iter i (constexpr
since C++17)
);
make_reverse_iterator is a convenience function template that constructs a
std::reverse_iterator for the given iterator i (which must be a
LegacyBidirectionalIterator) with the type deduced from the type of the
argument.
Parameters¶
i - iterator to be converted to reverse iterator
Return value¶
A std::reverse_iterator constructed from i.
Notes¶
Feature-test macro Value Std Feature
__cpp_lib_make_reverse_iterator 201402L (C++14)
std::make_reverse_iterator
Possible implementation¶
template<class Iter>
constexpr std::reverse_iterator<Iter> make_reverse_iterator(Iter i)
{
return std::reverse_iterator<Iter>(i);
}
Example¶
// Run this code
#include <algorithm>
#include <iostream>
#include <iterator>
#include <vector>
int main()
{
std::vector<int> v{1, 3, 10, 8, 22};
std::sort(v.begin(), v.end());
std::copy(v.begin(), v.end(), std::ostream_iterator<int>(std::cout,
", "));
std::cout << '\n';
std::copy(std::make_reverse_iterator(v.end()),
std::make_reverse_iterator(v.begin()),
std::ostream_iterator<int>(std::cout, ", "));
std::cout << '\n';
}
Output:¶
1, 3, 8, 10, 22,
22, 10, 8, 3, 1,
See also¶
reverse_iterator iterator adaptor for reverse-order traversal
(class template)
rbegin returns a reverse iterator to the beginning of a container or array
crbegin (function template)
(C++14)
rend returns a reverse end iterator for a container or array
crend (function template)
(C++14)
2024.06.10 | http://cppreference.com |