nlohmann::json_pointer::back¶
const std::string& back() const;
Return last reference token.
Return value¶
Last reference token.
Exceptions¶
Throws out_of_range.405 if JSON pointer has no parent.
Complexity¶
Constant.
Examples¶
Example
The example shows the usage of back
.
#include <iostream>
#include <nlohmann/json.hpp>
using json = nlohmann::json;
int main()
{
// different JSON Pointers
json::json_pointer ptr1("/foo");
json::json_pointer ptr2("/foo/0");
// call empty()
std::cout << "last reference token of " << ptr1 << " is " << ptr1.back() << '\n'
<< "last reference token of " << ptr2 << " is " << ptr2.back() << std::endl;
}
Output:
last reference token of "/foo" is foo
last reference token of "/foo/0" is 0
Version history¶
Added in version 3.6.0.