JSON for Modern C++  3.7.3

◆ end() [2/2]

iterator nlohmann::basic_json::end ( )
inlinenoexcept

Returns an iterator to one past the last element.

Illustration from cppreference.com
Returns
iterator one past the last element
Complexity
Constant.
Requirements
This function helps basic_json satisfying the Container requirements:
  • The complexity is constant.
Example
The following code shows an example for end().
1 #include <iostream>
2 #include <nlohmann/json.hpp>
3 
4 using json = nlohmann::json;
5 
6 int main()
7 {
8  // create an array value
9  json array = {1, 2, 3, 4, 5};
10 
11  // get am iterator to one past the last element
12  json::iterator it = array.end();
13 
14  // decrement the iterator to point to the last element
15  --it;
16 
17  // serialize the element that the iterator points to
18  std::cout << *it << '\n';
19 }

Output (play with this example online):
5
The example code above can be translated with
g++ -std=c++11 -Isingle_include doc/examples/end.cpp -o end 
See also
cend() – returns a const iterator to the end
begin() – returns an iterator to the beginning
cbegin() – returns a const iterator to the beginning
Since
version 1.0.0

Definition at line 18755 of file json.hpp.

nlohmann::basic_json::array
static basic_json array(initializer_list_t init={})
explicitly create an array from an initializer list
Definition: json.hpp:16089
nlohmann::basic_json::end
iterator end() noexcept
returns an iterator to one past the last element
Definition: json.hpp:18755
nlohmann::basic_json::iterator
iter_impl< basic_json > iterator
an iterator for a basic_json container
Definition: json.hpp:14820
nlohmann::json
basic_json<> json
default JSON class
Definition: json.hpp:2445