Returns an iterator to the first element.
Illustration from cppreference.com
- Returns
- iterator to the first 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
begin()
.
2 #include <nlohmann/json.hpp>
15 std::cout << *it <<
'\n';
Output (play with this example online): 1
The example code above can be translated withg++ -std=c++11 -Isingle_include doc/examples/begin.cpp -o begin
- See also
- cbegin() – returns a const iterator to the beginning
-
end() – returns an iterator to the end
-
cend() – returns a const iterator to the end
- Since
- version 1.0.0
Definition at line 18684 of file json.hpp.