general exception of the basic_json class More...

#include <json.h>

Inheritance diagram for nlohmann::detail::exception:

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

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

Since: version 3.0.0

Definition at line 2352 of file json.h.

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

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

Member Function Documentation

◆ JSON_HEDLEY_NON_NULL()

nlohmann::detail::exception::JSON_HEDLEY_NON_NULL ( 3 )

protected

◆ m()

const char nlohmann::detail::exception::m ( what_arg )

inlineprotected

Definition at line 2367 of file json.h.

◆ name()

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

inlinestaticprotected

Definition at line 2369 of file json.h.

References nlohmann::to_string().

Referenced by nlohmann::detail::parse_error::create(), nlohmann::detail::invalid_iterator::create(), nlohmann::detail::type_error::create(), nlohmann::detail::out_of_range::create(), and nlohmann::detail::other_error::create().

◆ what()

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

inlineoverridenoexcept

returns the explanatory string

Definition at line 2357 of file json.h.

References m.

Member Data Documentation

◆ id

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

the id of the exception

Definition at line 2363 of file json.h.

◆ m

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

private

an exception object as storage for error messages

Definition at line 2376 of file json.h.

Referenced by what().

◆ what_arg

const char* nlohmann::detail::exception::what_arg