nlohmann::basic_json::crbegin¶

const_reverse_iterator crbegin() const noexcept;

Returns an iterator to the reverse-beginning; that is, the last element.

Return value¶

reverse iterator to the last element

Exception safety¶

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

Complexity¶

Constant.

Examples¶

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

using json = nlohmann::json;

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

    // get an iterator to the reverse-beginning
    json::const_reverse_iterator it = array.crbegin();

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

5

See also¶

• crend returns a const reverse iterator to one before the first element
• rbegin returns a reverse iterator to the last element
• cbegin returns a const iterator to the first element
• Iterators - the article on iterators

Version history¶

• Added in version 1.0.0.