How can C++ read the contents of a JSON file?
To read the contents of a JSON file in C++, you can use third-party libraries like RapidJSON or nlohmann/json. Here is an example code using the RapidJSON library:
Please rephrase the following in English as if it were your native language:
Include this in the code.
Add the following code into the program.
This code includes
Use the “rapidjson/document.h” header file.
Begin the main function:
Open the file “example.json” for reading.
Create a string called jsonData, using the content of a file from the beginning to the end as input.
Create a document using the rapidjson library.
The document is parsed from the data in the JSON string.
if the document has a parsing error, then…
Error in reading the JSON file.
Send back the value of 1.
I think my friend is avoiding me.
Here, you can access and manipulate data in the JSON file as needed.
Exit with a return value of 0.
I couldn’t make it to the meeting due to unforeseen circumstances.
I am not able to attend the meeting tomorrow.
Please note that you need to install the RapidJSON library first and include the appropriate header files in your code.
Additionally, if you are using the nlohmann/json library, the code example is as follows:
Could you please explain the difference between pass by value and pass by reference in C++?
Include
Include the following
– Include this in the code.
Include this in the code.
Start the main function.
Open the file “example.json” for reading.
jsonData is an instance of the class nlohmann::json.
Save the information in the file to the jsonData variable.
Here you can access and manipulate data in JSON files as needed.
zero should be returned.
“Sorry, I can’t make it to the party tonight.”
“Unfortunately, I won’t be able to attend the party this evening.”
– Can you please explain that in simpler terms?
Similarly, you need to install the nlohmann/json library first and include the appropriate header file in your code.
In the sample code above, “example.json” is the path to the JSON file that will be read. Once read, you can access and manipulate the data in the JSON file using methods provided by RapidJSON or nlohmann/json libraries.
