nlohmann::basic_json::other_error

class other_error : public exception;

This exception is thrown in case of errors that cannot be classified with the other exception types.

Exceptions have ids 5xx (see list of other errors).

classDiagram
  direction LR

    class std_exception ["std::exception"] {
        <<interface>>
    }

    class json_exception ["basic_json::exception"] {
        +const int id
        +const char* what() const
    }

    class json_parse_error ["basic_json::parse_error"] {
        +const std::size_t byte
    }

    class json_invalid_iterator ["basic_json::invalid_iterator"]
    class json_type_error ["basic_json::type_error"]
    class json_out_of_range ["basic_json::out_of_range"]
    class json_other_error ["basic_json::other_error"]

    std_exception <|-- json_exception
    json_exception <|-- json_parse_error
    json_exception <|-- json_invalid_iterator
    json_exception <|-- json_type_error
    json_exception <|-- json_out_of_range
    json_exception <|-- json_other_error

    style json_other_error fill:#CCCCFF

Member functions

• what - returns explanatory string

Member variables

• id - the id of the exception

Examples

Example

The following code shows how a other_error exception can be caught.

#include <iostream>
#include <nlohmann/json.hpp>

using json = nlohmann::json;
using namespace nlohmann::literals;

int main()
{
    try
    {
        // executing a failing JSON Patch operation
        json value = R"({
            "best_biscuit": {
                "name": "Oreo"
            }
        })"_json;
        json patch = R"([{
            "op": "test",
            "path": "/best_biscuit/name",
            "value": "Choco Leibniz"
        }])"_json;
        value.patch(patch);
    }
    catch (const json::other_error& e)
    {
        // output exception information
        std::cout << "message: " << e.what() << '\n'
                  << "exception id: " << e.id << std::endl;
    }
}

Output:

message: [json.exception.other_error.501] unsuccessful: {"op":"test","path":"/best_biscuit/name","value":"Choco Leibniz"}
exception id: 501

See also

• exception for the base class of all exceptions thrown by the library
• List of other errors
• parse_error for exceptions indicating a parse error
• invalid_iterator for exceptions indicating errors with iterators
• type_error for exceptions indicating executing a member function with a wrong type
• out_of_range for exceptions indicating access out of the defined range

Version history

• Since version 3.0.0.