Copy assignment operator. Copies a JSON value via the "copy and swap" strategy: It is expressed in terms of the copy constructor, destructor, and the swap()
member function.
- Parameters
-
[in] | other | value to copy from |
- Complexity
- Linear.
- Requirements
- This function helps
basic_json
satisfying the Container requirements:
- The complexity is linear.
- Example
- The code below shows and example for the copy assignment. It creates a copy of value
a
which is then swapped with b
. Finally, the copy of a
(which is the null value after the swap) is destroyed.
2 #include <nlohmann/json.hpp>
16 std::cout << a <<
'\n';
17 std::cout << b <<
'\n';
Output (play with this example online): 23
23
The example code above can be translated withg++ -std=c++11 -Isingle_include doc/examples/basic_json__copyassignment.cpp -o basic_json__copyassignment
- Since
- version 1.0.0
Definition at line 16469 of file json.hpp.