nlohmann::detail::exception Class Reference

general exception of the basic_json class More...

#include <json.hpp>

Inheritance diagram for nlohmann::detail::exception:

Public Member Functions
JSON_HEDLEY_RETURNS_NON_NULL const char *	what () const noexceptoverride
	returns the explanatory string More...

Public Attributes
const int	id
	the id of the exception More...

Protected Member Functions
	exception (int id_, const char *what_arg)

Static Protected Member Functions
static std::string	name (const std::string &ename, int id_)

Private Attributes
std::runtime_error	m
	an exception object as storage for error messages More...

Detailed Description

general exception of the basic_json class

This class is an extension of std::exception objects with a member id for exception ids. It is used as the base class for all exceptions thrown by the basic_json class. This class can hence be used as "wildcard" to catch exceptions.

Subclasses:

• 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
• other_error for exceptions indicating other library errors

{The following code shows how arbitrary library exceptions can be caught.,exception}

Since

version 3.0.0

Definition at line 1864 of file json.hpp.

Constructor & Destructor Documentation

nlohmann::detail::exception::exception ( int  id_, const char *  what_arg  )

inlineprotected

Definition at line 1879 of file json.hpp.

: id(id_), m(what_arg) {}

Member Function Documentation

static std::string nlohmann::detail::exception::name ( const std::string &  ename, int  id_  )

inlinestaticprotected

Definition at line 1881 of file json.hpp.

    {
        return "[json.exception." + ename + "." + std::to_string(id_) + "] ";
    }

JSON_HEDLEY_RETURNS_NON_NULL const char* nlohmann::detail::exception::what ( ) const

inlineoverridenoexcept

returns the explanatory string

Definition at line 1869 of file json.hpp.

    {
        return m.what();
    }

Member Data Documentation

const int nlohmann::detail::exception::id

the id of the exception

Definition at line 1875 of file json.hpp.

std::runtime_error nlohmann::detail::exception::m

private

an exception object as storage for error messages

Definition at line 1888 of file json.hpp.

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The documentation for this class was generated from the following file:

• json.hpp