nlohmann::basic_json::end¶

iterator end() noexcept;
const_iterator end() const noexcept;

Returns an iterator to one past the last element.

end() points to the position after the last element and begin() to the first element; the dashed cell is the past-the-last position, which must not be dereferenced.

Return value¶

iterator one past the last element

Exception safety¶

No-throw guarantee: this member function never throws exceptions.

Complexity¶

Constant.

Examples¶

#include <iostream>
#include <nlohmann/json.hpp>

using nlohmann::json;

int main()
{
    // create an array value
    json array = {1, 2, 3, 4, 5};

    // get an iterator to one past the last element
    json::iterator it = array.end();

    // decrement the iterator to point to the last element
    --it;

    // serialize the element that the iterator points to
    std::cout << *it << '\n';
}

5

See also¶

• begin - returns an iterator to the first element
• cend - returns a const iterator to one past the last element
• rend - returns a reverse iterator to one before the first element
• Iterators - the article on iterators
• basic_json_view::end - the same iteration on a zero-copy view

Version history¶

• Added in version 1.0.0.